Your product includes 30 days of free telephone support during the warranty period. This 30- day period starts on the date of your first telephone contact with WD Technical Support. E-mail support is free for the entire warranty period and our extensive knowledge base is available 24/ 7.
User serviceable—When you need to replace a drive, just open the case and do it yourself. No tools are needed. WD Drive Utilities software—Keep your device performing at its best by configuring the drives, running diagnostics, and more. ABOUT YOUR WD STORAGE DEVICE – 1...
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 •...
• 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...
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.
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.
MY BOOK THUNDERBOLT DUO USER MANUAL Connecting the Device and Getting Started This chapter provides instructions for: Connecting the Device Installing the WD Drive Utilities Software Connecting the Device Depending on your region, if required, change the power adapter as follows: Installing Installing...
Page 11
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.
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.
Page 13
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 “Managing and Customizing Your My Book...
Restoring the WD Software and Disk Image Safely Dismounting the Device Drives 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: •...
Page 15
To run drive diagnostics and status checks: Click Go > Applications > WD Drive Utilities to display the WD Drive Utilities screen (see Figure 3 on page 9). 2. If you have more than one supported drive or storage device connected to your computer, select the one that you want to check.
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 •...
WD software and disk image.) To change the device configuration: Click Go > Applications > WD Drive Utilities to display the WD Drive Utilities screen (see Figure 3 on page 9). 2. If you have more than one supported storage device connected to your computer, select the one that you want to configure.
Page 18
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...
Page 19
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.
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.
Page 21
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...
To register your device: 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...
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 device to another computer and install the software there, you will need to restore the WD software and disk image on your 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: Right- or control-click the My Book Thunderbolt Duo Finder listing or desktop icon and select Eject “My Book Thunderbolt Duo”:...
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...
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: If the device is still operational, safely dismount the drives from your computer.
Page 27
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: •...
Page 28
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: Note: Do not overtighten the thumbscrew. REPLACING A DRIVE – 24...
Page 29
11. Close the top cover and firmly push down on the top cover button until it snaps into place: 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).
Page 30
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: •...
Page 31
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.
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.
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...
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.
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.
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.
MY BOOK THUNDERBOLT DUO USER MANUAL Index KC notice (Republic of Korea) 29 Kensington security slot 5 Kit contents 2 Accessories, optional 2 Limited warranty information 30 Box contents 2 Obtaining service 30 CAUTION Online support, accessing ii about disconnecting the system 20...
Page 38
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.
Need help?
Do you have a question about the My Book Thunderbolt Duo and is the answer not in the manual?
Questions and answers