Western Digital Server WDBLGT0040KBK User Manual
™
WD Sentinel DX4000  
Small Office Storage Server  
Administrator’s Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Table of Contents  
WD® Service and Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii  
1
Important User Information . . . . . . . . . . . . . . . . . . . . 1  
Important Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1  
Handling Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2  
Recording Your WD Product Information . . . . . . . . . . . . . . . . . . . . .2  
About This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2  
2
Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3  
Getting to Know Your WD Sentinel DX4000 Server . . . . . . . . . . . . .3  
Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4  
System Requirements and Compatibility Information . . . . . . . . . . . .7  
Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8  
Product Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9  
Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11  
Where to Find Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13  
3
4
User Roles and Responsibilities . . . . . . . . . . . . . . . 14  
Types of WD Sentinel DX4000 Users . . . . . . . . . . . . . . . . . . . . . . .14  
How the WD Sentinel DX4000 Fits into Your Office . . . . . . . . . . . .15  
Managing the WD Sentinel Server (Dashboard) . . 16  
Setting up WD Sentinel Server & Connecting Computers. . . . . . . .16  
Accessing the Dashboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16  
Performing Dashboard Tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . .18  
Using the Home Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18  
Managing User Accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20  
Managing Computers and Backups . . . . . . . . . . . . . . . . . . . . . . .20  
Managing Server Folders and Hard Drives . . . . . . . . . . . . . . . . . .20  
Monitoring Add-ins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21  
Monitoring System Health and Alerts . . . . . . . . . . . . . . . . . . . . . .21  
Updating Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24  
Managing Server Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25  
Shutting Down the Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28  
5
Managing Storage on the WD Sentinel Server. . . . 29  
WD Sentinel Server RAID Storage . . . . . . . . . . . . . . . . . . . . . . . . .29  
Using USB Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30  
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
TABLE OF CONTENTS – i  
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Replacing a Failed Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31  
Adding Capacity by Adding a Drive . . . . . . . . . . . . . . . . . . . . . . . .33  
6
Using the WD Sentinel Server’s Features . . . . . . . 34  
Using the Launchpad (Internal Users). . . . . . . . . . . . . . . . . . . . . . .34  
Accessing Shared Folders Over Your Network. . . . . . . . . . . . . . . .40  
Accessing Computers and Shared Folders Remotely. . . . . . . . . . .41  
Backing up (Windows PC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42  
Backing up with Time Machine (Mac). . . . . . . . . . . . . . . . . . . . . . .45  
Recovering/Restoring (Windows PC) . . . . . . . . . . . . . . . . . . . . . . .48  
Recovering/Restoring (Mac) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49  
Recovering the WD Sentinel Server . . . . . . . . . . . . . . . . . . . . . . . .50  
7
Best Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60  
Setting up the WD Sentinel DX4000. . . . . . . . . . . . . . . . . . . . . . . .60  
Setting up Client Computers . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60  
Using the WD Sentinel DX4000 Efficiently . . . . . . . . . . . . . . . . . . .60  
Replacing Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61  
Sharing Files with External Users . . . . . . . . . . . . . . . . . . . . . . . . . .61  
Shutting Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61  
8
9
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62  
First Steps Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62  
Specific Problems and Corrective Actions . . . . . . . . . . . . . . . . . . .62  
Regulatory and Warranty Information. . . . . . . . . . . 64  
Regulatory Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64  
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66  
GNU General Public License (“GPL”) . . . . . . . . . . . . . . . . . . . . . . .66  
10 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67  
Managing iSCSI Storage on the WD Sentinel Server . . . . . . . . . . .67  
11 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72  
12 Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75  
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
TABLE OF CONTENTS – ii  
Download from Www.Somanuals.com. All Manuals Search And Download.  
IMPORTANT USER INFORMATION  
Important User Information  
1
Important Safety Instructions  
Handling Precautions  
Recording Your WD Product Information  
About This Guide  
Important Safety Instructions  
This device is designed and manufactured to assure personal safety. Improper use can  
result in electric shock or fire hazard. The safeguards incorporated into this unit will protect  
you if you observe the following procedures for installation, use, and servicing.  
Follow all warnings and instructions marked on the product.  
Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or  
aerosol cleaners. Use a damp cloth for cleaning.  
Do not use this product near any liquids.  
Do not place this product on an unstable surface. The product may fall, causing serious  
damage to the product.  
Do not drop the product.  
Do not block the slots and openings on the back or bottom side of the chassis; to  
ensure proper ventilation and reliable operation of the product and to protect it from  
overheating, these openings must not be blocked or covered. Making sure the server is  
standing upright also helps prevent overheating.  
Operate this product only from the type of power indicated on the marking label. If you  
are not sure of the type of power available, consult your dealer or local power company.  
Do not allow anything to rest on the power cord. Do not locate this product where  
persons will walk on the cord.  
If an extension cord is used with this product, make sure that the total ampere rating of  
the equipment plugged into the extension cord does not exceed the extension cord  
ampere rating. Also, make sure that the total rating of all products plugged into the wall  
outlet does not exceed the fuse rating.  
Never push objects of any kind into this product through the chassis slots as they may  
touch dangerous voltage points or short out parts that could result in a fire or electric  
shock.  
Unplug this product from the wall outlet and refer servicing to qualified service personnel  
under the following conditions:  
-
-
-
-
When the power cord or plug is damaged or frayed.  
If liquid has been spilled on the product.  
If the product has been exposed to rain or water.  
If the product does not operate normally when the operating instructions are fol-  
lowed. Adjust only those controls that are covered by the operating instructions  
since improper adjustment may result in damage and require extensive work by a  
qualified technician to return the product to normal condition.  
-
If the product has been dropped or the chassis has been damaged.  
1
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
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IMPORTANT USER INFORMATION  
-
If the product exhibits a distinct change in performance, contact WD Customer Sup-  
port at http://support.wdc.com.  
WARNING! The WD Sentinel Server uses a lithium battery, type CR2032. There is  
danger of an explosion if the battery is incorrectly replaced. Replace  
only with the same or equivalent battery type recommended by the  
manufacturer. Dispose of used batteries according to the  
manufacturer’s instructions.  
Handling Precautions  
WD products are precision instruments and must be handled with care during unpacking  
and installation. The WD Sentinel server may be damaged by rough handling, shock, or  
vibration. Be aware of the following precautions when unpacking and installing your external  
storage product:  
Do not drop or jolt the WD Sentinel server.  
Do not move the unit while it is powered on.  
Do not use this product as a portable drive.  
Recording Your WD Product Information  
Remember to write down the following WD product information, which is used for setup and  
technical support. Your WD product information is found on the label on the bottom of the  
device.  
Serial Number  
Model Number  
Purchase Date  
System and Software Notes  
About This Guide  
This Administrator's Guide provides detailed instructions and information for WD-specific  
interface elements and functions. Unless otherwise noted, refer to Microsoft Online Help for  
standard interface elements and functions.  
This guide uses the following conventions:  
Convention  
Bold font  
Used for ...  
Names of items on a page such as menus, buttons, option names, fields, and  
tabs that the user must click or complete and keys the user must press.  
Note:  
Extra, but not vital, information  
Important:  
Essential Information to know or to prevent problems when using the  
WD Sentinel server  
WARNING!  
Vital information for operating the WD Sentinel server or to prevent damage to  
the server or your computer.  
2
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
PRODUCT OVERVIEW  
Product Overview  
2
Getting to Know Your WD Sentinel DX4000 Server  
Key Features  
System Requirements and Compatibility Information  
Technical Specifications  
Product Views  
Indicators  
Where to Find Help  
Getting to Know Your WD Sentinel DX4000 Server  
Congratulations on your purchase of the WD Sentinel DX4000 Small Office Storage Server.  
Designed specifically for small business environments, WD Sentinel DX4000 is an easy-to-  
set-up Small Office Storage Server that provides secure centralized storage, complete data  
protection, and data access for your employees, clients, and vendors while in the office or  
working remotely from anywhere with an Internet connection. Featuring hardware and  
software from industry leaders, WD Sentinel DX4000 delivers a high performance, reliable,  
cost effective, and easy-to-manage storage server for your office network.  
Offering complete data protection for your business, WD Sentinel DX4000 includes hard  
drives optimized for quality, reliability, and performance, support for RAID levels 1 or 5,  
backup and restore software for up to 25 computers, integrated block level data  
de-duplication for computer backups, dual Gigabit Ethernet ports, and an optional second  
power supply for high reliability and availability.  
Note: RAID stands for Redundant Array of Independent Disks. RAID is a storage  
technology that provides increased reliability and data protection through  
redundancy.  
The WD Sentinel server offers a full range of powerful features to put you in control to  
manage and protect your business data. It not only provides a central repository for all of  
your company information, but also as a backup server for up to 25 computers in your office  
network, without ever needing to purchase additional backup software licenses.  
With its built-in secure Remote Web Access, your employees, local or working remotely, can  
collaborate with each other and securely access files and customer information, thereby  
improving productivity and efficiency.  
Featuring four hot-swappable tray-less drive bays, WD Sentinel DX4000 provides a wide  
range of storage capacities, from 4 TB (2 TB usable in RAID 1 configuration) up to 16 TB  
(12 TB usable in RAID 5 configuration).  
3
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
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PRODUCT OVERVIEW  
Key Features  
Plug-and-play installation: The easy set up process allows you to integrate WD Sentinel  
into your office network like a pro. The administration dashboard quickly guides you through  
the process including adding users, setting up data access, creating shared folders, and  
scheduling backups.  
Easy maintenance: Replacing one of the pre-installed drives, or adding a new drive, is as  
easy as changing a light bulb. Just open the door and swap out the drives. WD Sentinel  
does the rest. It seamlessly migrates the server to the appropriate RAID level  
and automatically expands the server’s storage capacity. Your users can still access your  
business data while the drive is being integrated. No data loss. No down time.  
Comprehensive data protection for your entire office has never been easier.  
The drives inside: Pre-configured with hard drives optimized for reliability, quality and  
performance.  
RAID: Featuring levels 1or 5 for data protection and speed.  
Automatic backup and restore: The software saves time and space by performing a  
full backup the first time and then automatically backing up only the data that has  
changed since the previous backup. In the event of a drive failure, WD Sentinel’s easy  
restore function finds your files, restores them to their previous location and gets you up  
and running again quickly. The backup software also includes full metal backup.  
Dual Ethernet ports: Comes configured in Adaptive Fault Tolerance, which keeps your  
network available by automatically switching to the second Ethernet port if the first one  
should fail.  
Optional dual power supply: WD Sentinel DX4000 offers the small business owner  
the option of adding a second power supply that will take over should a power surge or  
other failure damage the first power supply. With the optional second power supply you  
have the added peace of mind knowing that your system will remain operational.  
Secure remote access: WD Sentinel is perfect for businesses with employees working in  
satellite or home offices because you have the security of knowing all your business files are  
safely stored in one place and remote employees can access them from any computer with  
an Internet connection. WD Sentinel also performs automatic daily backups so all of the files  
on all the computers in your network are backed up and protected.  
Leading-edge performance: With dual Gigabit Ethernet connectivity, WD Sentinel  
DX4000 delivers read/write speeds up to 100 MB/s through the Gigabit Ethernet interface.  
That's three times faster than most network drives in this category today. For maximum  
flexibility there is also a SuperSpeed USB 3.0 port to allow you to connect additional storage  
devices and experience up to 5Gb/s transfer rates.  
A total solution with industry-leading technology partners  
We combined hardware and software from industry leaders to deliver a reliable, secure and  
easy-to-manage storage server designed specifically for small office environments. WD  
Sentinel features:  
Best-in-class hard drives – Equipped with hard drives (2 TB, 3 TB, and 4 TB) that  
feature high capacity storage, peak performance and best-in-class reliability.  
Intel® Atom® processor - Built with the latest Intel Atom dual core processor inside,  
WD Sentinel DX4000 can easily handle your small business’s day-to-day computing and  
file storage demands.  
4
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
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PRODUCT OVERVIEW  
Windows® Storage Server 2008 R2 Essentials –The tested Microsoft Windows  
Storage Server 2008 R2 Essentials operating system provides the cost effective, reliable,  
and scalable storage solution your small business needs to quickly and efficiently  
organize, protect, and share your critical business data using the familiar Windows user  
experience. With enterprise class, server-based, block level de-dupe backup capability  
you can be confident that you data is well protected.  
LCD display panel readily offers critical information: The LCD display panel on the  
front of the device allows you to monitor the system status and critical alerts.  
Real-time system status through the administration dashboard: View real-time  
updates for the system, RAID, and network status through WD Sentinel’s dashboard, which  
includes easy-to-use task wizards to help you set backup schedules, administer user  
accounts, and manage public and private shares.  
Compatible with multiple operating systems: Offers connector software support for  
Windows XP, Windows Vista®, and Windows 7. Also compatible with Mac OS X®  
Leopard®, Mac OS X® Snow Leopard®, Mac OS® X Lion*, or Mac OS® X Mountain Lion*.  
This cross-platform compatibility enables file sharing among Windows, Mac, and Unix/Linux  
operating systems.  
Stream digital media anywhere in your network: With the built-in DLNA server your  
employees can access any shared media libraries on the network rather than maintaining  
copies on their individual computers. You can also stream digital content like videos, music,  
or digital signage for employees, vendors or clients using remote web access.  
WD Guardian™ Services: When you need a little help from an expert, we’ll take care of  
you! WD Guardian™ Services offers flexible, affordable and hassle-free technical support  
and extended warranty plans with a variety of benefits. Choose the plan that works best for  
your business. Visit www.wd.com for details.  
Why WD?: Western Digital has been making hard drives for over 40 years. We know how to  
build drives to store and protect your data because we understand that your company’s  
data is paramount to your business success.  
Package Contents  
Small Office Storage Server  
1 RJ-45 Ethernet cable  
AC adapter with power cord  
2nd AC adapter with power cord(s) (with 16 TB model) available on some models  
Quick Install Guide  
5
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
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PRODUCT OVERVIEW  
WD Sentinel DX4000  
AC adapter  
(2nd AC adapter for 16 TB Models)  
Ethernet cable  
Quick Install Guide  
For information on additional accessories, for example, a drive, additional power adapter, or  
Ethernet cable visit:  
US  
www.shopwd.com or www.wdstore.com  
www.shopwd.ca or www.wdstore.ca  
www.shopwd.eu or www.wdstore.eu  
Canada  
Europe  
All others  
Contact WD Technical Support in your region. For a list of Technical  
Support contacts, visit http://support.wdc.com and see Knowledge  
Base Answer ID 1048.  
6
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
PRODUCT OVERVIEW  
System Requirements and Compatibility Information  
Requirement  
Description  
Windows 7  
Client Operating System  
Compatibility  
•
•
•
•
•
•
Home Basic (x86 and x64)  
Home Premium (x86 and x64)  
Professional (x86 and x64)  
Ultimate (x86 and x64)  
Enterprise (x86 and x64)  
Starter (x86)  
Windows Vista  
•
•
•
•
•
•
Home Basic with Service Pack 2 (SP2) (x86 x64)  
Home Premium with SP2 (x86 and x64)  
Business with SP2 (x86 and x64)  
Ultimate with SP2 (x86 and x64)  
Enterprise with SP2 (x86 and x64)  
Starter with SP2 (x86)  
Windows XP  
•
•
•
Home with Service Pack 3 (SP3)  
Professional with SP3  
Media Center 2005 with SP3  
Mac OS X  
•
•
•
•
Leopard®  
Snow Leopard®  
Lion™ *  
Mountain Lion™ *  
* For Mac OS X Lion and Mountain Lion, ensure that your WD Sentinel  
server has the latest software updates from Microsoft and Western Digital.  
Local Network  
•
Router/switch (Gigabit Ethernet recommended to maximize  
performance)  
•
DHCP enabled  
Broadband Access  
Required for remote access outside the LAN  
7
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
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PRODUCT OVERVIEW  
Technical Specifications  
Specification  
Description  
Interfaces  
•
•
High performance (10/100/1000) Gigabit Ethernet connection  
2 ports of powered USB 3.0  
I/O ports  
•
•
2 Ethernet (RJ-45 Ports)  
2 USB 3.0 Ports  
Supported protocols  
Internal hard drives  
CIFS/SMB, NFS, HTTP, HTTPS, WebDAV  
2-4 WD 3.5-inch SATA RAID Edition hard drives with  
RAID-specific time-limited error recovery (TLER)  
Pioneered by WD, this feature prevents drive fallout caused by the  
extended hard drive error-recovery processes common to desktop  
drives.  
Improved rotary vibration tolerance  
Optimized drive mechanics, system characterization, and process  
validation yield unmatched performance in high vibration  
environments.  
Approved Drive Models  
For a complete list of approved drive models, search for Answer ID  
9443 in the WD Knowledge Base at http://support.wdc.com.  
CPU  
Intel Atom Dual Core 1.80 Ghz  
2 GBytes SODIMM DDR3-800  
Memory  
Drive bays  
•
•
•
4 3.5 inch hard drive bays  
Hot swap capable  
Trayless design  
RAID level  
•
•
RAID 1 (2 drives only) and RAID 5 (3-4 drives)  
Automatic migration and capacity expansion  
Physical dimensions  
•
•
•
Length: 6.3 inch (160 mm)  
Width: 8.8 inch (224 mm)  
Height: 8.1 inch (206 mm))  
Weight  
•
•
•
•
4 TB and 6 TB: 10.76 lb (4.88 kg)  
8 TB and 12 TB: 14.0 lb (6.35 kg)  
16 TB: 13.51lb (6.13 kg)  
16 TB (EMEA): 14.51 lb (6.58 kg)  
Capacities  
Power  
4 TB, 6 TB, 8 TB, 12 TB, 16 TB  
•
•
2 external power ports  
Redundant failover  
Power supply  
•
•
•
Input voltage: 100 to 240 V AC  
Input frequency: 50 to 60 Hz  
Output voltage: 19V DC, up to 6.32A  
Temperature  
Switches  
•
•
Operating temperature: 5 to 35 °C (41 to 95 °F)  
Non-operating temperature: -20 to 65°C (-4 to 149 °F)  
•
•
Power  
Buttons for scrolling through messages on LCD  
8
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
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PRODUCT OVERVIEW  
Specification  
Description  
1 Power LED  
LEDs  
•
•
•
Flashing blue indicates boot status  
Flashings red indicates a fault condition  
Solid blue once booted, and there are no pending fault  
conditions, indicates a good operational state  
4 Drive Bay LEDs  
•
•
Flashing blue or solid blue indicates drive activity  
Solid RED indicates drive fault. (Drive must be replaced)  
LCD panel  
2 lines of 16 characters for status and alerts  
Windows Storage Server 2008 R2 Essentials  
25-client computer support for backup (server based)  
Operating System  
Backups  
Recovery  
•
•
Bare metal restore  
File/folder level restore  
Product Views  
Front View  
Power/Status LED  
Power button  
Scroll buttons  
Drive status LEDs  
Door covering drives  
9
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
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PRODUCT OVERVIEW  
Back View  
Ethernet ports  
1 & 2  
Power ports  
1 & 2  
USB ports  
1 & 2  
Reset/Recovery button  
Fan  
Kensington Security Lock  
Component  
Icon  
Description  
Ethernet ports  
Connect the device to a local network.  
Power ports  
Connects the device to an AC adapter and the power outlet.  
Reset /Recovery  
button  
Button on the back of the server recovers the server (including the operating  
system) while using a USB drive in an event of an OS corruption.  
USB ports  
Connects with USB 2.0 or 3.0 devices such as a USB storage or a UPS.  
10  
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
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PRODUCT OVERVIEW  
Indicators  
LCD  
The Liquid Crystal Display (LCD) on the front of the WD Sentinel server is a portal into its  
status. Normally, the LCD displays the name of the WD Sentinel server that the administrator  
assigned during initial setup along with its IP address. You can use either of these to  
discover and communicate with the server. (See the Quick Install Guide for Administrators.)  
Use the scroll buttons to the right of the LCD to display:  
Number of drives that are installed  
Available capacity  
Status  
If an alert occurs, or the WD Sentinel server is performing certain operations, the following  
status displays in the LCD:  
Alert  
Description  
Backup Failed  
The server failed to back up a computer. Go to the Dashboard and  
examine the alerts to discover which computer backup failed and why.  
Capacity Low  
Available storage capacity of the WD Sentinel server is low.  
The temperature of one of the drives is too high.  
Drive Overtemp  
Ethernet 1 Disconnected  
Ethernet 2 Disconnected  
Fan Failed  
WD Sentinel server has detected that Ethernet 1 has lost connection.  
WD Sentinel server has detected that Ethernet 2 has lost connection.  
WD Sentinel server has detected that the fan is no longer operational.  
Imminent Drive Failure  
One of the drives is demonstrating imminent failure (discovered through  
Self-Monitoring Analysis and Reporting Technology S.M.A.R.T). Replace  
the drive as soon as possible.  
Initializing  
The RAID system is initializing the storage; this is similar to Verifying.  
Invalid Drive  
A drive that is not approved for use in the WD Sentinel server has been  
inserted.  
Invalid Drive Capacity  
Migrating … %  
A drive with incompatible size was inserted and migration/rebuild could  
not proceed.  
RAID system is migrating to a larger capacity due to the addition of a  
drive.  
Network Disconnected  
Power Supply 1 Failed  
Power Supply 2 Failed  
Reboot  
The server is not connected to the network.  
Power supply 1 has failed or been disconnected.  
Power supply 2 has failed or been disconnected.  
WD Sentinel server will reboot.  
Repairing … %  
RAID system is being repaired to full RAID protection.  
WD Sentinel server is shutting down.  
Shutting Down  
Software Update Available  
A WD Sentinel server update is available. Using the Dashboard, apply the  
update.  
Storage Degraded  
Temperature High  
RAID protection is no longer in place, and a drive needs to be replaced.  
WD Sentinel server has exceed acceptable temperature and will shut  
down.  
Verifying … %  
RAID system was shut down inadvertently. It is validating and correcting  
the integrity of the RAID array.  
11  
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
PRODUCT OVERVIEW  
LEDs  
The LEDs on the Sentinel work in conjunction with the LCD display to further identify the  
status of the unit.  
LED  
Color  
Blue  
State  
Flashing  
Solid  
Description  
Power LED  
WD Sentinel server is currently booting the software.  
Blue  
WD Sentinel server has successfully booted the  
software and is operational.  
Red  
Flashing  
Indicates that a serious fault has occurred and needs  
immediate attention. The LCD displays the fault  
condition.  
Drive LEDs  
Black  
Blue  
Red  
Off  
If the LED is off while other drive LEDs are on, no drive  
is installed in the bay.  
Flashing  
Solid  
Drive is currently active. Note that all lights in a RAID  
system are active at the same time by design.  
Indicates drive failure. The LCD also displays "Storage  
Degraded." Replace this drive as soon as possible.  
The system is no longer RAID protected until the drive  
is replaced and the RAID structure is repaired.  
Ethernet Port  
Left LED (on  
back of server)  
Green/Amber  
Green  
Solid  
The left LED indicates the connection speed of the  
network connection:  
•
•
Green indicates a 1000 Mb connection  
Amber indicates a 100 Mb connection  
Ethernet Port  
Right LED (on  
back of server)  
Blinking  
Indicates link activity.  
12  
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PRODUCT OVERVIEW  
Where to Find Help  
This manual provides step-by-step instructions and other important information regarding  
your WD product. It is meant for the person serving as the administrator of the  
WD Sentinel DX4000. You can download translated versions and updates to this manual  
from http://products.wdc.com/updates. For more information and news about this product,  
visit our website at http://www.wdc.com/.  
Additional Reference  
Description  
Quick Install Guide for Administrators Included in the product box or available at  
http://products.wdc.com/WDSentinel; helps you install the  
WD Sentinel server and gets you started using it.  
WD Online Help  
Specific descriptions and instructions accessed on  
WD-specific (Monitor) pages on the Dashboard.  
Microsoft Online Help  
•
Access detailed explanations and instructions for a particular  
page by clicking the Help button  
Dashboard.  
at the top right of the  
•
•
Search for help on a specific topic or term by entering it in the  
Microsoft Online Help search field at the top right of the page.  
Access the entire Microsoft Online Help system by clicking  
Microsoft Online Help.  
Important: Not all Microsoft Online Help is applicable to the WD Sentinel DX4000.  
The WD Online Help and this Administrator's Guide take precedence over the  
Microsoft Online Help.  
13  
WD SENTINEL DX4000  
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USER ROLES AND RESPONSIBILITIES  
User Roles and Responsibilities  
3
Types of WD Sentinel DX4000 Users  
How the WD Sentinel DX4000 Fits into Your Office  
This chapter reviews how the WD Sentinel server fits into your office and delineates the tasks  
for which the Administrator and Users have responsibilities.  
Types of WD Sentinel DX4000 Users  
At a high level there are two categories of users who need to access one or more features of  
your WD Sentinel server.  
Administrator—This is the person who performs the setup and routine management  
tasks on the WD Sentinel server. This person is also the holder of the Administrator  
password of your WD Sentinel server.  
Users—You can have up to 25 user accounts on your WD Sentinel server. These can  
be:  
-
Internal Users – The internal users are typically the employees (including the Admin-  
istrator) in your office, working locally or occasionally from a remote location (e.g.  
Sales Staff), who need to access business data and server resources.  
-
External Users – The external users are the customers and business  
partners with whom you need to exchange business data.  
The WD Sentinel server offers different paradigms for each type of user. The table below  
provides a view into the usage model and tasks for each category of users.  
External Users  
(e.g., Clients or Business  
Partners)  
Administrator  
(e.g., Business Owner)  
Internal Users  
(e.g., Employees)  
Primary Setup Tasks  
Primary Setup Tasks  
None  
Primary Setup Tasks  
•
•
•
Physically connects the  
WD Sentinel server to the  
network.  
•
•
None  
Configures the  
WD Sentinel server itself. This  
is a one-time procedure.  
Connects a Windows PC to  
the WD Sentinel server by  
installing Connector software  
on it.  
Primary User Interface  
Primary Interface  
Primary Interface  
•
Dashboard - Signs in using the  
Administrator password (no  
username required).  
•
Launchpad - Signs in using the  
assigned user name and  
password.  
•
Remote Web Access - Signs in  
using the assigned user name  
and password.  
Secondary Interface  
•
Remote Web Access -  
While accessing remotely,  
signs in using the assigned  
user name and password.  
14  
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USER ROLES AND RESPONSIBILITIES  
External Users  
(e.g., Clients or Business  
Partners)  
Administrator  
(e.g., Business Owner)  
Internal Users  
(e.g., Employees)  
Dashboard Task Examples  
Launchpad Task Examples  
Remote Web Access Task  
Examples  
•
Sets up user accounts and  
assigns permissions.  
•
Accesses data on shared  
storage.  
•
Accesses data on shared  
storage.  
•
•
Manages shared folders.  
•
•
Starts manual backups.  
•
Accesses media library.  
Sets up and manages  
Launches Remote Web  
Access.  
automatic backup schedule.  
•
Manages WD Sentinel server  
settings, resolves any alerts,  
and monitors server  
Remote Web Access Task  
Examples  
performance.  
•
•
•
Accesses data on shared  
storage.  
•
•
•
Sets up Remote Web Access.  
Manages updates.  
Connects to the PCs in the  
office remotely.  
Creates and manages iSCSI  
targets.  
Accesses media library.  
Note: For each user account, the WD Sentinel server enables the Administrator to set granular permissions  
for various shared folders as well as server resources, such as Remote Web Access. At all times, the  
users are only able to access the data on the server and other server resources for which they have  
permissions.  
How the WD Sentinel DX4000 Fits into Your Office  
15  
WD SENTINEL DX4000  
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MANAGING THE WD SENTINEL SERVER (DASHBOARD)  
Managing the WD Sentinel Server (Dashboard)  
4
Setting up WD Sentinel Server & Connecting Computers  
Accessing the Dashboard  
Performing Dashboard Tasks  
Using the Home Page  
Managing User Accounts  
Managing Computers and Backups  
Managing Server Folders and Hard Drives  
Monitoring Add-ins  
Monitoring System Health and Alerts  
Updating Software  
Managing Server Settings  
Setting up WD Sentinel Server & Connecting Computers  
This chapter assumes you have followed the Administrator's Quick Install Guide to initialize  
the WD Sentinel server and connect computers, and that you are familiar with the  
Dashboard and Launchpad. To review the setup steps, please see the hard copy guide that  
came in the box, or access the soft copy at http://products.wdc.com/wdsentinel.  
Accessing the Dashboard  
To access the Dashboard (Windows):  
1. Click Start or >(All)Program(s) >Windows Storage Server 2008 R2>Windows  
Storage Server 2008 R2 Dashboard.  
2. On the Dashboard Sign in page, enter the Administrator password (created during  
setup) and click the right arrow:  
16  
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MANAGING THE WD SENTINEL SERVER (DASHBOARD)  
To access the Dashboard (Mac):  
1. In the Application folder, select Windows Server Dashboard.  
2. For first time sign-in, enter the server IP address (found on the LED display of your  
server) and the Administrator password (created during setup).  
3. Enter the following information on the Remote Desktop Connection screen:  
User Name: Enter Administrator.  
Administrator Password: The password you created during setup.  
Computer Name: The server name you created during setup.  
The Dashboard appears:  
17  
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MANAGING THE WD SENTINEL SERVER (DASHBOARD)  
The Dashboard Home page displays:  
Navigation icons  
Alerts and Server Settings  
Help icon  
Tabs  
Tasks Pane  
Performing Dashboard Tasks  
The Administrator uses the Dashboard to perform administrative tasks such as creating user  
accounts, setting up access privileges to shared folders and other server resources,  
managing shared folders, and monitoring the WD Sentinel server.  
For information about an additional task, backing up a computer to the WD Sentinel server,  
see “Backing up (Windows PC)” on page 42.  
Using the Home Page  
The main part of the Home page lists some of the recommended tasks to perform the first  
time you sign in to the Dashboard. To perform these tasks from the Home page, just click  
the relevant links. The panel on the right offers easy access to the WD Sentinel DX4000  
community and to WD resources. The rest of this chapter discusses the tasks the  
Administrator can perform on the Dashboard.  
18  
WD SENTINEL DX4000  
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MANAGING THE WD SENTINEL SERVER (DASHBOARD)  
For a full description of the typical components of a page, including the Critical, Warning,  
and Informational Alert icons, see the Microsoft Online Help.  
Home Page Tabs  
The Home page contains four tabs, summarized below:  
Tab  
Description  
Complete basic tasks that will get you started with the  
WD Sentinel server. For information about these tasks, see  
the Microsoft Online Help.  
Home  
Best Practices:  
•
Complete the Getting Started tasks on the Home page of  
the Dashboard.  
•
Create at least one active user account the first  
time you access the Dashboard.  
WD Guardian Services  
Western Digital offers WD Guardian Services for Small  
Business customers. Choose from various technical support  
plans and extended warranty services that work best for your  
business. For more information, visit http://www.wdc.com.  
About  
Displays basic information such as product serial number, IP  
address, and software version.  
Registration  
Allows you to register your server with WD. Once registered  
you will receive notifications of product and firmware  
updates, newsletter, information about new product, and  
services as well as periodic special offers from WD.  
Enter the required information and click Register. Optionally,  
enter the Partner ID of the WD Partner who helped you  
purchase or install your WD Sentinel server.  
19  
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MANAGING THE WD SENTINEL SERVER (DASHBOARD)  
Home Page Tasks Panel  
In the panel on the right of the Home page displays links to useful WD websites and  
resources to make the best of your WD Sentinel server.  
Managing User Accounts  
On the navigation bar, click the Users icon. You can now:  
View, add, manage, delete, and activate/deactivate user accounts.  
Use the guest account  
Manage domain user accounts  
Manage passwords  
Manage Remote Web Access  
Assign user access privileges to shared folders and server resources  
For detailed instructions on performing any of these tasks, consult Microsoft Online Help.  
Managing Computers and Backups  
After you’ve connect your computers to the Windows Storage Server 2008 R2 Essentials  
network, you can manage the computers from a central location in the Computers and  
Backup section of the Dashboard including.  
Viewing a list of computers connected to your server.  
Viewing computer properties and health alerts for each connected computer.  
Setting up and managing computer backups.  
Restoring files and folders to computers.  
For detailed instructions on performing any of these tasks, consult Microsoft Online Help.  
Managing Server Folders and Hard Drives  
The WD Sentinel DX4000 contains two tabs:  
The Server tab allows you to view and manage the properties of the shared folders  
on your server including:  
- Managing your company’s shared folders  
- Accessing shared folders locally or remotely  
- Uploading or download files locally or remotely  
The Hard Drives tab allows you to view and check the health of the drives that are  
attached to your server.  
For detailed instructions on performing any of these tasks, consult Microsoft Online Help.  
20  
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MANAGING THE WD SENTINEL SERVER (DASHBOARD)  
Monitoring Add-ins  
The Add-ins section of the Windows Storage Server 2008 R2 Essentials Dashboard  
includes tasks that help you view and manage the Add-ins that are installed on the server.  
For detailed instructions on monitoring add-ins, consult Microsoft Online Help.  
Monitoring System Health and Alerts  
The Monitor module of the Dashboard includes tasks that help you view and manage the  
WD Sentinel server storage system. To open the Monitor module, click the Monitor icon on  
the navigation bar. The Monitor module includes two tabs, Health and Software Update,  
and related tasks in the panel on the right.  
Health Tab  
The Health tab and related tasks enable you to monitor the status of the storage drives,  
RAID configuration, power supplies, temperatures, fans, CPU, and network connections.  
To open the Health tab, click the Monitor icon on the navigation bar:  
Settings  
Description  
Network Health  
Ethernet 1 & 2  
Displays the status (Connected or Not connected) of the server's network  
connection(s). If you use both Ethernet ports and one fails, the other  
takes over, allowing the WD Sentinel server to remains operational over  
the network.  
21  
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MANAGING THE WD SENTINEL SERVER (DASHBOARD)  
Settings  
Description  
Storage  
Displays storage information associated with the WD Sentinel server. The  
WD Sentinel server holds up to four of WD’s hard drives optimized for  
quality, reliability and performance and features RAID levels 1 or 5 to  
enhance performance and data protection.  
RAID is an acronym for Redundant Array of Independent Disks. With two  
drives installed, the WD Sentinel server uses RAID 1 (mirror). With three or  
four drives installed, the server uses RAID 5, which offers fast  
performance by striping data across all drives. This arrangement protects  
data by dedicating a quarter of each drive to fault tolerance, leaving three  
quarters of the system capacity available for data storage.  
Type: RAID level  
Total Capacity: Maximum amount of storage space (TB) available.  
Available Capacity: Amount of storage (TB) left available for use.  
Alert Threshold: The percentage of storage capacity used above which  
you receive alert notifications that the storage is approaching maximum  
threshold.  
Status: The status of the server storage may be:  
•
•
Healthy–All drives are in the optimal state.  
Degraded–A single drive failed; data is protected, but  
performance is degraded. (A failed drive must be replaced with a  
healthy drive as soon as possible to fully protect your server and  
data.)  
Status of drives 1-4: The status of a drive may be:  
•
•
Normal  
Failed!: Visit WD Store to replace.  
CAUTION: Imminent failure detected. Please replace this hard drive  
immediately.  
System Temperature  
Enclosure: The temperature within the server enclosure.  
CPUs 1 & 2: The Temperature, status, and status description for each  
CPU. (The server does not have two physical CPUs but instead uses a  
dual core CPU. CPU 1 and CPU 2 represent the details for each core.)  
The status may be:  
•
•
•
Normal  
Warm  
Hot  
Cooling Fans  
The status of the server’s cooling fan may be:  
•
•
Active  
Inactive  
Speed of revolutions in RPMs.  
Power Supplies  
1 & 2  
The server has two power supplies. If you use both and one fails, the  
other takes over and the WD Sentinel server remains operational. The  
status may be:  
•
•
Active  
Inactive  
22  
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MANAGING THE WD SENTINEL SERVER (DASHBOARD)  
Health Tasks  
Find compatible hard drives  
To view a list of WD drives that can be used in the WD Sentinel server:  
1. Click Compatible Hard Drives in the Task pane. A pop-up screen lists each drive with  
its model number, description, and maximum capacity.  
2. If desired, click the WD Store button to view or buy additional drives.  
3. To exit, click OK.  
Request Support  
The Request Support function collects information about your WD Sentinel and sends a  
diagnostic report to the WD Support server. It then opens the WD Support website, where  
you can enter a few details regarding the problem to route it to the appropriate support  
team.  
Note: If you do not want to submit the diagnostic logs, use the regular  
WD Support page at http://support.wdc.com.  
To access WD Customer Support automatically:  
1. Click Request Support in the Tasks pane. The Request Support window displays.  
2. After reading the information on the screen, click the “I agree and would like to proceed.”  
checkbox, then click Proceed. The WD Support Ask a Question page displays.  
Note: The first time you do this, an Internet Explorer Security Screen displays. Clear  
the check box and click Close.  
3. Complete the online form and click Submit Question. A diagnostic report of the  
WD Sentinel server is automatically attaches to the form. Your request is added to the  
WD Support queue and assigned a confirmation number. You will receive an email from  
WD Support regarding your question.  
Important: For faster service/phone service, call WD Support. For the latest phone  
numbers and contact information in your region, see “Contacting WD  
Technical Support” on page ii or http://support.wdc.com. Have your  
confirmation ready when you call.  
Lock/Unlock  
For security reasons, you can lock or unlock the drives. You cannot lock or unlock an  
individual drive; you either lock them all or unlock them all, using a password you create  
here. This password may be but does not have to be the same as the WD Sentinel server  
Administrator password.  
Important: Store your password in a secure place. If the password is lost, there is no way  
to get it back or unlock the drives, and all of its data may be lost.  
23  
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MANAGING THE WD SENTINEL SERVER (DASHBOARD)  
To lock the drives:  
1. Click Lock drives.  
2. In the New Password field, Enter your password.  
3. In the Confirm Password field, confirm your password,  
4. In the Password Hint field, enter a hint to remind you of the password.  
5. Click OK.  
To unlock drives:  
1. Click Unlock drives.  
2. In the Old Password field, enter your password.  
3. Click Unlock drives.  
To change the password:  
1. Click Unlock drives.  
2. In the Old Password field, enter the current password.  
3. In the New Password field, enter your new Password.  
4. In the Confirm Password field, confirm your new password  
5. In the Password Hint field, enter a hint to remind you of the password.  
6. Click OK.  
Updating Software  
Periodically, WD issues software updates for your WD Sentinel DX4000 server. When a  
software update is available, the LCD on your WD Sentinal displays the following message:  
Software updates available.The Software Update tab within the Monitor module allows  
you to update WD Sentinel DX4000 software automatically or manually. Please note that this  
tab only allows you to apply software updates issued by WD. To manage or apply Microsoft  
software updates, go to Server Settings on the Dashboard.  
Manual Updates of WD Software  
To check for software updates and update the software:  
1. Click the Software Updates tab.  
24  
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MANAGING THE WD SENTINEL SERVER (DASHBOARD)  
2. You have two options. You may check for updates online or update from a file:  
To use the online update:  
a. Click Check for Updates.  
b. If an update is available, click Download and Install to update your  
WD Sentinel server.  
To update from a file:  
a. The software update files can also be downloaded from the WD Support site at  
http://support.wdc.com. Once you download the available firmware updates for the  
WD Sentinel DX4000 server, copy the file to a shared folder such as the Documents  
share on the server and select the file to update.  
b. Click Update from file and then locate and select the update file you copied to your  
server.  
c. Click Open. The system applies the software update. The system automatically  
restarts the server if a reboot is required to complete the software update.  
Automatic Updates of WD Software  
Enabling Automatic Updates on your WD Sentinel server causes the server to check  
for available software updates from WD on a scheduled basis and apply the updates  
automatically.  
To set a schedule for automatic updates:  
1. In the Automatic Updates section, click Enable.  
2. Click the Change link and select the day and time you want the WD Sentinel server to  
check for updates every week, and if an update is available, install it. (Example: every  
Sunday at 3:00 AM)  
3. Click Apply.  
Updating Microsoft Software  
You can update the Microsoft software for the WD Sentinel DX4000 using the Server  
Settings page. See “Managing Server Settings,” below.  
Managing Server Settings  
Important: Unless otherwise noted, Microsoft Online Help provides complete instructions  
for using these pages.  
1. Click Server Settings on the icon bar to enable, set up, and control WD Sentinel server  
settings.  
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2. The General page displays. The left panel contains links to the rest of the Server Settings  
pages.  
Following is a summary of the purpose of each of the Server Settings pages.  
General  
Shutdown or restart the server—This is the safest method to shut down or  
restart the server. It insures that the RAID system shuts down cleanly. See “” on page  
27 for instructions.  
Change the date, time, and location of the server—You can change the  
settings you established at initialization.  
Change the behavior of the Microsoft update—You can change the settings for  
updating the Microsoft software.  
Media  
Enable or disable media (DLNA) services, set the video streaming quality, and define the  
folders to be used for the media. By default, media service is enabled, and the default  
Picture, Music, and Video folders are set to distribute the media.  
HomeGroup  
When creating a HomeGroup, establish which folders are to be shared through the  
HomeGroup. Note that HomeGroup is only available for Windows 7 clients.  
Remote Web Access  
With Remote Web Access enabled, you can access the WD Sentinel server from any device  
using a web browser, such as Internet Explorer, from anywhere with Internet access. You  
can access shared folders and files (that you have permission for) on the server as well as on  
your networked computer.  
26  
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Enabling Remote Web Access  
Enable or disable Remote Web Access on the Server Settings page. Remote Web Access is  
turned off by default.  
Note: The Home page provides a Getting Started task for enabling Remote Web  
Access by clicking link to the process.  
1. Under Server Settings, click Remote Web Access in the panel on the left.  
2. Click Turn on and complete the wizard to set up your router, set a domain name, and  
change Internet settings.  
3. Grant Remote Web Access privileges if you want a user to access the  
WD Sentinel server, shared folders, computers, media, Home page links, and the  
Dashboard (administrators only) when you create or update a user account.  
To view a user’s current privileges, click the Users icon in the Navigation bar.  
Note: The Guest account cannot have Remote Web Access.  
Note: Refer to Microsoft Online Help for detailed information about setting up  
remote web access and for troubleshooting connection issues.  
Domain  
This option is available for networks that have an Active Domain server for user control. A  
domain is a group of computers under the control of a server known as the domain  
controller. In the case of the Sentinel DX4000, it enhances security by allowing only users  
with necessary permissions to access the server. Refer to Microsoft Online Help for detailed  
information. For information on acceptable domains, go to http://support.wdc.com and  
search for Knowledge Base Answer ID 8549.  
27  
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Shutting Down the Server  
The WD Sentinel server is intended to be on at all times, providing shared data and backup  
services. A best practice is to avoid turning the unit off. However, if it does become  
necessary (for example, moving the server to a different location), then follow the procedures  
below.  
It is very important that the WD Sentinel server be shut down or restarted in a clean and  
graceful manner. There are two ways to do this:  
Through the Server Settings section in the Dashboard  
Through the power switch on the front panel of the server.  
WARNING! To avoid a potentially unclean shutdown that could corrupt the RAID  
configuration, shut down the server through the Dashboard rather  
than the front panel.  
To shut down or restart using the Dashboard (Preferred method):  
1. Click Server Settings in the icon bar.  
2. To shut down, right-click the red button in the lower left corner of the page and select  
Shut down.  
3. To restart, right-click the arrow and select Restart.  
4. When the confirmation message appears, click Yes.  
To perform a clean shutdown using the front panel:  
1. Press the power button for approximately ½ sec. (You may have to press it twice  
quickly.) The LCD displays “SHUTTING DOWN.”  
Note: In the event that the two methods above fail and you must force the unit off,  
hold down the power button for more than 3 seconds. The server powers off.  
When you turn it back on, the server executes a verification background task  
of the entire RAID system. This process may take a long time and degrade  
the performance. The unit is operational under this condition.  
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Managing Storage on the WD Sentinel Server  
5
WD Sentinel Server RAID Storage  
Using USB Storage  
Replacing a Failed Drive  
Adding Capacity by Adding a Drive  
WD Sentinel Server RAID Storage  
RAID is the acronym for Redundant Array of Independent Disks. The WD Sentinel server  
provides automatic RAID service to assure the integrity of the storage system. For  
redundancy, a minimum of two drives must be active. The operating system and all data are  
protected by the RAID structure. The server automates the management of the RAID.  
With two drives installed into the system, RAID 1 (mirror) is employed. With three or four  
drives installed, RAID 5 offers fast performance by striping data across all drives, These  
RAID levels provide the system with both redundancy and optimum capacity.  
2 TB Drives  
2 TB Capacity  
4 TB Capacity  
6 TB Capacity  
3 TB Drives  
3 TB Capacity  
6 TB Capacity  
9 TB Capacity  
RAID Level 1 (2 Drives)  
RAID Level 5 (3 Drives)  
RAID Level 5 (4 Drives)  
If a drive in the array fails, the data and operating system are still intact, and the  
WD Sentinel server continues to provide service.  
Important: If you have one bad drive, the server operates normally. However, if a  
second drive fails, the server will no longer operate. You will need to  
recover the server and/or replace the failed drive(a). A best practice is  
to have a replacement drive readily available.  
The WD Sentinel server lets you know when a drive fails in the following ways:  
The message "STORAGE DEGRADED" appears on the WD Sentinel server LCD.  
The LED above the bad drive is solid red.  
The Power LED on the WD Sentinel server flashes red, indicating a serious fault.  
An email Alert is posted if you have set it up to do so. (See “Monitoring System  
Health and Alerts” on page 21.)  
To recover from a failed drive, simply replace the drive (the one with the red LED over the bay  
door) with an approved drive for the WD Sentinel server (see “Find compatible hard drives”  
on page 23). The WD Sentinel server validates the replaced drive and automatically  
integrates it into the RAID array. This operation takes many hours to accomplish. Progress of  
this operation appears on the display as well as on the Dashboard. It is not necessary to  
power off or disengage the WD Sentinel server to perform this operation. While the server is  
verifying the RAID array, your data continues to be available although the performance may  
be impacted.  
The WD Sentinel server RAID system has no downgrade options. Once available capacity  
has been increased, the Administrator cannot decide to subsequently reduce capacity by  
removing a drive. The removal of a drive degrades the RAID and makes it vulnerable to  
single drive failure.  
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Using USB Storage  
On the back of the WD Sentinel server are two USB 3.0 ports that can connect to external  
USB 2.0 or USB 3.0 storage devices or to a UPS device for power outage conditions. For  
example, WD Passport or WD Essentials may be used to connect to the WD Sentinel server.  
You can share this data on your USB drive with other users connected to the server by using  
the Dashboard, which treats the USB drive as a share. You can set user privileges just as  
you do with shared folders on the WD Sentinel server’s drives. The server manages UPS  
capability through a USB port for communication and to ensure an orderly shut down.  
USB Ports  
To share data on a USB drive:  
1. Connect a USB drive to either of the two USB ports.  
2. On the Dashboard, click the Servers Folders and Hard Drives icon.  
3. Click the Server Folders tab.  
4. In the Task bar, click Add a folder.  
5. Enter a name for the folder.  
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6. Click Browse and select a folder on the USB drive. Note that a shared folder cannot be  
created at the root of the USB drive.  
7. Click OK and follow the instructions on the screen.  
To stop sharing data on a USB drive:  
1. On the Dashboard, click the Servers Folders and Hard Drives icon.  
2. Click the Server Folders tab, then select the folder you want to stop sharing.  
3. On the Task bar, click Stop sharing the folder.  
4. Click Yes, then click Close.  
Replacing a Failed Drive  
It is simple to replace a failed drive in your WD Sentinel server. First, make sure to go to the  
WD Store to purchase a compatible replacement drive. For a complete list of approved drive  
models, search for Answer ID 9443 in the WD Knowledge Base at http://support.wdc.com.  
The drives in the WD Sentinel server are “hot swappable.” This means that the  
WD Sentinel server can remain powered on while you replace the drive. Once you replace  
the drive, the WD Sentinel server automatically reconfigures the RAID. (See “Find compatible  
hard drives” on page 23.)  
Use the following steps to replace a failed drive in your WD Sentinel server.  
1. Verify that the LED for the bad drive is solid red.  
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2. Open the door on the front of the server.  
3. Unlatch the handle on the front of the drive.  
4. When it snaps open, pull out the drive.  
5. Slide the replacement drive into the drive bay, making sure it is seated properly. and that  
it is facing the right way.  
6. Using some force, snap the handle shut.  
7. Close the door on the front of the server, making sure it snaps shut. The LED remains  
blank until the rebuild is complete. The rebuild percentage displays on the LCD.  
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Adding Capacity by Adding a Drive  
To increase capacity, simply insert an additional drive into the system. The system does not  
have to be turned off or disengaged from its work to do this. The WD Sentinel server  
automatically recognizes the drive, checks to see if the drive is approved for use in the  
WD Sentinel server, and reconfigures the RAID to accept the new drive. At the completion of  
this reconfiguration, the additional capacity is automatically available to the system. No  
further operation is required.  
Note: The additional drive must have a minimum available capacity of the smallest drive in  
the array. For example, a 3 TB drive may be added to an array made up of 2 TB  
drives, but a 2 TB drive may not be added to an array composed of 3 TB drives.  
Use the following steps to add a drive to your WD Sentinel server.  
1. Open the door on the front of the server.  
2. Unlock the handle on the empty drive bay and insert the drive into the bay, making sure  
it is facing the right way and is seated properly.  
3. Using some force, snap the handle shut.  
4. Close the door.  
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Using the WD Sentinel Server’s Features  
6
Using the Launchpad (Internal Users)  
Accessing Shared Folders Over Your Network  
Accessing Computers and Shared Folders Remotely  
Backing up (Windows PC)  
Recovering/Restoring (Windows PC)  
Recovering/Restoring (Windows PC)  
Recovering the WD Sentinel Server  
This chapter describes the routine tasks that both the Administrator and permitted users  
perform on the WD Sentinel server.  
Using the Launchpad (Internal Users)  
After you, the Administrator, use the Dashboard to set up users with a user name,  
password, and permissions, they can access the Launchpad Sign-in page using one of the  
following methods:  
Best Practice: Ideally, you set up a user name and password for yourself and given it all  
access privileges so you too can use the Launchpad shortcuts.  
Accessing the Launchpad  
To access the Launchpad (Windows):  
1. Do one of the following:  
Click Start (  
)>(All) Program(s) >Windows Storage Server 2008  
R2>Windows Storage Server 2008 R2 Launchpad.  
Double-click the Launchpad icon  
.
Right-click the Launchpad icon  
in your system tray and select Open  
Launchpad.  
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2. Enter your user name and password.  
3. Click the right arrow to display the Launchpad, which lists four tasks that authorized  
users can perform: Backup, Remote Web Access, Shared Folders and Dashboard.  
Note: The Dashboard option is only useful to a user with Administrative privileges  
and knowledge of the Administrator password.  
To access the Launchpad (Mac):  
1. Do one of the following:  
Double-click the Launchpad icon on your Mac Toolbar.  
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Select Finder>Applications>Windows Server Launchpad  
Once you’ve accessed the LaunchPad Sign In screen, use the following steps to sign in and  
use the Launchpad.  
1. Enter your user name and password.  
2. Click the arrow to display the Launchpad. It lists four tasks: Backup, Remote Web  
Access, Shared Folders, and Add-ins.  
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Selecting Launchpad Options (Windows PC or Mac Computer)  
To select Launchpad options:  
IF you want to . . .  
THEN . . .  
AND ...  
Back up your Windows PC  
to the WD Sentinel server  
manually  
Click Backup  
Click Backup  
Continue to “Backing up (Windows  
PC)” on page 42.  
Back up your Mac to the  
WD Sentinel Server using  
Time Machine.  
Continue to “Backing up with Time  
Machine (Mac)” on page 45.  
Use Remote Web Access:  
Click Remote Web  
Access  
Continue to “Remote Web Access” on  
page 26 and “Accessing Computers  
and Shared Folders Remotely” on  
page 41.  
•
Enable remote web  
access for users with  
Remote Access  
Privileges.  
•
•
Access the server from  
a remote location (all  
users)  
Change a user  
password (by the user)  
Access shared folders on  
the server  
Click Shared Folders  
Click Dashboard  
Continue to “Accessing Shared Folders  
Over Your Network” on page 40.  
Manage the server  
(Windows PCs and  
Administrators only)  
Enter the Administrator password and  
continue to “Managing the WD Sentinel  
Server (Dashboard)” on page 16.  
Manage the server (Mac  
and Administrators only)  
Click Add In, then  
click Dashboard.  
Enter User Name (Administrator) and  
Password (The password you created  
at setup), then continue to“Managing  
the WD Sentinel Server (Dashboard)”  
on page 16.  
Managing the Launchpad  
To disable the Launchpad after signing in (Windows):  
1. Sign in to the Launchpad.  
2. Click the menu arrow at the top right and select Settings from the drop-down menu.  
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3. Clear the Automatically run the Launchpad when I log on to Windows check box,  
and click OK.  
Note: You can also change the type of alerts that display on the Launchpad and  
select whether to allow Microsoft to send you information about it in this  
window.  
To disable the Launchpad after signing in (Mac):  
1. Sign in to the Launchpad.  
2. Click the menu arrow at the top right and select Settings from the drop-down menu.  
3. Clear the Automatically run Windows Server Launchpad when I log in check box,  
and click the Close button  
.
You can also change the type of alerts that display on the Launchpad selecting whether to allow  
Microsoft to send you information about it in this window, and setup your Time Machine backups.  
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To uninstall the Launchpad (Connector Software) on a Windows PC:  
Note: When you uninstall Launchpad, you also uninstall Dashboard. They can not  
be uninstalled separately.  
1. Click Start, click Control Panel, and in the Programs section, click Uninstall a  
Program.  
2. From the list, select Windows Storage Server 2008 R2 Connector.  
3. Click Uninstall.  
If the User Account Control window displays, click Allow.  
If the Windows Storage Server 2008 R2 Essentials Connector page displays  
suggesting that you close the Launchpad, click OK.  
Note: You must reboot the computer before installing another Connector.  
To uninstall the Launchpad (Connector Software) on a Mac:  
You must uninstall Launchpad from three Macintosh HD folders: Users, Applications, and  
Library.  
1. Quit the Launchpad.  
2. In the Finder pane, click Applications. Drag and drop Windows Server Launchpad  
into the Trash icon. The Launchpad icon no longer appears in the dock.  
3. Click Finder>Devices>Macintosh HD.  
4. Click Library>Application Support>Microsoft. Drag and drop Launchpad into the  
Trash icon.  
5. Click Library>Preferences. Drag and drop “com.microsoft.launchpad.plist” into the  
Trash icon.  
6. Right-click the Trash icon and select  
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Accessing Shared Folders Over Your Network  
Launchpad (Windows)  
1. On the Launchpad, click Shared Folders. A set of folders similar to the one below  
displays:  
2. Double-click a folder to open it, then click the file you want to access. Your access (as a  
general user) depends on the permissions assigned to you by the Administrator.  
Launchpad (Mac)  
1. On the Launchpad, click Shared Folders.  
2. Select the shared folder you’d like to mount on your mac, then click OK.  
If all shared folders are mounted on your Mac, click Cancel, then open Finder. Click  
the IP Address of your WD Sentinel under Shared to display your Shared Folders.  
3. The selected shared folder displays on your desktop.  
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Accessing Computers and Shared Folders Remotely  
This section assumes that the Administrator has completed the setup and configuration for  
Remote Web Access through the Dashboard.  
You can access files stored on the WD Sentinel DX4000 anywhere, as long as you have  
access to the Internet.  
Note: You must use Internet Explorer 8 or 9 to access a PC using the Remote Web  
Access feature. See “Specific Problems and Corrective Actions” on page 62.  
Logging In  
1. On the Launchpad, click Remote Web Access or on a web browser, enter the domain  
address for your WD Sentinel server. This is the domain address the Administrator  
configured while setting up Remote Web Access on your WD Sentinel server. The  
following web page displays in your browser.  
2. Enter your WD Sentinel server user name and password, then click the arrow to display  
the Remote Web Access: Home for User window:  
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Remote Web Access Home Page  
The Remote window includes the following sections:  
Note: You can also use the navigation links at the top of the window to view these  
sections.  
Computers  
Note: Connecting to computers or the WD Sentinel server using Remote Web  
Access requires the Internet Explorer browser.  
Click Connect to connect to your WD Sentinel server or to a computer on your  
network.  
-
If the Internet Explorer you are using does not have Active X Client, click OK to  
install it, then complete the wizard.  
Shared Folders  
Access shared folders on the WD Sentinel server. The folders may include Documents,  
Pictures, Music, Video, Recorded TV, and any additional shared folders the Administrator  
may create using the Dashboard. A user with "Read & Write" access to a particular shared  
folder is able to modify the contents of the existing files, upload new files, or delete files from  
the folder.  
Note: Only the folders for which the user has permissions are displayed under  
Shared Folders on Remote Web Access.  
Media Library  
Browse through your pictures, music, videos, and recorded videos. The WD Sentinel server  
automatically discovers the media files and adds them to your media library. The built-in  
media capabilities allow you to view your pictures in a slideshow, steam digital music, or  
stream videos over the web.  
Backing up (Windows PC)  
The WD Sentinel server backup is based upon block level de-duplication, a process that  
backs up data without unnecessarily backing up the same data more than once. This  
powerful process uses less network traffic for execution, provides a full back-up at each  
backup time (although it behaves as if it is incremental), and by executing de-duplication  
across all client computers, the storage capacity requirements are significantly reduced.  
Backup becomes an automatic process for a computer once you install Connector software  
on it. With Connector software installed, all volumes and all NTFS data on that computer are  
backed up.  
Note: For information on backing up your Mac using Time Machine, See “Backing up with  
Time Machine (Mac)” on page 45.  
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Scheduling Automatic Backups (Dashboard only)  
To set a schedule for future backups:  
1. Access the Dashboard.  
2. Click the Computers and Backups icon on the navigation bar to display a list of  
computers and servers on your network:  
3. Click Additional client computer backup tasks in the task panel.  
4. Enter the Start time and End time for daily backups and click OK.  
Initiating Backups  
By default, backups are performed at night for up to 25 client computers in a sequential  
order. If the client computer is asleep or hibernating at that time, the backup software can be  
enabled to wake up the client computer, back it up, and put it back to sleep.  
You may start a backup either through the Launchpad on the computer being backed up  
or through the Dashboard.  
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Backup Using the Launchpad  
Note: For information on accessing the Launchpad, see “Using the Launchpad  
(Internal Users)” on page 34).  
1. On the Launchpad, click Backup. The Backup Properties page displays:  
2. Click Start backup.  
3. Enter a name for the backup and click OK:  
The Backup Properties page re-displays and tracks the progress of the backup.  
Note: If you want the computer to automatically wake up for scheduled backups,  
select the check box.  
4. Click OK to apply the change, close the page, and return to the Launchpad while the  
backup continues.  
The message that the backup was successful displays on the page and on the  
Dashboard. For more information about the backup process, see Microsoft Online Help.  
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Backup Using the Dashboard  
1. Click the Computers and Backups icon on the navigation bar to display a list of  
computers and servers on your network:  
2. Select the computer you want to back up.  
3. Click Start a Backup for the Computer in the Task pane. For further instructions, see  
Microsoft Online Help.  
Backing up with Time Machine (Mac)  
For Mac users, Time Machine allows you to backup data to your WD Sentinel server. Time  
Machine automatically backs up your entire Mac, including system files, applications,  
accounts, preferences, email messages, music, photos, movies, and documents.  
Note: Time Machine keeps hourly backups for the past 24 hours, daily backups for the  
past month, and weekly backups until your backup drive is full.  
For additional information on Time Machine, consult your Apple documentation.  
Note: For information on backing up your PC, See “Backing up (Windows PC)” on  
page 42.  
Scheduling Automatic Backups (Time Machine)  
To set up and schedule Time Machine to back up files to your WD Sentinel server:  
1. Use one of the following methods to open Time Machine.  
Click the Time Machine icon in the Dock:  
Click the Apple menu  
Click Go > Applications and select Time Machine.  
> System Preferences and select Time Machine.  
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2. If this is your first time creating a backup, the following screen displays:  
3. Click Set Up Time Machine to display the Time Machine Preferences screen:  
4. Click Select Disk and select the WD Sentinel server for your backups:  
5. Click Use Backup Disk. A screen prompts for your user name and password.  
6. Select Registered User.  
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7. Enter your assigned WD Sentinel User Name and Password in the Name and Password  
fields:  
8. Click Connect. The Preferences screen returns.  
9. To start automatic backups, move the slider to ON.  
Time Machine begins backing up your files. The first backup may take some time, but  
subsequent backups are faster because Time Machine only backs up new or changed  
items.  
Time Machine backs up your computer every hour and keeps the following backup sets:  
Every hour for 24 hours  
Every day for the past month  
Weekly until the WD Sentinel drive is full.  
Note: If a backup is interrupted, for example, if the computer goes into sleep mode,  
it will resume automatically once the computer is available.  
To see information such as available capacity and the date and time of the oldest, latest, and  
next backup, select Open Time Machine Preferences on the Time Machine drop-down  
menu:  
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Recovering/Restoring (Windows PC)  
The WD Sentinel server provides two options for recovering lost or corrupted data:  
Restore a Computer—Restores all the data and settings of a Windows PC  
computer or a storage device connected to the WD Sentinel server.  
Recover File/Folders —Recovers individual files or folders.  
Note: For information on recovering/restoring data on your Mac using Time Machine, See  
“Recovering/Restoring (Mac)” on page 49.  
Restoring Windows PC Computers (Bare Metal Restore)  
This feature restores a Windows PC connected to your WD Sentinel server. Should your  
computer experience an unfavorable event such as a hard drive crash, the Recovery feature  
reinstalls the operating system, software applications, and all the data. This type of recovery  
is known as a bare-metal restore; it recovers everything that was on the computer when it  
was backed up.  
Best Practice: You may need some network drivers. Save them to a USB flash  
drive.  
To restore a Windows PC that has been backed up:  
1. Click Computers and Backups  
on the navigation bar.  
2. Select the computer that was backed up.  
3. Insert a USB flash device into one of the WD Sentinel server’s USB ports.  
4. In the panel on the right, click Additional Client Computer Backup Tasks and then  
Tools:  
5. Click Create Key to generate a bootable USB flash key (configuration file) on the  
connected USB flash drive. You will use the key to boot the PC and download the  
backed-up system. Follow the wizard to complete the process.  
6. Remove the USB flash drive from the WD Sentinel server and connect it to the computer  
you want to restore.  
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7. Boot the Windows PC from the USB flash drive:  
a. Start the computer.  
b. Depending on your computer, press F12 or another key that displays boot options.  
c. From the Boot menu, select USB Device.  
d. On the Windows Boot Manager, select a Windows operating system for a full-system restore.  
The Full System Restore wizard Welcome screen displays.  
-
If a message indicates that you do not have the correct network card driver,  
insert the USB flash drive with the driver into another USB port on the Windows  
PC, and follow the steps in the wizard to restore the computer.  
-
If you do have the correct driver, click Continue and complete the steps in the  
wizard to restore the computer.  
Note: Refer to Microsoft Online Help for additional information.  
To recover individual files and folders:  
1. Click the Computers and Backups icon and select the computer from which you  
would like to recover the backup files.  
2. In the Task panel, click Restore Files or Folders for the Computer. The server  
displays a list of your backups.  
3. Select the backup that has the files and folders you want to restore and click Next.  
4. Follow the wizard to select the files and folders and recover them to your computer. See  
Microsoft Online Help for additional information.  
Recovering/Restoring (Mac)  
Time Machine allows you to restore files, versions of files, or your entire system. For  
additional information on recovering or restoring your system files, consult your Apple  
documentation.  
Note: For information on recovering/restoring data on your PC, See “Recovering/Restoring  
(Windows PC)” on page 48.  
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1. On the Launchpad, click Backup. Your Time Machine backups display.  
2. Select the date you’d like to restore to from the time line on the right of the screen.  
3. Click Restore in the bottom right-hand side of your screen.  
Recovering the WD Sentinel Server  
This feature recovers your WD Sentinel server, a process that may be necessary in case the  
server has a virus that cannot be deleted, bad or corrupted server configuration settings  
prevent you from starting the server, or the system drive(s) failed.  
Best Practice: You may lose some of your data, depending on the type of recovery you  
perform.  
Requirements  
Virtual DVD software  
Note: Free virtual DVD software is available on the internet. See “Create a Virtual  
DVD” on page 50.  
USB flash drive, 16 GB or larger  
Windows PC  
DVD burner or DVD emulation software  
Note: Free DVD emulation software is available on the Internet. For more information  
on emulation software, see Knowledge Base Answer ID 8561.  
Create a Virtual DVD  
WARNING! WD does not assist in the installation of third party programs such as  
a Virtual DVD. The information provided below is to assist customers  
with the creation of a recovery disk for a WD Sentinel DX4000.  
Western Digital is not responsible for any damage to your computer  
or data resulting from using third party software.  
1. Download the Server Recovery ISO file and save it to a preferred location on your  
computer.  
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2. Download and install a virtual DVD software program. Available virtual DVD programs  
include:  
PowerISO (http://www.poweriso.com/)  
Virtual CloneDrive (http://www.slysoft.com)  
3. Following your third-party software instructions, mount the Server Recovery ISO to a  
virtual DVD.  
Run the Virtual DVD  
1. Mount the Recovery DVD into your computer following the instructions for your virtual  
DVD software.  
If you are running Windows Vista/Windows 7, click Run Setup.exe on the window  
that displays:  
If you are running on a Windows XP computer, by clicking Setup.exe under My  
Computer.  
2. After the application runs, a Server Recovery Utility window appears with three options:  
Unlock my drives  
Recreate my storage  
Perform a recovery  
These options are explained below.  
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Unlock my drives  
Unlock my drives unlocks the WD Sentinel server’s drives if they are locked. (See “Lock/  
Unlock” on page 23.) Before starting any recovery process, unlock the drives with an unlock  
key.  
To create an unlock key:  
1. On the Server Recovery Utilities window, click Unlock my drives.  
2. Click Next and enter the password previously set to lock the drives. Keep in mind that  
this password is not the WD Sentinel server’s Administrator password. It is the locked  
drives password (see “Lock/Unlock” on page 23). If the Administrator password was  
used to lock the drives, enter it here.  
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3. Insert the USB flash drive into the Windows PC USB port. The USB flash drive should  
appear in the Select USB flash drive drop-down list.  
4. If the USB flash drive is not on the list, click Refresh and search for it.  
5. After locating the USB flash drive, click the “I understand...” check box to indicate that  
you know the process will delete all files and folders on your USB flash drive.  
6. Click Next to display the “Congratulations and Next Steps” page.  
7. Follow the steps listed on this page:  
a. Shut down the WD Sentinel server.  
b. Insert the USB flash drive into one of the server’s USB ports.  
c. Restart your server while pressing and holding the Recovery button on the back of the  
server.  
d. Continue to hold the Recovery button until the LCD displays "INITIALIZING OK. LOADING  
RECOVERY." Release the Recovery button.  
e. Allow the recovery process to complete. When it is done, the LCD displays "UNLOCK  
DRIVES SUCCESS."  
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Recreating the storage  
The “Recreate my storage” option recreates the storage partition and RAID for your  
WD Sentinel server.  
WARNING! Only use this option if you are replacing all drives or if the partition or  
RAID is corrupted. This option may delete user data.  
1. On the Server Recovery Utilities page, click Recreate my storage.  
2. Click Next. The Recreate Storage page displays:  
3. Read the caution and click the check box to indicate you know the process may erase  
the data on the WD Sentinel server’s drives while it recreates the server’s configuration.  
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4. Insert the USB flash drive into the USB port of the Windows PC, and click Next to  
display the following page for using the USB key:  
5. The USB flash drive should appear in the Select USB flash drive drop-down list. If the  
USB flash drive is not on the list, click Refresh and search for it.  
6. After locating the USB flash drive, click the check box acknowledging that you know that  
when you click Next, all files and folders on the USB flash drive will be deleted.  
7. Click Next. A progress bar displays while the USB flash drive is being prepared.  
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8. Upon completion of the process, the Recreate Storage page displays:  
9. Follow the instructions under Next Steps:  
a. Shut down the WD Sentinel server.  
b. Insert the USB flash drive into one of the server’s USB ports.  
c. Restart your server while pressing and holding the Recovery button on the back of the  
server.  
d. Continue to hold the Recovery button until the LCD displays "INITIALIZING OK. LOADING  
RECOVERY." Release the Recovery button.  
e. Allow the recovery process to complete. When it is done, the LCD displays "STORAGE OK."  
10. When the process is done, the server’s LCD displays “STORAGE OK.” Click Finish.  
Performing a Recovery  
This option enables the Administrator to restore the server to factory defaults with or without  
deleting all contents stored on the WD Sentinel server.  
1. On the Server Recovery Utilities window, click Perform a recovery:  
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2. Click Next. The Getting Started page displays:  
3. Read the information on the screen.  
If you have previously created a bootable recovery USB flash drive, click the Skip  
creating the bootable USB flash drive check box and continue to Step 9.  
Click Next. The Create a bootable USB flash drive for server recovery screen displays:  
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4. Insert the USB flash drive into the USB port of the Windows PC, and click Next.  
The Prepare the USB flash drive for server recovery screen displays.  
5. The USB flash drive should appear in the Select USB flash drive drop-down list. If it is  
not on the list, click Refresh and search for it.  
6. After locating the USB drive, click the check box to acknowledge that you know clicking  
Next will delete all files and folders on the USB flash drive.  
7. Click Next. The Preparing the USB flash drive for server recovery screen displays.  
8. The recovery application on the DVD prepares the USB drive. This process can take up  
to 15 minutes to complete. After the USB drive preparation is done, the Start your server  
in recovery mode screen displays.  
9. Follow the additional instructions that appear on the screen to guide you through the  
recovery process:  
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a. Shut down the WD Sentinel server.  
b. Insert the USB flash drive into one of the server's USB ports.  
c. Restart your server while pressing and holding the Recovery button on the back of the  
server.  
d. Continue to hold the Recovery button until the LCD displays "INITIALIZING OK. LOADING  
RECOVERY." Release the Recovery button.  
e. Wait until the LCD displays "RECOVERY STARTED."  
10. Return to the PC and follow the instructions by clicking Next. Make sure the PC is on  
the same network as the WD Sentinel server. The application searches for the  
WD Sentinel server and performs the final recovery. When the recovery is done, the  
default display (WDSentinel and IP address) appears on the LCD. For more information,  
see Microsoft Online Help.  
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BEST PRACTICES  
Best Practices  
7
Setting up the WD Sentinel DX4000  
Setting up Client Computers  
Using the WD Sentinel DX4000 Efficiently  
Replacing Drives  
Shutting Down  
The following practices help you use the WD Sentinel DX4000 and protect your data  
efficiently and safely.  
Setting up the WD Sentinel DX4000  
Change the default name of WD Sentinel to something unique. This avoids conflicts  
when another WD Sentinel server is added to your network in the future.  
Make sure Ethernet 1 and Ethernet 2 are on the same network subnet.  
Add the server to your domain. This allows users to use the same login and  
password for both the Launchpad and their computer.  
If you decide to lock the drives, make sure the password is stored in a safe place.  
Set user password policy to at least medium security.  
Enable Microsoft Automatic Updates to find and apply the latest Microsoft software  
update.  
Enable WD Automatic Updates to find and apply the latest WD software update.  
Set up Automatic Alert Notification for real-time notifications of any problems with  
the WD Sentinel server.  
Set up Remote Web Access using Ports 443 and Port 80. If your router or IP  
provider blocks these ports, you may need to consult with your IP provider for  
assistance.  
Do not remove the Windows page file! Some critical functions use the system’s  
paging file. Removing the page file can potentially leave your system unusable with  
the possibility of data loss. To maintain the reliability of your system and its redundant  
resources, do not modify the paging file whatsoever.  
Setting up Client Computers  
Before loading the Connector software to add a computer to the  
WD Sentinel server for backup, be sure that the computer’s operating system is fully  
up-to-date.  
When adding client computers to the WD Sentinel server, it is best not to have any  
backups active.  
Using the WD Sentinel DX4000 Efficiently  
The WD Sentinel server has many jobs to perform. Share data during business  
hours, and back up the computers during hours of inactivity. Keep the server  
powered on 24/7 to do its work.  
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BEST PRACTICES  
Replacing Drives  
The online removal of a drive forces a rebuild when the drive is replaced. Until the  
rebuild is complete, the RAID system is degraded and unrecoverable failure will  
occur should another drive be removed. Only remove one drive at a time between  
rebuilds.  
Avoid pulling a drive out unless there is a failure.  
When a drive needs replacement, the WD Sentinel server is still functional but  
subject to a second drive failure that would result in the loss of data. To minimize this  
vulnerable time, a good practice is to have another drive ready to replace the failed  
drive.  
Sharing Files with External Users  
Create Employee-Specific Private Folders/Assign Permissions—Depending on the  
nature of your business and organizational structure, you may want to create a  
shared folder for each employee and give the respective employee Read/Write  
permissions for that folder.  
Create Shares for Vendors or Clients/Access Remotely—The built-in Remote Web  
Access feature enables collaboration on files and data not only among your  
employees but also with your clients and vendors.  
As a best practice, create a unique user account for each client and vendor you  
want to exchange data with and create a dedicated Shared Folder for each such  
external user. To prevent giving external users access to your sensitive data, make  
sure that the user accounts you create have the appropriate permissions for only the  
folders you have created for them.  
To start collaborating with your external users, just provide them with the domain  
address of your WD Sentinel server and their user name and password.  
Shutting Down  
Unclean shutdowns are hard on RAIDed systems. The WD Sentinel server  
recognizes an unclean shut down and upon the reapplication of power, begins a  
long sequence of examining the RAID for errors and bringing the RAID configuration  
back into alignment. This sequence can take many hours. To avoid this situation and  
to assure that the unit always experiences clean shutdowns and the best data  
integrity, use an Uninterruptible Power Supply (UPS).  
Note: Performance is affected during a RAID rebuild and verification.  
Before shutting down the server, stop any backups currently running.  
To avoid possible corruption, do not unplug the power from the unit while it is  
running.  
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TROUBLESHOOTING  
Troubleshooting  
8
First Steps Checklist  
Specific Problems and Corrective Actions  
For any issue, first ensure that you are using the latest firmware for the  
WD Sentinel server. See “Updating Software” on page 24 for instructions.  
First Steps Checklist  
Is the power supply plugged in to the wall outlet and the drive?  
Are all cables correctly connected and secured?  
Is the power on? If not, see “LEDs” on page 12.  
Specific Problems and Corrective Actions  
The following section contains specific problems that may arise during the use of the WD  
Sentinel server and provides possible solutions.  
LEDs do not light up  
1. Make sure the power cord is connected correctly.  
2. Make sure that the wall outlet has power. Test it by plugging in another device.  
3. Confirm the network cable is properly connected to the WD Sentinel server and the  
network switch or router.  
4. Make sure the network switch or router has power.  
5. Use a different network cable and port on the network switch or router. Temporarily  
swapping the WD Sentinel’s cable port with a working network device may identify any  
failing cables and ports.  
Connecting to Shared Folders on a WD Sentinel server from a  
Windows PC on which Launchpad is not installed  
1. Right-click (My) Computer and select Map Network Drive.  
2. From the Drive drop-down list, choose the letter that you want the WD Sentinel server  
to have in (My) Computer.  
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TROUBLESHOOTING  
3. Click Browse to find the folder that you want to map, or type the path to the server  
using the format \\ServerName\FolderName. For example, if the share is called  
Documents, and your server is called MyServer, you would enter  
\\MyServer\Documents.  
4. If you want the drive to reconnect whenever the computer is rebooted, click the  
Reconnect at logon check box.  
5. Click Finish.  
Cannot access Windows PCs via Remote Access  
Internet Explorer 8 or 9 is required to access a Windows PC using the Remote Web Access  
feature of the WD Sentinel server. There is an Active X Client requirement that comes  
standard with these browsers. For more information, see Knowledge Base Answer ID 8578.  
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REGULATORY AND WARRANTY INFORMATION  
Regulatory and Warranty Information  
9
Regulatory Compliance  
Obtaining Service  
Limited Warranty  
Regulatory Compliance  
FCC Class B Information  
This device has been tested and found to comply with the limits of a Class B digital device,  
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable  
protection against harmful interference in a residential installation. This unit generates, uses,  
and can radiate radio frequency energy and, if not installed and used in accordance with the  
instructions, may cause harmful interference to radio or television reception. However, there  
is no guarantee that interference will not occur in a particular installation. Any changes or  
modifications not expressly approved by WD could void the user's authority to operate this  
equipment.  
The following booklet, prepared by the Federal Communications Commission, may be  
helpful: How to Identify and Resolve Radio/TV Interference Problems. This booklet is Stock  
No. 004-000-00345-4 available from the US Government Printing Office, Washington,  
DC 20402.  
The provided Ethernet cable must be used between the unit and network connection to  
comply with FCC Part 15 Class B and EN-55022 Class B.  
ICES/NMB-003 Compliance  
Cet appareil de la classe B est conforme à la norme NMB-003 du Canada.  
This device complies with Canadian ICES-003 Class B.  
Safety Compliance  
Approved for US and Canada. CAN/CSA-C22.2 No. 60950-1, UL 60950-1-07: Safety of  
Information Technology Equipment.  
Approuvé pour les Etats-Unis et le Canada. CAN/CSA-C22.2 No. 60950-1-07 : Sûreté  
d'équipement de technologie de l'information.  
This product is intended to be supplied by a listed limited power source, double insulated, or  
direct plug-in power unit marked “Class 2.”  
CE Compliance for Europe  
Verified to comply with EN55022 for RF emission; EN-55024 for Generic Immunity, as  
applicable; and EN-60950-1 for Safety.  
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KC Notice (Republic of Korea only)  
기종별  
사용자 안내문  
B 급기기  
이기기는가정용(B 급) 전자파적합기기로서주로  
(가정용방송통신기자재) 가정에서사용하는것을목적으로하며, 모든지역에  
서사용할수있습니다  
Class B Device 1. Please note that this device has been approved for non-business  
purposes and may be used in any environment, including residential areas.  
Environmental Compliance (China)  
Obtaining Service  
WD values your business and always attempts to provide you the very best of service. If this  
Product requires maintenance, either contact the dealer from whom you originally  
purchased the Product or visit our product support website at http://support.wdc.com for  
information on how to obtain service or a Return Material Authorization (RMA). If it is  
determined that the Product may be defective, you will be given an RMA number and  
instructions for Product return. An unauthorized return (i.e., one for which an RMA number  
has not been issued) will be returned to you at your expense. Authorized returns must be  
shipped in an approved shipping container, prepaid and insured, to the address provided on  
your return paperwork. Your original box and packaging materials should be kept for storing  
or shipping your WD product. To conclusively establish the period of warranty, check the  
warranty expiration (serial number required) via http://support.wdc.com. WD shall have no  
liability for lost data regardless of the cause, recovery of lost data, or data contained in any  
Product placed in its possession.  
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Limited Warranty  
WD warrants that the Product, in the course of its normal use, will for the term defined  
below, be free from defects in material and workmanship and will conform to WD's  
specification therefor. The term of your limited warranty depends on the country in which  
your Product was purchased. The term of your limited warranty is for 3 years in the North,  
South and Central America region, 3 years in the Europe, the Middle East and Africa region,  
and 3 years in the Asia Pacific region, unless otherwise required by law. The term of your  
limited warranty period shall commence on the purchase date appearing on your purchase  
receipt. WD may at its discretion make extended warranties available for purchase. WD shall  
have no liability for any Product returned if WD determines that the Product was stolen from  
WD or that the asserted defect a) is not present, b) cannot reasonably be rectified because  
of damage occurring before WD receives the Product, or c) is attributable to misuse,  
improper installation, alteration (including removing or obliterating labels and opening or  
removing external enclosures, including the mounting frame, unless the product is on the list  
of limited user-serviceable products and the specific alteration is within the scope of the  
applicable instructions, as found at http://support.wdc.com), accident or mishandling while in  
the possession of someone other than WD. Subject to the limitations specified above, your  
sole and exclusive warranty shall be, during the period of warranty specified above and at  
WD's option, the repair or replacement of the Product with an equivalent or better Product.  
The foregoing warranty of WD shall extend to repaired or replaced Products for the balance  
of the applicable period of the original warranty or ninety (90) days from the date of shipment  
of a repaired or replaced Product, whichever is longer. The foregoing limited warranty is  
WD's sole warranty and is applicable only to products sold as new. The remedies provided  
herein are in lieu of a) any and all other remedies and warranties, whether expressed, implied  
or statutory, including but not limited to, any implied warranty of merchantability or fitness for  
a particular purpose, and b) any and all obligations and liabilities of WD for damages  
including, but not limited to accidental, consequential, or special damages, or any financial  
loss, lost profits or expenses, or lost data arising out of or in connection with the purchase,  
use, or performance of the Product, even if WD has been advised of the possibility of such  
damages. In the United States, some states do not allow exclusion or limitations of  
incidental or consequential damages, so the limitations above may not apply to you. This  
warranty gives you specific legal rights, and you may also have other rights which vary from  
state to state.  
GNU General Public License (“GPL”)  
Firmware incorporated into this product may include third party copyrighted software  
licensed under the GPL or Lesser General Public License ("LGPL") (collectively, “GPL  
Software”) and not Western Digital’s End User License Agreement. In accordance with the  
GPL, if applicable: 1) the source code for the GPL Software may be downloaded at no  
charge from http://support.wdc.com/download/gpl or obtained on CD for a nominal charge  
from http://support.wdc.com/download/gpl or by calling Customer Support within three years  
of the date of purchase; 2) you may re-use, re-distribute, and modify the GPL Software; 3)  
with respect solely to the GPL Software, no warranty is provided, to the extent permitted by  
applicable law; and 4) a copy of the GPL is included herewith, may be obtained at http://  
www.gnu.org, and may also be found at http://support.wdc.com/download/gpl.  
Modification of or tampering with the Software, including but not limited to any Open Source  
Software, is solely at your own risk. Western Digital is not responsible for any such  
modification or tampering. Western Digital will not support any product in which you have or  
have attempted to modify the Software supplied by Western Digital.  
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APPENDIX  
Appendix  
10  
Managing iSCSI Storage on the WD Sentinel Server  
iSCSI Overview  
Internet SCSI (iSCSI) is an industry standard developed to enable transmission of SCSI  
block storage commands and data over an existing IP network by using the TCP/IP  
protocol. The encapsulated SCSI commands and data can be transmitted over a local area  
network (LAN) or a wide area network (WAN). As with traditional SCSI, an iSCSI storage  
solution requires at least one “initiator” residing on the client computer and at least one  
“target” residing on the storage server.  
Once the connection is established between the iSCSI initiator and the iSCSI target, the  
operating system on the iSCSI initiator sees the storage as a local storage device that can  
be formatted, read and written in the usual manner.  
Your WD Sentinel server allows you to create and manage iSCSI targets. The iSCSI target  
provides storage, similar to a local hard disk drive, but is accessed over a network rather  
than locally. The iSCSI target is protected by the underlying RAID structure of the WD  
Sentinel server.  
iSCSI Roles  
Initiator: A client computer that accesses storage devices using SCSI commands over an  
IP network.  
Target: A network-attached storage device that provides access to logical disks (which can  
be created on the WD Sentinel server).  
Managing iSCSI Targets  
Click the iSCSI icon to open the iSCSI page:  
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Setting  
Alias  
Description  
The user-friendly name used as an additional descriptive  
name for the target.  
Status  
The status of your target.  
•
•
xx initiators connected.  
Disabled  
Security  
The assigned security for the target.  
•
•
None: No security has been assigned to this target  
CHAP: Challenge Handshake Authentication  
Protocol (CHAP) security has been assigned to the  
target.  
Size  
The size of the target (e.g., 4, GB, 1 TB)  
Server Capacity  
Displays the total amount of space on your server and how it  
is distributed (i.e., available server space; used server space).  
Create an iSCSI Target  
To create an iSCSI Target that can be used in the WD Sentinel DX4000 server:  
1. Click Create an iSCSI Target in the ISCSI Tasks pane. The New iSCSI Target window  
appears.  
2. In the Alias field, enter an alias for your target. The alias should be a descriptive name for  
your target.  
3. In the Size field, enter the size of your target, then select the unit of information (e.g. KB,  
MB, GB, TB) from the pull-down menu.  
Note: Available space displays to the right of this field.  
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4. Click Create this target from an existing image file to create a target from an  
existing image file.  
Note: Use this step only if you have an existing iSCSI target image file.  
a. Select the … button.  
b. On the “Image file to use:” window, navigate to the location of your target image file,  
then click Open.  
5. Select the security type for your target.  
None: Does not assign security for your target.  
CHAP: Assigns Challenge Handshake Authentication Protocol (CHAP) security to  
your target.  
- If you’d like to change your User Name, click Edit. Note that the name must match  
your initiator CHAP name.  
- Enter your Target Secret. The Target Secret is a security key that must be between  
12 to 16 alphanumeric characters.  
6. Click Create Target.  
Edit an iSCSI Target  
1. On the iSCSI Tasks pane, click Edit Target Settings.  
2. Modify the required and optional settings as desired.  
3. Click Modify Target.  
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Disable an iSCSI Target  
Note: Disabling your iSCSI Target temporarily suspends the target, but does not remove it.  
If you’d like to permanently remove the target, See “Deleting an iSCSI Target” on  
page 70.  
1. In the iSCSI tab, select the target you’d like to disable.  
2. In the iSCSI Tasks pane, click Disable Target. The Disable a Target message appears.  
3. Click Disable Target. Disabled now displays in the Status column.  
Enabling an iSCSI Target  
1. In the iSCSI tab, select the disabled Target you’d like to enable.  
2. In the iSCSI Task pane, click Enable Target. Your target is now enabled.  
Deleting an iSCSI Target  
WARNING! Deleting your iSCSI Target completely removes the target. If you’d  
like to temporarily disable the target, See “Disable an iSCSI Target”  
on page 70.  
1. In the iSCSI tab, select the target you’d like to delete.  
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APPENDIX  
2. In the Task Pane, click Delete Target. The Delete a Target message displays.  
3. Click Delete Target. Your Target is deleted and removed from the iSCSI target list.  
Exporting an iSCSI Target  
1. On your desktop, open Windows Explorer.  
2. Under Network, select your WD Sentinel device.  
3. Select the folder to which you’ve saved your iSCSI Target image files (usually the  
Server>TargetImageFiles folder).  
4. Right-click the target you’d like to export and select Copy from the menu.  
5. Navigate to a different folder.  
6. Right-click in the folder and select Paste. Your iSCSI Target image file is now “exported”  
to a different folder.  
Note: The target image files will have the same name as the iSCSI target you just copied  
and will have a ".img" file extension.  
Importing an iSCSI Target  
To import an iSCSI Target into your WD Sentinel, follow the steps outlined in “Create an  
iSCSI Target” on page 68, following step 4 (selecting the Create this target from an existing  
image file checkbox) to import your iSCSI target.  
71  
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GLOSSARY  
Glossary  
910  
CIFS—Common Internet File System. The recommended file sharing protocol for Windows  
platform allows users to access shares through My Network Places.  
Mac OS X or later also supports the CIFS protocol. See also Protocol.  
CLIENT COMPUTER—A computer that accesses services made available by a server  
computer.  
DHCP—Dynamic Host Configuration Protocol. A protocol for assigning IP addresses to  
devices on a network. With dynamic addressing, a device can have a different IP address  
each time it connects to the network. In some systems, the device's IP address even  
changes while it is still connected. DHCP also supports a mix of static and dynamic IP  
addresses. See also Protocol.  
DLNA—Digital Living Network Alliance. The group of consumer electronics, computing  
industry, and mobile device companies that sets standards for product compatibility, thus  
enabling users to share content in their home.  
DMA— Digital Media Adapter. A device that gives home entertainment devices the ability to  
transfer media such as music, photos, videos to and from other devices over the network.  
DNS—Domain Name Service. A system that allows a network name server to translate text  
host names into numeric IP addresses used to uniquely identify any device connected to the  
Internet.  
ESD—Electrostatic discharge.  
Ethernet—A standard method of connecting computers to a Local Area Network (LAN).  
File Transfer Protocol (FTP)—A network protocol used to transfer data from one  
computer to another through a network. FTP is a popular choice for exchanging files  
independent of the operating systems involved.  
GreenPower™ Technology—Engineering technology developed by WD to bring more  
energy-efficient hard drive options to our customers. WD hard drives with GreenPower  
technology yield average power savings of 4-5 watts over competitors' drives while  
maintaining solid performance.  
Host—The computer to which other computers and peripherals connect.  
Host Interface—The point at which a host and a drive are connected to each other.  
Host Transfer Rate—The speed at which a host computer can transfer data across an  
interface.  
HTTP—Hypertext Transfer Protocol. Protocol used by the World Wide Web to transfer  
information between servers and browsers. See also Protocol.  
HTTPS—Hypertext Transfer Protocol over Secure Socket Layer. A protocol that provides a  
more secure means of configuring your device than HTTP, but may affect the  
responsiveness of the user interface. All traffic between the managing computer and the WD  
Sentinel server is encrypted. See also Protocol.  
Hub—In a network, a device joining communication lines at a central location, providing a  
common connection to all devices on the network.  
Interface—A hardware or software protocol to manage the exchange of data between a  
device and a computer; the most common ones are EIDE (also known as PATA), SATA, and  
SCSI. See also Protocol.  
72  
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GLOSSARY  
IP—Internet Protocol. A system that controls how data messages are separated into  
packets, routed from the sender, and reassembled at the destination. See also Protocol.  
IP Address—A 32-bit, binary number that uniquely identifies a computer connected to the  
Internet.  
iSCSI —Internet Small Computer System Interface. iSCSI is an IP-based storage  
networking standard for linking data storage facilities.  
iTunes—An audio playback program used to import songs and other media files from your  
hard drive or WD Sentinel server drive.  
LAN— Local Area Network. A system in which computer users in the same company or  
organization are linked to each other and often to centrally-stored collections of data in LAN  
servers.  
LED—Light-emitting Diode. An electronic device that lights up when electricity is passed  
through it.  
Media Server—Device that stores and shares media files (digital audio, digital video, and  
digital photos).  
Media Storage—Device that stores media files (digital audio, digital video, and digital  
photos).  
Multi-user—A system in information technology that enables more than one user to access  
data at the same time.  
NAS—Network Attached Storage. Hard disk storage that is set up with its own network  
address rather than being attached to the computer that is serving network workstation  
users.  
Network Computer—A computer that communicates with a central data storage facility  
such as a server or RAID system.  
NFS—Network File System. A network file system protocol that allows a user on a client  
computer to access files over a network as easily as if the network devices were attached to  
its local disks. Normally associated with UNIX systems. See also Protocol.  
NTP—Network Time Protocol. A protocol for synchronizing the clocks of computers and  
equipment over a network. See also Protocol.  
Operating System—Software that allows users and programs installed on your system to  
communicate with computer hardware such as a hard drive.  
Partition—A logical division on a hard drive that the operating system treats as a separate  
hard drive. Each partition is assigned a unique drive letter.  
Port (Hardware)—A specialized outlet on a device for connecting to other devices using a  
cable or a plug. Ethernet ports, power ports, and USB ports are examples.  
Protocol— A convention of data transmission that defines timing, control format, and data  
representation.  
RAID—Redundant Array of Independent Disks. A grouping of hard drives in a single system  
to provide greater performance and data integrity.  
RAID 1— RAID protocol in which two copies of the data are instantaneously recorded: each  
on separate hard drives. RAID 1 ensures the protection of users' data because in the event  
that one of the hard drives fails, the other hard drive(s) will continue to read and write data  
until the faulty hard drive is replaced and rebuilt to once again safely mirror the data. See  
also Mirroring.  
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GLOSSARY  
RAID 5— For systems with three or more drives, RAID 5 offers fast performance by striping  
data across all drives. It protects data by dedicating a quarter of each drive to fault  
tolerance, leaving three quarters of the system capacity available for data storage.  
RAM—Random Access Memory. Memory that allows any storage location to be accessed  
randomly, as opposed to sequential access devices such as tape drives.  
ROM—Read-Only Memory. An integrated circuit memory chip containing programs and  
data that the computer or host can read but cannot modify. A computer can read  
instructions from ROM but cannot store data in ROM.  
Share—An area, similar to a folder or directory, set up to organize files and access them on  
your network. Shares can be Public, shared with everyone on your network, or Private,  
shared with only selected users on your network.  
SMB—Server Message Block. File-sharing protocol for Windows platform that allows users  
to access shares through My Network Places. Mac OS X or later also supports the CIFS  
protocol. See also Protocol.  
SMTP—Simple Mail Transfer Protocol. Standard for transferring email across the Internet.  
See also Protocol.  
Streaming Media—Media such as audio, video, and photos that are constantly received  
while being delivered by a streaming provider.  
Striping—The spread of data over multiple hard drives to improve performance. See also  
RAID 0.  
TCP/IP—Transmission Control Protocol/Internet Protocol. A set of protocols for  
communication over interconnected networks. The standard for data transmission over  
networks. See also Protocol.  
UPnP—Universal Plug n Play. A set of computer network protocols that simplify the  
implementation of networks in the home by allowing devices to connect seamlessly. See  
also Protocol.  
WAN—Wide Area Network. A computer network that crosses metropolitan, regional, or  
national boundaries.  
74  
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INDEX  
cooling fan 21  
Customer Support  
automatic request 23  
contacts ii  
Index  
A
About tab 19  
accessing Dashboard 16  
accessing Launchpad  
Mac computer 35  
Windows PC 34  
accessing shared folders  
via network 40  
D
Dashboard  
accessing 16  
tabs 18  
tasks 18  
description of WD Sentinel DX4000  
document conventions  
drives  
3
via Remote Web Access 41  
2
accessories  
6
adding storage capacity 33  
Administrator’s tasks 14  
alert icons 19  
compatible 23  
lock/unlock 23  
E
alerts 21  
enabling Remote Web Access 26  
environmental compliance (China) 65  
external users’ tasks 14  
automatic backups 43, 48  
automatically updating WD software  
25  
F
B
FCC Class B information 64  
files and folders  
recovering 48, 49  
back view  
9
backing up  
using Dashboard 45  
using Launchpad 44  
Windows PC 42, 44, 45  
with Time Machine 45  
front view  
9
G
GNU general public license 66  
backups  
H
automatic 43, 48  
bare metal restore 48  
basic product information 19  
best practices  
Health tab 21  
help  
where to find 13  
Help icon 18  
Home page 18  
tabs 19  
getting started 19  
replacing drives 61  
setting up client computers 60  
setting up WD Sentinel DX4000 60  
using efficiently 60  
tasks 20  
I
box contents  
5
ICES/NMB-003 compliance 64  
icon  
C
Add-ins 21  
alerts 19  
China RoHS 65  
compliance 64  
Computer and Backups 20  
Computers and Backups 43  
Help 18  
regulatory 64  
safety 64  
computers  
Launchpad 34  
Monitor 21  
navigation 18  
Server Folders and Hard Drives 20  
Trash 39  
User 20  
connecting 16  
Remote Web Access 41  
Computers and Backups 20  
Computers and Backups icon 43  
connecting Windows PC to shared folders  
without Launchpad 62  
75  
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
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INDEX  
increasing storage capacity 33  
internal users’ tasks 14  
accessing computers and shared fold-  
ers 41  
media library 42  
L
replacement drives 23  
replacing a drive 31  
requirements  
operating systems  
server recovery 50  
restore  
backed up Windows PC data 48  
restoring data and settings 48, 49  
RoHS 65  
Launchpad  
accessing on a PC 34  
backing up 44  
icon 34  
managing 37  
options 37  
7
starting a backup 44  
uninstalling on a Mac computer 39  
uninstalling on Windows PC 39  
lock password, changing 24  
S
safe shutdown 27  
safety compliance 64  
scheduling Automatic Backups  
Dashboard 43  
M
Mac  
backing up 45  
Mac computer, accessing Launchpad 35  
managing the Launchpad 37  
media library, accessing remotely 42  
Microsoft software  
PC 43  
Time Machine 45  
scheduling WD software updates 25  
server  
updating 25  
setting up 16  
Monitor icon 21  
monitoring system health 21  
server folders 20  
server recovery 50  
requirements 50  
server settings  
N
navigation icons 18  
general 26  
homegroup 26  
managing 25  
network connection health 21  
O
office uses 15  
media 26  
online product registration ii  
operating system requirements  
service  
7
obtaining 65  
shared folders  
P
accessing over the network 40  
accessing remotely 41  
Remote Web Access 41  
shutting down safely 27  
specifications  
storage 21  
package contents  
password  
5
Administrator 14  
lock/unlock 23  
8
password and user name 14  
power supplies 21  
product registration ii  
managing 29, 67  
RAID 29, 67  
USB 30, 67  
system health 21  
system temperature 21  
R
RAID storage 29, 67  
recovering data  
PC 48  
T
recovering the WD Sentinel server 50  
reference resources 12  
registration, online ii  
regulatory compliance 64  
Remote Web Access 26  
tabs  
Home page 19  
Updating Software 24  
tasks  
Dashboard 18  
76  
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
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INDEX  
Health 21, 67  
Home page 19  
tasks pane 18  
technical specifications  
8
Technical Support contacts list ii  
temperature 21  
Time Machine  
backing upusing Time Machine 45  
Trash icon 39  
troubleshooting  
cannot access Windows PCs via Re-  
mote Access 63  
checklist 62  
drive not connecting to network 62  
LEDs do not light up 62  
U
Underwriters Laboratories Inc. (UL) 64  
updating Microsoft software 25  
updating WD Software 24  
USB  
sharing files and folders 30  
storage 30, 67  
user accounts 14, 20  
user assistance 12  
users  
external 14  
internal 14  
Using 34  
W
warning  
lithium battery 2, 50, 54, 70  
unclean shutdown 28  
WD Guardian Services 19  
WD limited warranty 66  
WD Sentinel DX4000  
components 10  
using locally and remotely 15  
WD Service 65  
WD software  
automatic updates 25  
manual updates 24  
updating 24  
Windows PC  
backing up 42  
backing up via Dashboard 45  
backing up via Launchpad 44  
restoring 48  
77  
WD SENTINEL DX4000  
ADMINISTRATOR’S GUIDE  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Information furnished by WD is believed to be accurate and reliable; however, no responsibility is  
assumed by WD for its use nor for any infringement of patents or other rights of third parties which may  
result from its use. No license is granted by implication or otherwise under any patent or patent rights of  
WD. WD reserves the right to change specifications at any time without notice.  
Western Digital, WD, and the WD logo are registered trademarks in the U.S. and other countries; and  
WD Sentinel and WD Guardian are trademarks of Western Digital Technologies, Inc. Other marks may be  
mentioned herein that belong to other companies.  
© 2012 Western Digital Technologies, Inc. All rights reserved.  
Western Digital Corporation  
3355 Michelson Drive, Suite 100  
Irvine, California 92612 U.S.A.  
4779-705064-A03 December 2012  
.
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