Removing a Disk

This procedure removes a disk from its disk group and either places the disk in the free disk pool or removes the disk from Volume Manager control. If the disk is returned to the free space pool, the disk must be added to a disk group before it can be used for volumes (see “Adding a Disk to the Volume Manager”).

If the disk to be removed contains volumes, you must evacuate the disk before you remove the disk.

To remove a disk from a disk group or Volume Manager

Select the disk to be removed.
Choose Disks > Remove (Selected menu) or Disk Remove (Command Launcher).

Complete the Remove Disk dialog box as follows:

Disk Name(s):	If the correct disk name is not already displayed in this field, type the disk's name or click Browse to select the disk.
Select a destination for the disks:	Specify where to place the disk after removal: To remove the disk from its disk group and place it in the free disk pool, select Free Disk Pool. The disk will remain under Volume Manager control. To remove the disk from Volume Manager control, select Uninitialized State.

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

Notes:

This task requires a disk name. You also need to specify whether the disk should be placed in the free disk pool or removed from Volume Manager control.
If the disk contains a volume that has only one mirror and either has a mounted file system or is used as a swap area, you must evacuate the disk before you remove it.
When a disk is removed from a disk group or Volume Manager control, the disk cannot be accessed.
A disk that is in use (i.e. contains volumes) should not be removed. Removing a disk with volumes can result in loss of data or data redundancy. If volumes exist on the disk to be removed, you can use the Evacuate Disks task to move the volumes to another disk.
The last disk in a disk group cannot be removed. To remove the last disk in a disk group, the disk group must be destroyed. The last disk in the rootdg disk group can never be removed.
Any non-redundant volumes on the removed disk become disabled.

Removing a Disk

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To remove a disk from a disk group or Volume Manager