Western Digital Computer Drive WDBUTV0040JSL User Manual

®
TM  
My Book Thunderbolt Duo  
Dual-drive Storage System  
User Manual  
My Book Thunderbolt Duo User Manual  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
Table of Contents  
®
Kensington Security Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
TABLE OF CONTENTS – iii  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
About Your WD Storage Device  
1
Welcome to your My Book® Thunderbolt™ Duo dual-drive storage device, featuring  
revolutionary Thunderbolt technology that sets new standards for data transfer speeds  
and workflow flexibility in high-capacity storage.  
This chapter includes the following topics:  
Features  
Move data at unprecedented speeds—Do more work in less time with ground-  
breaking data transfer speeds using Thunderbolt technology. Your My Book Thunderbolt  
Duo dual-drive storage device provides a fast way to get information to and from your  
external drives.  
Multiple dual-drive storage configurations—Select RAID or Individual Drives modes:  
• RAID 0 (Striped mode) for maximum capacity and accelerated performance.  
• RAID 1 (Mirrored mode) for double-safe data protection by automatically creating  
a second copy of your data. One of the drives stores your data and the other drive  
saves a second copy. If either drive fails, your data is protected because it is  
duplicated on the other drive.  
• JBOD (Individual Drives mode) for using the two drives independently, and not  
configured into a RAID array.  
Enhance workflow efficiency—Use the two Thunderbolt ports to daisy chain up to six  
Thunderbolt storage devices to achieve maximum workflow efficiency and productivity.  
High-speed multitasking—The revolutionary bidirectional Thunderbolt technology  
delivers unmatched speed for multitasking projects.  
Super-fast external boot capability—For information about using your My Book  
Thunderbolt Duo as an external boot device using Mac OS X 10.6.8 or later, see the  
User serviceable—When you need to replace a drive, just open the case and do it  
yourself. No tools are needed.  
WD Drive UtilitiesTM software—Keep your device performing at its best by configuring  
the drives, running diagnostics, and more.  
ABOUT YOUR WD STORAGE DEVICE – 1  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
Important: For the latest WD product information and news, visit our website at http://  
www.westerndigital.com. For the latest software, firmware, and product documentation  
and information, go to http://support.wdc.com/downloads.  
Kit Contents  
As shown in Figure 1, your My Book Thunderbolt Duo dual-drive storage device kit  
includes the following:  
• My Book Thunderbolt Duo dual-drive storage device  
• AC adapter (configuration varies, depending on region)  
• Thunderbolt cable  
• Quick Install Guide  
• WD Drive Utilities software (included on the device).  
Thunderbolt Cable  
AC Adapter  
My Book Thunderbolt Duo Dual-drive Storage Device  
Quick Install Guide  
Figure 1. My Book Thunderbolt Duo Dual-drive Storage Device Kit Components  
Optional Accessories  
For information about optional accessories for this product, visit:  
US  
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.  
ABOUT YOUR WD STORAGE DEVICE – 2  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
Operating System Compatibility  
Your My Book Thunderbolt Duo dual-drive storage device and WD Drive Utilities  
software are compatible with the following Mac OS X 10.6.8 or later operating systems  
on Thunderbolt technology-enabled computers:  
• Snow Leopard™  
• Lion  
Compatibility can vary, depending on hardware configuration and operating system.  
For highest performance and reliability, always install the latest software update. Go to  
the Apple menu and select Software Update.  
Disk Drive Formats  
Your My Book Thunderbolt Duo dual-drive storage device is initially formatted with  
HFS+J partitions and configured as a striped RAID disk array (RAID 0).  
In the RAID configurations, both drives are formatted with a single HFS+J partition for  
Mac OS X operating systems. In the JBOD configuration, each drive can be reformatted  
as either:  
• HFS+J for Mac computers  
• exFAT for running Windows operating systems on Mac computers  
Note: Older Windows operating systems might need a patch from Microsoft to recognize  
the exFAT format. (See http://support.microsoft.com/?kbid=955704.)  
Physical Description  
As shown in Figure 2, the My Book Thunderbolt Duo dual-drive storage device has:  
• A power/activity LED indicator on the front  
• The power connector, Thunderbolt ports, and a security slot on the back  
Thunderbolt Ports  
Kensington® Security Slot  
Power Connector  
Power/Activity LED  
Front View  
Rear View  
Figure 2. Front and Rear Views of Your My Book Thunderbolt Duo Dual-drive Storage Device  
ABOUT YOUR WD STORAGE DEVICE – 3  
Download from Www.Somanuals.com. All Manuals Search And Download.  
                 
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
Power/Activity LED  
The power/activity LED shows the device’s normal power state and activity, and  
provides caution/warning indications as follows:  
LED Appearance  
Power State/Activity  
Normal Operating Indications  
Brief fast-flash display of white-amber-white- Initial power-on sequence  
amber-white-amber-off, less than one second  
in duration  
White, on steady  
Ready, interface enabled, but idle  
Active  
White, continuous fast flashing,  
approximately four times per second  
Off  
No power, no interface connection, or sleep  
status  
Caution/Warning Indications  
Amber, on steady  
Fan failure or over-/under-temperature  
condition  
Amber, slow flashing, approximately two  
times per second, every other second  
At or above critical temperature  
Note: If you see an over-temperature indication, power down the device and let it  
cool for 60 minutes. Power it back on, and if the problem persists, contact  
WD Support.  
Thunderbolt Ports  
As shown in Figure 2 on page 3, the My Book Thunderbolt Duo dual-drive storage  
device has two dual-channel Thunderbolt ports that provide a fast, flexible interface for:  
Performance—Thunderbolt technology delivers unprecedented data transfer  
rates thanks to its revolutionary bidirectional I/O throughput. Each Thunderbolt  
port provides two bidirectional channels, each with theoretically up to 10 Gb/s of  
bandwidth.  
Simplicity—Thunderbolt technology supports daisy chaining multiple devices  
through a single Thunderbolt connector so you can multitask at Thunderbolt  
technology speed without having to use a switch or hub. This reduces the  
hardware clutter and increases productivity.  
Flexibility—Connect additional Thunderbolt technology-enabled external hard  
drives, media players, HD displays, media capture and editing systems and more  
through a single connector.  
ABOUT YOUR WD STORAGE DEVICE – 4  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
Kensington® Security Slot  
For physical device security, the Kensington security slot accepts a standard Kensington  
security cable (sold separately). For more information about the Kensington security slot  
and available products, visit http://www.kensington.com.  
Registering Your Device  
Always register your My Book Thunderbolt Duo dual-drive storage device to get the  
latest updates and special offers. You can easily register your device using the WD Drive  
Utilities software, as described in “Registering the Device” on page 18. Another way is to  
register online at http://register.wdc.com.  
Handling Precautions  
WD products are precision instruments and must be handled with care during unpacking  
and installation. Drives can be damaged by rough handling, shock, or vibration. Observe  
the following precautions when unpacking and using your external storage product:  
• Do not drop or jolt the device.  
• Do not move the device during power on state.  
• Do not operate the device in any position other than the standing upright position.  
• Do not use this product as a portable device.  
• Do not place the device on carpeting. Make sure the device is on a clean, firm,  
and stable surface.  
To allow proper ventilation, do not block any of the enclosure’s air slots.  
ABOUT YOUR WD STORAGE DEVICE – 5  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
Connecting the Device and Getting Started  
2
This chapter provides instructions for:  
Connecting the Device  
1. Depending on your region, if required, change the power adapter as follows:  
Installing  
Removing  
Installing  
Removing  
2. Turn on your computer.  
3. Connect the AC adapter to a power receptacle and to the 12 VDC power connector  
on the device:  
CONNECTING THE DEVICE AND GETTING STARTED – 6  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
4. Use the Thunderbolt cable to connect either port on the device to your computer:  
5. Use the other port on the device to connect additional Thunderbolt peripherals.  
Note: Thunderbolt technology supports a total of seven devices—your computer and up  
to six Thunderbolt storage devices.  
6. The device automatically powers up and mounts to your computer.  
7. Verify that the My Book Thunderbolt Duo appears under DEVICES in the Sidebar  
area of your Finder display:  
Note: If the External disks check box is selected on your Finder Preferences dialog, the  
My Book Thunderbolt Duo icon displays on your desktop:  
8. The first time you connect the device to your computer, a message asks if you want  
to use the device drives to back up with Time Machine:  
Note: Currently the Encrypt Backup Disk check box only appears on computers using  
the Lion operating system. DO NOT select this check box. Your My Book  
Thunderbolt Duo device leverages the operating system to enable RAID  
CONNECTING THE DEVICE AND GETTING STARTED – 7  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
configurations. The Stripe and Mirror RAID modes of your My Book Thunderbolt  
Duo device are software configured, and the Lion backup disk encryption feature  
is not compatible with software-configured RAID devices.  
If you want to use your device as a backup device with Time Machine on  
Lion, you can either:  
Use it in the default striped RAID configuration without backup  
encryption.  
Convert it to a mirrored RAID configuration and use it without backup  
encryption.  
Convert it to individual drives and use one of them with or without  
backup encryption.  
If you do not want to use the Time Machine backup software, or if you want to  
change the drive configuration and then set up Time Machine backups, click:  
- Don’t Use on Lion  
- Cancel on Snow Leopard  
If you do want to use the Time Machine backup software, click Use as Backup  
Disk.  
Either way, your My Book Thunderbolt Duo dual-drive storage device is ready to use.  
It is recommended to install the WD Drive Utilities software to manage your device.  
Installing the WD Drive Utilities Software  
1. Double-click either the My Book Thunderbolt Duo Finder listing or its desktop icon,  
and then double-click the .dmg file on the screen that displays:  
CONNECTING THE DEVICE AND GETTING STARTED – 8  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
2. Drag the icon for the WD Drive Utilities software to the alias Applications folder on  
the screen that displays:  
3. In the alias Applications folder, double-click the WD Drive Utilities application.  
4. Read the license agreement and click Accept to continue and display the WD Drive  
Utilities screen (see Figure 3 below and “Managing and Customizing Your My Book  
.
Figure 3. WD Drive Utilities Screen  
CONNECTING THE DEVICE AND GETTING STARTED – 9  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
Managing and Customizing Your My Book  
Thunderbolt Duo Device  
3
This chapter includes the following topics:  
The WD Drive Utilities software (see Figure 3 on page 9) makes it easy for you to manage  
and customize your storage device for the best possible performance:  
• Diagnostics—Run diagnostics and status checks to make sure your device drives  
are working properly.  
• RAID Management—Check the operational status or change the device drive  
configuration.  
• Drive Erase—Erase all of the data on the drives.  
• Registration—Register your device to receive free technical support during the  
warranty period and find out about software updates, product enhancements, and  
price discount opportunities.  
On the WD Drive Utilities screen:  
IF you want to . . .  
THEN click . . .  
AND see . . .  
Run drive diagnostics and status  
checks,  
Diagnostics  
the next section.  
Check the RAID status or change the RAID Management  
configuration of the device drives,  
Erase the drives so you can retrieve  
the space and start over,  
Drive Erase  
Registration  
Register the device to receive free  
technical support during the warranty  
period and keep up-to-date on the  
latest WD products,  
Checking Device Health  
The WD Drive Utilities software provides three diagnostic tools to help make sure that  
your device is performing well. Run the following tests if you are concerned that your  
device is not operating properly:  
• S.M.A.R.T. Status Check  
S.M.A.R.T. is a failure-prediction function that continuously monitors key internal  
performance attributes of the device drives. A detected increase in drive  
temperature, noise, or read/write errors, for example, can provide an indication  
that the drive is approaching a serious failure condition. With advanced warning,  
you could take precautionary measures, like moving your data to another device,  
before a failure occurs.  
The result of a S.M.A.R.T. status check is a pass or fail evaluation of the drives’  
condition.  
MANAGING AND CUSTOMIZING YOUR MY BOOK THUNDERBOLT DUO DEVICE – 10  
Download from Www.Somanuals.com. All Manuals Search And Download.  
               
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
• Quick Drive Test  
Each device drive has a built-in Data Lifeguard™ diagnostic utility that tests the  
drive for error conditions. The quick drive test checks the drives for major  
performance problems.  
The result of a quick drive test is a pass or fail evaluation of the drives’ condition.  
• Complete Drive Test  
The most comprehensive drive diagnostic is the complete drive test. It checks  
every sector for error conditions, and inserts bad sector markers as required.  
The best time to run the drive diagnostics and status checks is on a regular basis, before  
you encounter any problems with your drives. And, because they are so fast, running the  
S.M.A.R.T. status check and the quick drive test provides a high level of assurance with  
minimal inconvenience. Then, run all three whenever you encounter disk error conditions  
when writing or accessing files.  
To run drive diagnostics and status checks:  
1. Click Go > Applications > WD Drive Utilities to display the WD Drive Utilities screen  
2. If you have more than one supported drive or storage device connected to your  
computer, select the one that you want to check.  
3. Click Diagnostics to display the Diagnostics dialog:  
4. On the Diagnostics dialog, click the button for the test that you want to run:  
S.M.A.R.T. Status  
Quick Drive Test  
Complete Drive Test  
MANAGING AND CUSTOMIZING YOUR MY BOOK THUNDERBOLT DUO DEVICE – 11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
Managing the RAID Configuration  
The initial/default configuration of your My Book Thunderbolt Duo device is as a striped  
RAID 0 disk array for high-speed/maximum-storage performance. You can reconfigure  
the device as either:  
• A mirrored RAID 1 disk array for maximum-protection/reduced-storage  
• JBOD individual drives that can be formatted differently for enhanced flexibility  
Checking the Device Status  
The WD Drive Utilities software provides a status indication of the device configuration  
and each device drive.  
To check the device status:  
1. Click Go > Applications > WD Drive Utilities to display the WD Drive Utilities screen  
2. If you have more than one supported storage device connected to your computer,  
select the one that you want to check.  
3. Click RAID Management > Status to display the device status:  
4. The status display shows:  
Current Configuration as either:  
- Stripe  
- Mirror  
- Individual Drives  
RAID Status as either:  
- Online  
- Offline  
- Degraded  
- Failed  
For RAID configurations, Drive A and Drive B Status as either:  
- Online—The drive is online and available  
- Failed—The drive has failed  
- Removed—The drive has been removed  
- Standby—The drive is part of the RAID array but needs to be rebuilt  
- Rebuilding—The drive is being rebuilt  
- Unknown—The drive has some other undetermined status  
MANAGING AND CUSTOMIZING YOUR MY BOOK THUNDERBOLT DUO DEVICE – 12  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
Changing the Device Configuration  
CAUTION! Changing the device configuration reformats both drives, which erases  
all of the data on them. If you have been using the device in one mode and then  
want to switch to a different mode, back up your files to another storage device  
before changing the configuration.  
Note: Changing the device configuration also deletes the WD software and all of the  
support files, utilities, and user manual files. You can download these to restore  
the device to its original configuration after the change. (See Knowledge Base  
answer ID 7 at http://support.wdc.com for information about downloading and  
restoring the WD software and disk image.)  
To change the device configuration:  
1. Click Go > Applications > WD Drive Utilities to display the WD Drive Utilities screen  
2. If you have more than one supported storage device connected to your computer,  
select the one that you want to configure.  
3. Click RAID Management > Configuration to display the Configuration dialog:  
4. Select the option for the mode that you want to change to:  
Stripe - Maximum Capacity and Performance (RAID 0)  
Mirror - Maximum Data Protection (RAID 1)  
Individual Drives (JBOD)  
Selecting the . . . option  
Displays a volume dialog for specifying the . . .  
Stripe or Mirror  
Volume name for the new RAID array:  
Note that the exFAT  
(extended File Allocation  
Table) format is not RAID  
configurable.  
Individual Drives  
Volume name and file format for each drive:  
MANAGING AND CUSTOMIZING YOUR MY BOOK THUNDERBOLT DUO DEVICE – 13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
5. On the volume dialog:  
a. If you want to change the name of a volume, type over the name in the Volume  
Name box.  
b. If you are converting to individual drives, select the option to specify the file  
format for each volume:  
HFS+J  
ExFAT  
c. Read the warning about the loss of data when you change the device  
configuration and select the I understand check box to signify that you accept  
the risk and activate the Configure button:  
Important: If you want to save any of the data that is on the device drives, back  
it up to another storage device before continuing with the configuration change.  
d. Click Configure to begin the configuration change.  
6. When prompted, type your password and click OK to continue:  
7. During the configuration change, the WD Drive Utilities software:  
Displays a status bar to show the progress of the conversion  
Clears and then redisplays the Finder listing and desktop icon display to support  
the new device mode  
MANAGING AND CUSTOMIZING YOUR MY BOOK THUNDERBOLT DUO DEVICE – 14  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
8. The first time you configure to a new volume, a message asks if you want to use the  
device drives to back up with Time Machine:  
New Mirror Volume  
New Stripe Volume  
New Individual Drives Volumes  
Note: Currently the Encrypt Backup Disk check box only appears on computers using  
the Lion operating system. DO NOT select this check box if you have converted to  
a RAID volume. Your My Book Thunderbolt Duo device leverages the operating  
system to enable RAID configurations. The Stripe and Mirror RAID modes of your  
My Book Thunderbolt Duo device are software configured, and the Lion backup  
disk encryption feature is not compatible with software-configured RAID devices.  
If you do not want to use the Time Machine backup software, click:  
- Don’t Use on Lion  
- Cancel on Snow Leopard  
If you do want to use the Time Machine backup software, then for:  
- A stripe or mirror RAID volume, click Use as Backup Disk and skip to step 10  
on page 16.  
- Individual drives volumes, proceed to step 9.  
9. To use JBOD mode as a backup disk with Time Machine in HFS+J only:  
a. Select the volume that you want to use:  
My Book Thunderbolt Duo - A  
My Book Thunderbolt Duo - B  
MANAGING AND CUSTOMIZING YOUR MY BOOK THUNDERBOLT DUO DEVICE – 15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
b. Depending on your computer’s operating system:  
• Using Snow Leopard, click Use as Backup Disk and skip to step 10.  
• Using Lion:  
- If you want to create a password to secure your backup files, select the  
Encrypt Backup Disk check box and proceed to step c.  
- If you do not want to create a password to encrypt your backup files, click  
Use as Backup Disk and skip to step 10.  
c. Click Use as Backup Disk and complete the backup password dialog that  
displays:  
d. Click Encrypt Disk and proceed to step 10.  
10. After the configuration change completes, click OK to close the completion message  
display:  
Note: The completion message changes to reflect the mode you have changed to.  
11. Go to http://support.wdc.com and see Knowledge Base answer ID 7 for information  
about downloading and restoring the WD software and disk image.  
Erasing the Device Drives  
CAUTION! Erasing a drive permanently deletes all of the data on the drive. Always  
back up the data on the drive before erasing it.  
Note: Erasing your device drives also deletes the WD software and all of the support  
files, utilities, and user manual files. You can download these to restore your  
device to its original configuration after erasing the drives. (See Knowledge Base  
answer ID 7 at http://support.wdc.com for information about downloading and  
restoring the WD software and disk image.)  
To erase your My Book Thunderbolt Duo device drives:  
1. Click Go > Applications > WD Drive Utilities to display the WD Drive Utilities screen  
MANAGING AND CUSTOMIZING YOUR MY BOOK THUNDERBOLT DUO DEVICE – 16  
Download from Www.Somanuals.com. All Manuals Search And Download.  
         
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
2. If you have more than one supported storage device or drive connected to your  
computer, select the one that you want to erase.  
3. Click Drive Erase to display the Drive Erase dialog:  
For RAID Array Configurations  
For Individual Drives  
4. On the Drive Erase dialog:  
a. For individual drives, select the check box for each drive that you want to erase:  
Erase Drive A  
Erase Drive B  
b. If you want to perform a secure erase operation on a drive, select its Perform a  
secure erase check box.  
Note: Selecting this option ensures all data on the device is erased. This will take several  
hours to complete. If you choose not to select this option, a quick erase will be  
performed and the data may be recoverable using disk recovery software.  
c. If you want to change the name of a volume, type over the name in the Volume  
Name box.  
d. For individual drives, select the option to specify the file format for each volume:  
HFS+J  
ExFAT  
Note that the exFAT (extended File Allocation Table) format is not RAID  
configurable.  
MANAGING AND CUSTOMIZING YOUR MY BOOK THUNDERBOLT DUO DEVICE – 17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
e. Read the warning about the loss of data when you erase the drive and select the  
I understand check box to signify that you accept the risk and activate the  
Erase Drive button:  
Important: If you want to save any of the data that is on the device drives,  
back it up to another device before continuing with the drive erase.  
f. Click Erase Drive to begin the erase operation.  
5. When prompted, type your password and click OK to continue:  
6. After the drive erase operation completes, click OK to close the completion message  
display:  
7. Go to http://support.wdc.com and see Knowledge Base answer ID 7 for information  
about downloading and restoring the WD software and disk image.  
Registering the Device  
The WD Drive Utilities software uses your computer’s Internet connection to  
register your device. Registering the device provides free technical support during the  
warranty period and keeps you up-to-date on the latest WD products.  
To register your device:  
1. Make sure that your computer is connected to the Internet.  
2. Click Go > Applications > WD Drive Utilities to display the WD Drive Utilities  
screen (see Figure 3 on page 9).  
MANAGING AND CUSTOMIZING YOUR MY BOOK THUNDERBOLT DUO DEVICE – 18  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
3. If you have more than one supported storage device or drive connected to your  
computer, select the one that you want to register.  
4. Click Registration to display the Registration dialog:  
5. On the Registration dialog:  
a. Type your first name in the First name box.  
b. Type your last name in the Last name box.  
c. Type your e-mail address in the E-mail address box.  
d. Type the serial number of your My Book Thunderbolt Duo device in the Device  
serial number box.  
e. Select your language in the Preferred language box.  
f. Select or clear the Yes, I want to receive communication... check box to  
specify whether you want to receive e-mail notifications about software updates,  
product enhancements, and price discount opportunities.  
g. Click Register Drive.  
Restoring the WD Software and Disk Image  
In addition to deleting all of the data on your device, erasing or reformatting the device  
drives also removes the WD Drive Utilities software and all of the support files, utilities,  
and user manual files.  
If you ever need to remove and reinstall the WD software on your computer, or move the  
WD software and disk image on your device drives. To do this, after you have erased or  
ID 7.  
MANAGING AND CUSTOMIZING YOUR MY BOOK THUNDERBOLT DUO DEVICE – 19  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
Safely Dismounting the Device Drives  
CAUTION! To prevent data loss, close all active windows and applications before  
shutting down or disconnecting the device drives.  
Use the My Book Thunderbolt Duo Finder listing or desktop icon to safely dismount the  
device drives:  
1. Right- or control-click the My Book Thunderbolt Duo Finder listing or desktop icon  
and select Eject “My Book Thunderbolt Duo”:  
Finder Listing Display  
Desktop Icon Display  
2. If you have converted your device to individual drives, eject both the A and B  
volumes.  
You might hear the drives power down.  
3. Wait for the Finder listing or desktop icon to disappear before disconnecting the  
device.  
MANAGING AND CUSTOMIZING YOUR MY BOOK THUNDERBOLT DUO DEVICE – 20  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
Replacing a Drive  
4
This chapter includes the following topics:  
Determining Which Drive Failed  
Whether the application is running or not, the WD Drive Utilities software continuously  
monitors the operational condition of your My Book Thunderbolt Duo drives. When a  
drive fails, the utility displays a warning message, depending on the configuration of your  
system:  
For a striped RAID 0 configuration:  
For a mirrored RAID 1 configuration:  
For an individual drives JBOD configuration:  
As prompted for a RAID configuration, use the WD Drive Utilities software to determine  
For a JBOD configuration, the warning message indicates the drive that failed.  
REPLACING A DRIVE – 21  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
Contacting WD Technical Support  
Knowledge Base answer ID 8644 for information about obtaining a replacement drive.  
When contacting Technical Support, have the following information ready:  
• The serial number of your My Book Thunderbolt Duo device  
• Date of purchase  
• The serial number of each internal hard drive you need to replace  
See steps 1 through 8 of the following procedure for removing the drive to see the  
serial number.  
Removing and Replacing the Drive  
Your My Book Thunderbolt Duo dual-drive storage device is a limited user-serviceable  
device. You can easily replace the hard drives inside the enclosure.  
Important: Only use WD Caviar® Green™ hard drive assemblies to replace the drives in  
your My Book Thunderbolt Duo device enclosure. Using any other hard drive assembly  
voids the warranty for your My Book Thunderbolt Duo.  
After receiving the replacement drive, replace the failed drive as follows:  
1. If the device is still operational, safely dismount the drives from your computer.  
2. Important: To avoid electrostatic discharge (ESD) damage, ground yourself by  
touching a grounded metal object before handling the device.  
3. Disconnect the Thunderbolt cables from the Thunderbolt ports on the back of the  
device enclosure.  
4. Disconnect the AC adapter cable from the power connector.  
5. Place the device on a clean and stable surface.  
6. Firmly push down on the top cover button to release the latch and open the top  
cover:  
3
1
2
REPLACING A DRIVE – 22  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
7. Lift and loosen the thumbscrew that secures the drive cover plate and remove the  
plate:  
2
1
3
8. Using the pull tab, carefully lift the faulty drive out of the enclosure:  
Note: Though the drives are labeled Drive A and Drive B, it is  
their enclosure locations that determine the drive  
designations used by the WD Drive Utilities software.  
As you view them from the front of the enclosure:  
The drive in the . . . enclosure slot  
Is drive . . .  
Left  
A
B
Right  
Switching the drives from one enclosure slot to the  
other would have no impact on the operation of your  
My Book Thunderbolt Duo device or the WD Drive  
Utilities software. If you do that, just remember that  
regardless of the label on the drive, the status and  
configuration of:  
“Drive A” refers to the drive in the left enclosure  
slot  
“Drive B” refers to the drive in the right enclosure  
slot  
REPLACING A DRIVE – 23  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
9. Gently slide the replacement drive assembly into the enclosure until it is fully  
inserted:  
10. Replace the drive cover plate and secure it with the thumbscrew:  
3
1
2
Note: Do not overtighten the thumbscrew.  
REPLACING A DRIVE – 24  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
11. Close the top cover and firmly push down on the top cover button until it snaps into  
place:  
1
2
12. If the WD Drive Utilities software is not already running, click Go > Applications >  
WD Drive Utilities to display the WD Drive Utilities screen (see Figure 3 on page 9).  
13. Reconnect the AC adapter cable to the power connector on the back of the device  
enclosure.  
14. Reconnect the Thunderbolt cables.  
15. Depending on the configuration of your device:  
If your device is configured as . . . THEN . . .  
A striped RAID 0 disk array  
The Finder listing and desktop icon for your  
My Book Thunderbolt Duo device do not  
reappear. In this case:  
a. If you have more than one supported device  
connected to your computer, select the one  
with the drive you replaced on the WD Drive  
Utilities screen and click RAID Management  
> Status to display the device status.  
b. Verify that the status display shows:  
Current Configuration - Stripe  
RAID Status - Offline  
Drive A Status and Drive B Status -  
Unknown for the drive that you replaced  
and Online for the other drive  
This indication means that you must  
reconfigure your striped RAID 0 disk array.  
(Continued)  
REPLACING A DRIVE – 25  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
If your device is configured as . . . THEN . . .  
A striped RAID 0 disk array (continued) c. Click Configuration to display the volume  
dialog for reconfiguring the RAID array.  
d. Use the device configuration procedure in  
at step 5 on page 14 to reconfigure the  
striped RAID 0 disk array.  
e. When the reconfiguration completes, the  
Finder listing and desktop icon for your  
My Book Thunderbolt Duo device reappear.  
f. Click Status and verify that the status display  
shows:  
Current Configuration - Stripe  
RAID Status - Online  
Drive A Status - Online  
Drive B Status - Online  
Your device is ready to use.  
A mirrored RAID 1 disk array  
a. Verify that the Finder listing and desktop icon  
for your My Book Thunderbolt Duo device  
reappear.  
b. If you have more than one supported device  
connected to your computer, select the one  
with the drive you replaced on the WD Drive  
Utilities screen and click RAID Management  
> Status to display the device status.  
c. Verify that the status display shows:  
Current Configuration - Mirror  
RAID Status - Degraded  
Drive A Status and Drive B Status -  
Rebuilding for the drive that you replaced  
and Online for the other drive  
This indication means that the WD Drive  
Utilities software is rebuilding your mirrored  
RAID 1 disk array.  
d. Wait for the rebuild operation to complete.  
This could take several hours.  
e. When the rebuild operation completes, the  
device status display shows:  
Current Configuration - Mirror  
RAID Status - Online  
Drive A Status - Online  
Drive B Status - Online  
Your device is ready to use.  
(Continued)  
REPLACING A DRIVE – 26  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
If your device is configured as . . . THEN . . .  
JBOD  
a. Verify that the Finder listing and desktop icon  
for the My Book Thunderbolt Duo drive that  
you did not replace reappear.  
The Finder listing and desktop icon for the  
new/replacement drive do not appear  
because you have to format it using the  
WD Drive Utilities Drive Erase function.  
b. If you have more than one supported device  
connected to your computer, select the one  
with the drive you replaced on the WD Drive  
Utilities screen and click Drive Erase to  
display the Drive Erase dialog.  
c. Use the drive erase procedure in “Erasing the  
to erase/reformat the replacement drive.  
CAUTION! Make sure you select the  
check box for the replacement drive.  
d. When the erase/reformat operation  
completes, verify that the Finder listing and  
desktop icon for replacement drive reappear.  
Your replacement drive is ready to use.  
16. Go to http://support.wdc.com and see Knowledge Base answer ID:  
7 for information about downloading and restoring the WD software and disk image  
8644 for information about returning the defective drive.  
Important: Do not disassemble the internal drive and attached assembly components.  
Return the entire internal drive assembly intact to WD.  
REPLACING A DRIVE – 27  
Download from Www.Somanuals.com. All Manuals Search And Download.  
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
Compliance and Warranty Information  
A
This appendix includes the following topics:  
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.  
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: Safety of  
Information Technology Equipment.  
Approuvé pour les Etats-Unis et le Canada. CAN/CSA-C22.2 No. 60950-1: 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  
Marking by the CE symbol indicates compliance of this system to the applicable Council  
Directives of the European Union, including the EMC Directive (2004/108/EC) and the  
Low Voltage Directive (2006/95/EC). A “Declaration of Conformity” in accordance with  
the applicable directives has been made and is on file at Western Digital Europe.  
GS Mark (Germany only)  
Machine noise - regulation 3. GPSGV: Unless declared otherwise, the highest level of  
sound pressure from this product is 70db(A) or less, per EN ISO 7779.  
Maschinenlärminformations-Verordnung 3. GPSGV: Der höchste Schalldruckpegel  
beträgt 70 db(A) oder weniger gemäß EN ISO 7779, falls nicht anders gekennzeichnet  
oder spezifiziert.  
COMPLIANCE AND WARRANTY INFORMATION – 28  
Download from Www.Somanuals.com. All Manuals Search And Download.  
                   
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
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.  
KC Notice (Republic of Korea only)  
B
(B )  
(
)
,
Environmental Compliance (China)  
᳝↦᳝ᆇ⠽䋼੠
ܗ
㋴  
䚼ӊৡ⿄  
݁Ӌ䫀 (Cr6+  
)
(Pb) (Cd) (Hg)  
໮⒈㘨㣃 (PBB) ໮⒈Ѡ㣃䝮 (PBDE)  
O
O
O
O
O
O
O
O
O
O
O
O
O
X
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
㺙义  
㺙໪໇  
ܝ
ᇐㅵ  
⬉⑤ᣝ䪂  
HDD ᠬᶊ  
EMI ໪໇  
Ͼᗻ
ᵓᴤ  
Kensington 䫕ᣝ䬂  
㶎ϱ 6-32x6.35mm  
㶎ϱ M3x5mm+5W  
ൖⳈᬃ㛮  
ޣ
䳛ᶊ  
ᵓ㺙䜡 (PCA)*  
⹀Ⲭ  
O
O
O
⬉㓚㒘ӊ  
⬉⑤䗖䜡఼  
⬉⑤㒓  
*
ᵓ㺙䜡
ᣀ᠔᳝ॄ
⬉䏃ᵓ (PCB) ঞ݊Ⳍᑨⱘ৘Ͼ㒘ӊǃIC ঞ䖲᥹఼DŽ  
O㸼⼎ℸ䚼ӊ᠔⫼ⱘ᠔᳝ഛ䋼ᴤ᭭Ё
৿ⱘℸ᳝↦៪᳝ᆇ⠽ԢѢ MCV
ޚ
Ёⱘ䰤
㽕∖DŽ  
X㸼⼎ℸ䚼ӊ᠔⫼ⱘഛ䋼ᴤ᭭Ё㟇ᇥ᳝ϔ⾡ᴤ᭭
৿ⱘℸ᳝↦៪᳝ᆇ⠽催Ѣ MCV
ޚ
Ёⱘ䰤
㽕∖DŽ  
ߎ
⦄ϔϾꢀĀ;āꢀⱘ᠔᳝ᚙ
މ
ϟˈ:'ꢀ䞛⫼ᆍ䆌ⱘᥦ䰸DŽ  
COMPLIANCE AND WARRANTY INFORMATION – 29  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
Warranty Information (All Regions Except Australia/  
New Zealand)  
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/  
warranty/policy.asp 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/warranty/policy.asp. 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.  
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 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,  
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/warranty/policy.asp), 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.  
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.  
COMPLIANCE AND WARRANTY INFORMATION – 30  
Download from Www.Somanuals.com. All Manuals Search And Download.  
           
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
Warranty Information (Australia/New Zealand)  
Nothing in this warranty modifies or excludes your legal rights under the Australian  
Competition and Consumer Act or the New Zealand Consumer Guarantees Act. This  
warranty identifies WD's preferred approach to resolving warranty claims which is likely  
to be quick and simple for all parties.  
No other warranties either express or implied by law, including but not limited to those  
contained in the Sale of Goods Act, are made with respect to the Product. If you  
purchased your Product in New Zealand for the purposes of a business, you  
acknowledge and agree that the New Zealand Consumer Guarantees Act does not  
apply. In Australia, our goods come with guarantees that cannot be excluded under the  
Australian Consumer Law. You are entitled to a replacement or refund for a major failure  
and compensation for any other reasonably foreseeable loss or damage. You are also  
entitled to have the goods repaired or replaced if goods fail to be of acceptable quality  
and the failure does not amount to a major failure. What constitutes a major failure is set  
out in the Australian Consumer Law.  
Obtaining Service  
WD values your business and always attempts to provide you the very best of service.  
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 e-mail support service at http://support.wdc.com. If the answer is  
not available or, if you prefer, please contact WD at the applicable telephone number  
shown in the front of this document.  
If you wish to make a claim, you should initially contact the dealer from whom you  
originally purchased the Product. If you are unable to contact the dealer from whom you  
originally purchased the Product, please visit our product support Web site 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 with your RMA number. If following receipt  
of a qualifying claim under this warranty, WD or the dealer from whom you originally  
purchased the Product determines that your claim is valid, WD or such dealer shall, at its  
discretion, either repair or replace the Product with an equivalent or better Product or  
refund the cost of the Product to you. You are responsible for any expenses associated  
with a claim under this warranty. The benefits provided to you under this warranty are in  
addition to other rights and remedies available to you under the Australian Competition  
and Consumer Act or the New Zealand Consumer Guarantees Act.  
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.  
Western Digital Technologies, Inc.  
3355 Michelson Drive, Suite 100  
Irvine, California 92612  
COMPLIANCE AND WARRANTY INFORMATION – 31  
Download from Www.Somanuals.com. All Manuals Search And Download.  
       
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
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  
specifications. The term of your warranty is 3 year in Australia and New Zealand, unless  
otherwise required by law. The term of your warranty period shall commence on the  
purchase date appearing on your purchase receipt from an authorized distributor or  
authorized reseller. Proof of purchase shall be required to be eligible for this warranty  
and to establish the commencement date of this warranty. Warranty service will not be  
provided unless the Product is returned to an authorized distributor, authorized reseller  
or regional WD return center where the Product was first shipped by WD. 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 (i) not purchased from  
an authorized distributor or authorized reseller, (ii) not used in accordance with WD  
specifications and instructions, (iii) not used for its intended function, or (iv) 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.  
PRODUCTS ARE COMPLEX AND FRAGILE ITEMS THAT MAY OCCASSIONALY FAIL  
DUE TO (A) EXTERNAL CAUSES, INCLUDING WITHOUT LIMITATION,  
MISHANDLING, EXPOSURE TO HEAT, COLD, AND HUMIDITY, AND POWER  
FAILURES, OR (B) INTERNAL FAULTS. SUCH FAILURES CAN RESULT IN THE  
LOSS, CORRUPTION, DELETION OR ALTERATION OF DATA. NOTE THAT YOU  
SHALL BE RESPONSIBLE FOR THE LOSS, CORRUPTION, DELETION OR  
ALTERATION OF DATA HOWSOEVER CAUSED, AND FOR BACKING UP AND  
PROTECTING DATA AGAINST LOSS, CORRUPTION, DELETION OR ALTERATION.  
YOU AGREE TO CONTINUALLY BACK UP ALL DATA ON THE PRODUCT, AND TO  
COMPLETE A BACKUP PRIOR TO SEEKING ANY GENERAL SERVICE AND  
TECHNICAL SUPPORT FROM WD.  
In Australia, if the Product is not of a kind ordinarily acquired for personal, domestic or  
household use or consumption, provided it is fair and reasonable to do so, WD limits its  
liability to replacement of the Product or supply of equivalent or better Product.  
This warranty 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. This warranty is WD’s sole  
manufacturer's warranty and is applicable only to Products sold as new.  
COMPLIANCE AND WARRANTY INFORMATION – 32  
Download from Www.Somanuals.com. All Manuals Search And Download.  
   
MY BOOK THUNDERBOLT DUO  
USER MANUAL  
K
Index  
KC notice (Republic of Korea) 29  
Kensington security slot 5  
Kit contents 2  
A
Accessories, optional 2, 3  
L
B
Limited warranty information 30  
Box contents 2  
O
C
Obtaining service 30, 31  
Online support, accessing ii  
Operating system compatibility 3  
Optional accessories 2  
CAUTION  
about disconnecting the system 20  
about erasing the drives 16  
China RoHS compliance 29  
Compliance, regulatory 28  
Configurations, RAID 1  
Connecting the device 6  
P
Physical description 3  
Power adapter, changing 6  
Power/activity LED 4  
Precautions for handling the system 5  
Product features 1  
D
Device  
compatibility 3  
connecting 6  
disk formats 3  
drive diagnostics and status checks 11  
drive erase function 16  
features 1  
Q
Quick drive test 11  
R
RAID Management  
handling precautions 5  
hardware 2  
Configuration dialog 13  
Status display 12  
registration 10  
RAID modes 1  
Diagnostics dialog 11  
Disconnecting the system 20  
Disk drive formats 3  
Disk image, downloading and restoring 19  
Drive replacement procedure 21  
Drive Utilities  
configuration, changing 13  
status, checking 12  
Registering the device 18  
Registration dialog 19  
Regulatory compliance 28  
Replacing a drive 21  
Restoring the software disk image 19  
RoHS compliance 29  
device registration function 10, 18  
diagnostics function 10  
drive erase function 10, 16  
RAID management function 10, 12  
S
S.M.A.R.T. status check 10  
Safely dismounting drives 20  
Safety compliance 28  
Service and support, WD ii  
E
Ejecting the drives 20  
Environmental compliance, China 29  
Erasing the drives 16  
T
CAUTION about erasing the drives 16  
Technical support, contacting ii  
Thunderbolt cable 2  
Thunderbolt ports 3  
Time Machine, using with 7, 15  
F
FCC information, class B 28  
Full media scan 11  
G
W
GNU General Public License 29  
Warranty information 30, 31, 32  
WD service ii, 30, 31  
H
WD technical support, contacting ii  
Handling precautions 5  
INDEX – 33  
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, the WD logo, and My Book are registered trademarks and My Book Thunderbolt and Data Lifeguard  
are trademarks of Western Digital Technologies, Inc. Thunderbolt and the Thunderbolt logo are trademarks of Intel  
Corporation in the U.S. and/or other countries. Other marks may be mentioned herein that belong to other companies.  
© 2012 Western Digital Technologies, Inc. All rights reserved.  
Western Digital  
3355 Michelson Drive, Suite 100  
Irvine, California 92612 U.S.A.  
4779-705071-A02 Aug 2012  
Download from Www.Somanuals.com. All Manuals Search And Download.  

Weslo Treadmill WLTL19323 User Manual
Whirlpool Cooktop GCI3061X User Manual
Whirlpool Oven GSC308PRB01 User Manual
White Lawn Mower 11A 702A190 User Manual
White Rodgers Furnace FC9S User Manual
Wild Planet Games Puku Power Sign User Manual
Zanussi Convection Oven 240201 User Manual
Zanussi Range ZCM 7902 User Manual
Zanussi Washer FL 12 User Manual
Zanussi Washer TE 825 V User Manual