VERITAS Volume Manager 4.1 Administrator's Guide

Administering Disks

Removing Disks

Chapter 2 93

Removing Disks

NOTE You must disable a disk group as described in “Disabling a Disk Group” on page

172 before you can remove the last disk in that group. Alternatively, you can

destroy the disk group as described in “Destroying a Disk Group” on page 172.

You can remove a disk from a system and move it to another system if the disk is failing or

has failed. Before removing the disk from the current system, you must:

Step 1. Stop all activity by applications to volumes that are conﬁgured on the disk that is to

be removed. Unmount ﬁle systems and shut down databases that are conﬁgured on

the volumes.

Step 2. Use the following command to stop the volumes:

# vxvol stop volume1 volume2 ...

Step 3. Move the volumes to other disks or back up the volumes. To move a volume, use

vxdiskadm to mirror the volume on one or more disks, then remove the original

copy of the volume. If the volumes are no longer needed, they can be removed

instead of moved.

Before removing a disk, make sure any data on that disk has either been moved to other disks

or is no longer needed. Then remove the disk using the vxdiskadm utility, as follows:

Step 1. Select menu item 2 (Remove a disk) from the vxdiskadm main menu.

Step 2. At the following prompt, enter the disk name of the disk to be removed:

Remove a disk

Menu: VolumeManager/Disk/RemoveDisk

Use this operation to remove a disk from a disk group. Thisoperation takes a disk

name as input. This is the same name that you gave to the disk when you added the

disk to the diskgroup.

Enter disk name [<disk>,list,q,?] mydg01

Step 3. If there are any volumes on the disk, VxVM asks you whether they should be

evacuated from the disk. If you wish to keep the volumes, answer y. Otherwise,

answer n.

Step 4. At the following veriﬁcation prompt, press Return to continue: