VERITAS Volume Manager 4.1 Administrator's Guide

Administering Disks

Enabling a Physical Disk

Chapter 2102

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

VxVM INFO V-5-2-998 Use this operation to enable access to a disk that was

disabled with 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)