Western Digital My Book Thunderbolt Duo User Manual - Page 12

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. (See "Changing the Device Configuration" on page 13.) • 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