7.8.1 Creating a Split Mirror Backup

Use this option to split a mirrored array, consisting of one or more RAID 1, RAID 1(Triple), RAID 10, or RAID 10(Triple) logical drives, into two arrays: a primary array and a backup array, with these characteristics:

  • The primary array and backup array will contain identical RAID 0 logical drives.
  • The primary array continues to be fully accessible to the operating system.
  • The backup array is hidden from the operating system and data on the drive is frozen.
    Note: You can use the backup array to restore the primary array with its original contents. See Re-mirroring, Rolling Back, or Reactivating a Split Mirror Backup.
  • The primary array includes the designation "Split Mirror Set Primary" as the device type.
  • The backup array includes the designation "Split Mirror Set Backup" as the device type.

If the array is protected by a spare drive, the drive is unassigned after the split.

To create a split mirror backup:

  1. In the Enterprise View, select a mirrored array.
  2. On the ribbon, in the Array group, click Split Mirror Backup.
  3. When prompted to create the backup array, click OK.