VERITAS Volume Manager 3.5 Administrator's Guide (September 2004)

Administering Disks

Enabling a Physical Disk

Chapter 298

Enabling a Physical Disk

If you move a disk from one system to another during normal system

operation, VxVM does not recognize the disk automatically. The enable

disk task enables VxVM to identify the disk and to determine if this disk

is part of a disk group. Also, this task re-enables access to a disk that was

disabled by either the disk group deport task or the disk device disable

(ofﬂine) task.

To enable a disk, use the following procedure:

Step 1. Select menu item 9 (Enable (online) a disk device) from the vxdiskadm

main menu.

Step 2. At the following prompt, enter the device name of the disk to be enabled

(or enter list for a list of devices):

Enable (online) a disk device

Menu: VolumeManager/Disk/OnlineDisk

Use this operation to enable access to a disk that was disabledwith the “Disable

(offline) a disk device” operation. You can also use this operation to re-scan a

disk that may have been changed outside of the Volume Manager. For example, if

adisk is shared between two systems, the Volume Manager running on the other

system may have changed the disk. If so, you can use this operation to re-scan

the disk.

NOTE: Many vxdiskadm operations re-scan disks without user intervention. This

will eliminate the need to online a disk directly, except when the disk is

directly offlined.

Select a disk device to enable [<address>,list,q,?] c0t2d0

vxdiskadm enables the speciﬁed device.

Step 3. At the following prompt, indicate whether you want to enable another

device (y) or return to the vxdiskadm main menu (n):

Enable another device? [y,n,q,?] (default: n)