Western Digital My Passport Pro User Manual - Page 9

MY PASSPORT PRO USER MANUAL Note: If the External disks check box is selected on your Finder Preferences dialog, the My Passport Pro icon displays on your desktop: 5. The first time you connect the device to your computer, a message asks if you want to use it to back up with Time Machine: Note: The Encrypt Backup Disk check box does not appear on computers using the Snow Leopard operating system. DO NOT select this check box on Lion, Mountain Lion, or Mavericks systems. Your My Passport Pro device leverages the operating system to enable RAID configurations. The RAID modes of your My Passport Pro device are software configured, and the backup disk encryption feature is not compatible with software-configured RAID devices. If you want to use your device as a backup disk with Time Machine on Lion, Mountain Lion, or Mavericks, 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 12. If you want to use the Time Machine backup software, click Use as Backup Disk and complete the Time Machine setup: CONNECTING THE DEVICE AND GETTING STARTED - 6