VERITAS Volume Manager 3.1 Administrator's Guide

Disk Tasks
Taking a Disk Offline
Chapter 4186
Taking a Disk Offline
There are instances when you must take a disk offline. If a disk is
corrupted, you must disable it and remove it. You must also disable a
disk before moving the physical disk device to another location to be
connected to another system.
To take a physical disk offline, first remove the disk from its disk group
(see “Removing Disks”), and then place the disk in an “offline” state with
the following command:
# vxdisk offline device_name
For example, to take the device c1t1d0 off line, use the following
command:
# vxdisk offline c1t1d0
NOTE The device name is used here because the disk is no longer in a disk
group, so it does not have an administrative name.