VERITAS Volume Manager 3.1 Storage Administrator Administrator's Guide

Disk Tasks
Mirroring a Disk
Chapter 3114
Mirroring a Disk
This procedure mirrors (copies) all concatenated volumes on a disk onto
another disk. You can use this procedure to mirror any disk that contains
concatenated volumes.
To mirror all concatenated volumes on a disk
Step 1. Select the disk that contains the concatenated volumes to be mirrored
onto another disk.
Step 2. Choose Disks > Mirror (Selected menu) or Disk Mirror (Command
Launcher).
Step 3. Complete the Mirror Disk dialog box as follows:
When you have provided all necessary information in the dialog box,
click OK.
Disk Name: If the correct disk name is not already displayed in this
field, type the disk’s name or click Browse to select the
disk.
Options To specify the disk to contain the new mirrors, click the
Browse button next to the Target Disk(s) field and select
a disk.
Notes:
• This task requires a disk name.
• Only concatenated volumes that reside on a single disk are mirrored
onto the other disk. Any RAID-5, striped, or spanned volumes on the
disk are ignored.
• Only disks in the same disk group can be used to create the new
mirrors.
• The target disk must contain sufficient space to accommodate the
mirror(s).
• A new mirror cannot be created on a disk that already contains a copy
of the volume.
• If no disks are assigned, the Volume Manager uses available disk
space to create the mirror(s).