Western Digital Sentinel DX4000 Service manual

WD Sentinel DX4000
Small Office Storage Server
Administrator’s Guide
™

WD®Service and Support
Should you encounter any problem, please give us an opportunity to address it before returning this
product. Most technical support questions can be answered through our knowledge base or email
support service at http://support.wdc.com. If the answer is not available or if you prefer, please
contact WD at the best telephone number shown below.
WD Guardian™ Services premium Technical Support and Extended Warranty services are also
available for Small Business Customers. Contact WD Technical support at http://support.wdc.com
for information about this extra level of support and how to obtain it.
Your product includes 30 days of free telephone support during the 3-year standard limited warranty
period. This 30-day period starts on the date of your first telephone contact with WD Technical
Support. Email support is free for the entire warranty period and our extensive knowledge base is
available 24/7. To help us keep you informed of new features and services, remember to register
your product on the Registration page on the user interface or online at http://register.wdc.com.
Accessing Online Support
Visit our product support website at http://support.wdc.com and choose from these topics:
•Downloads - Download drivers, software, and updates for your WD product.
•Registration - Register your WD product to get the latest updates and special offers.
•Warranty & RMA Services - Get Warranty, Product Replacement (RMA), RMA Status, and
Data Recovery Information.
•Knowledge Base - Enter keyword, phrase, answer ID, or PID.
•Installation - Get manuals, installation guides, and documentation for your WD product.
•WD Community - Share your thoughts and connect with other WD users.
Contacting WD Technical Support
When contacting WD for support, have your WD product serial number, system hardware, and
system software versions available.
Registering Your WD Product
Register your WD product to get the latest updates and special offers. You can easily register your
product on the user interface of the product software or online at http://register.wdc.com.
North America Europe (toll free)* 00 800 211 02110
English 855.556.5117
Spanish 855.556.5117 Europe [phone]
Middle East [phone]
Mexico 001 8002754932 Isreal 014 800 211 02110
Africa [phone]
South Africa 00 800 211 02110
South America Asia Pacific
Chile 1230 020 5871 Australia [phone]
Venezuela 0800 100 2855 China + 00 800 211 02110
Peru 0800-54003 Hong Kong +001 800 6008 6008
Uruguay 000 413 598 3787 India [phone]
Argentina 0800 4440839 Indonesia + 803 852 9439
Brazil 0021 0800 211 02110 Japan 001 800 211 02110 / 0033 800 211
02110 / 0061 800 211 02110
Columbia 009 800 211 02110 Korea 001 800 211 02110 / 002 800 211
02110
Malaysia +00 800 211 02110
Philippines 00 800 211 02110
Singapore + 00 800 211 02110
Taiwan + 00 800 211 02110
Thailand + 001 800 211 02110
* Toll free number available in the following countries: Austria, Belgium, Cyprus, Czech Republic, Denmark, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway, Poland, Portugal, Slovenia, Spain, Sweden, Switzerland, United Kingdom.

TABLE OF CONTENTS – i
WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
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 User Roles and Responsibilities ...............14
Types of WD Sentinel DX4000 Users .......................14
How the WD Sentinel DX4000 Fits into Your Office ............15
4 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
Table of Contents

TABLE OF CONTENTS – ii
WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
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 Troubleshooting ............................62
First Steps Checklist ...................................62
Specific Problems and Corrective Actions ...................62
9 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

1
IMPORTANT USER INFORMATION
1
WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
Important User Information
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.

IMPORTANT USER INFORMATION
2
WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
-If the product exhibits a distinct change in performance, contact WD Customer Sup-
port at http://support.wdc.com.
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:
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.
Convention Used for ...
Bold font 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
2
PRODUCT OVERVIEW
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WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
Product Overview
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).

PRODUCT OVERVIEW
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WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
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.

PRODUCT OVERVIEW
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WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
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

PRODUCT OVERVIEW
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WD SENTINEL DX4000
ADMINISTRATOR’S 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
Canada www.shopwd.ca or www.wdstore.ca
Europe www.shopwd.eu or www.wdstore.eu
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.
WD Sentinel DX4000
AC adapter
(2nd AC adapter for 16 TB Models)
Ethernet cable Quick Install Guide

PRODUCT OVERVIEW
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WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
System Requirements and Compatibility Information
Requirement Description
Client Operating System
Compatibility
Windows 7
• 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

PRODUCT OVERVIEW
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WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
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 CIFS/SMB, NFS, HTTP, HTTPS, WebDAV
Internal hard drives 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
Memory 2 GBytes SODIMM DDR3-800
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 4 TB, 6 TB, 8 TB, 12 TB, 16 TB
Power • 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 • Operating temperature: 5 to 35 °C (41 to 95 °F)
• Non-operating temperature: -20 to 65°C (-4 to 149 °F)
Switches • Power
• Buttons for scrolling through messages on LCD

PRODUCT OVERVIEW
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WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
Product Views
Front View
LEDs 1 Power LED
• 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
Operating System Windows Storage Server 2008 R2 Essentials
Backups 25-client computer support for backup (server based)
Recovery • Bare metal restore
• File/folder level restore
Specification Description
Scroll buttons
Power button
Power/Status LED
Drive status LEDs
Door covering drives

PRODUCT OVERVIEW
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WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
Back View
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.
LEDs
Power ports
1&2
Ethernet ports
1&2
USB ports
1&2
Kensington Security Lock
Reset/Recovery button
Fan

PRODUCT OVERVIEW
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WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
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.
Drive Overtemp The temperature of one of the drives is too high.
Ethernet 1 Disconnected WD Sentinel server has detected that Ethernet 1 has lost connection.
Ethernet 2 Disconnected WD Sentinel server has detected that Ethernet 2 has lost connection.
Fan Failed 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 A drive with incompatible size was inserted and migration/rebuild could
not proceed.
Migrating … % RAID system is migrating to a larger capacity due to the addition of a
drive.
Network Disconnected The server is not connected to the network.
Power Supply 1 Failed Power supply 1 has failed or been disconnected.
Power Supply 2 Failed Power supply 2 has failed or been disconnected.
Reboot WD Sentinel server will reboot.
Repairing … % RAID system is being repaired to full RAID protection.
Shutting Down WD Sentinel server is shutting down.
Software Update Available A WD Sentinel server update is available. Using the Dashboard, apply the
update.
Storage Degraded RAID protection is no longer in place, and a drive needs to be replaced.
Temperature High 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.

PRODUCT OVERVIEW
12
WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
LEDs
The LEDs on the Sentinel work in conjunction with the LCD display to further identify the
status of the unit.
LED Color State Description
Power LED Blue Flashing WD Sentinel server is currently booting the software.
Blue Solid 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 Off If the LED is off while other drive LEDs are on, no drive
is installed in the bay.
Blue Flashing Drive is currently active. Note that all lights in a RAID
system are active at the same time by design.
Red Solid 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 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)
Green Blinking Indicates link activity.

PRODUCT OVERVIEW
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WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
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 at the top right of the
Dashboard.
• 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.

3
USER ROLES AND RESPONSIBILITIES
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WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
User Roles and Responsibilities
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.
Administrator
(e.g., Business Owner)
Internal Users
(e.g., Employees)
External Users
(e.g., Clients or Business
Partners)
Primary Setup Tasks
• Physically connects the
WD Sentinel server to the
network.
• 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 Setup Tasks
• None
Primary Setup Tasks
• None
Primary User Interface
• Dashboard - Signs in using the
Administrator password (no
username required).
Primary Interface
• Launchpad - 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.
Primary Interface
• Remote Web Access - Signs in
using the assigned user name
and password.

USER ROLES AND RESPONSIBILITIES
15
WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
How the WD Sentinel DX4000 Fits into Your Office
Dashboard Task Examples
• Sets up user accounts and
assigns permissions.
• Manages shared folders.
• Sets up and manages
automatic backup schedule.
• Manages WD Sentinel server
settings, resolves any alerts,
and monitors server
performance.
• Sets up Remote Web Access.
• Manages updates.
• Creates and manages iSCSI
targets.
Launchpad Task Examples
• Accesses data on shared
storage.
• Starts manual backups.
• Launches Remote Web
Access.
Remote Web Access Task
Examples
• Accesses data on shared
storage.
• Connects to the PCs in the
office remotely.
• Accesses media library.
Remote Web Access Task
Examples
• Accesses data on shared
storage.
• 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.
Administrator
(e.g., Business Owner)
Internal Users
(e.g., Employees)
External Users
(e.g., Clients or Business
Partners)

4
MANAGING THE WD SENTINEL SERVER (DASHBOARD)
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WD SENTINEL DX4000
ADMINISTRATOR’S GUIDE
Managing the WD Sentinel Server (Dashboard)
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: