HP Veritas Volume Manager 5.0 -UX 11i v3 manual Removing a disk from VxVM control

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Administering disks

Removing a disk from VxVM control

Removing a disk with no subdisks

To remove a disk that contains no subdisks from its disk group, run the vxdiskadm program and select item 2 (Remove a disk) from the main menu, and respond to the prompts as shown in this example to remove mydg02:

Enter disk name [<disk>,list,q,?] mydg02

VxVM NOTICE V-5-2-284 Requested operation is to remove disk mydg02 from group mydg.

Continue with operation? [y,n,q,?] (default: y) y

VxVM INFO V-5-2-268 Removal of disk mydg02 is complete.

Clobber disk headers? [y,n,q,?] (default: n) y

Enter y to remove the disk completely from VxVM control. If you do not want to remove the disk completely from VxVM control, enter n.

Removing a disk from VxVM control

After removing a disk from a disk group, you can permanently remove it from Veritas Volume Manager control by running the vxdiskunsetup command:

# /usr/lib/vxvm/bin/vxdiskunsetup c#t#d#

Caution: The vxdiskunsetup command removes a disk from Veritas Volume Manager control by erasing the VxVM metadata on the disk. To prevent data loss, any data on the disk should first be evacuated from the disk. The vxdiskunsetup command should only be used by a system administrator who is trained and knowledgeable about Veritas Volume Manager.

Removing and replacing disks

Note: A replacement disk should have the same disk geometry as the disk that failed. That is, the replacement disk should have the same bytes per sector, sectors per track, tracks per cylinder and sectors per cylinder, same number of cylinders, and the same number of accessible cylinders.

If failures are starting to occur on a disk, but the disk has not yet failed completely, you can replace the disk. This involves detaching the failed or failing disk from its disk group, followed by replacing the failed or failing disk with a new one. Replacing the disk can be postponed until a later date if necessary.