Replacing a Disk

This procedure replaces an existing disk with a new physical disk, moves any volumes to the new disk, and attempts to recover any redundant (mirrored or RAID-5) volumes on the disk. Non-redundant volumes cannot be recovered and should be restored from backup, if possible. If the disk being replaced is a boot disk, this procedure also sets up the new disk as a boot disk.

You may need to replace a disk if the disk fails and/or needs to be removed and repaired. You can use this task to reconnect a disk that has been disconnected in preparation for replacement (see “Disconnecting a Disk”).

If you replace a healthy disk, you need to remove the disk from its disk group and place it in the free disk pool before you replace the disk (see “Removing a Disk”). If the disk to be replaced has failed and is disconnected, you do not need to remove the disk.

To replace a disk

1. Select the disk to be replaced.

2. Choose Disks > Replace (Selected menu) or Disk Replace (Command Launcher).

3. Complete the Replace Disk dialog box as follows:

   Disk Name:	If the correct disk name is not already displayed in this field, type the Volume Manager disk name for the disk to be replaced or click Browse to select the disk.
   New Physical Disk:	Type the physical disk name for the new (replacement) disk or click Browse to select a disk.
   Options	To set up any new disks on the system, click Scan Disks. This runs the disk setup commands appropriate for the operating system.

   When you have provided all necessary information in the dialog box, click OK.

   Notes:

   This task requires the name of the disk to be replaced and the replacement disk name. The disk to be replaced must be disconnected or removed from its disk group. If the disk has not failed, you need to remove the disk from its disk group and put it in the free disk pool before you replace the disk. The new disk can be a disk in the free disk pool or an uninitialized disk. If the new disk is uninitialized, this task places the disk under Volume Manager control. The new disk is placed in the old disk's disk group.