Taking a Disk Offline

There are instances when you must take a disk offline. If a disk is corrupted, you must disable the disk before removing 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 disk offline, use the vxdiskadm command:

1. Select menu item 10 (Disable (offline) a disk device) from the vxdiskadm main menu.
2. At the following prompt, enter the address of the disk you want to disable:
   Disable (offline) a disk device 
   Menu: VolumeManager/Disk/OfflineDisk 
   VxVM INFO V-5-2-474 Use this menu operation to disable all access to a disk device by the Volume Manager. This operation can be applied only to disks that are not currently in a disk group. Use this operation if you intend to remove a disk from a system without rebooting.
   NOTE: Many systems do not support disks that can be removed from 
      a system during normal operation. On such systems, the
      offline operation is seldom useful.
   Select a disk device to disable [<address>,list,q,?] c0t2d0

   The vxdiskadm program disables the specified disk.

3. At the following prompt, indicate whether you want to disable another device (y) or return to the vxdiskadm main menu (n):
   Disable another device? [y,n,q,?] (default: n)