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117Administering disks
Enabling a disk
8 After using the vxdiskadm command to replace one or more failed disks in a
VxVM cluster, run the following command on all the cluster nodes:
# vxdctl enable
Then run the following command on the master node:
# vxreattach -r accesname
where accessname is the disk access name (such as c0t1d0). This initiates
the recovery of all the volumes on the disks.
Alternatively, halt the cluster, reboot all the cluster nodes, and restart the
cluster.
If you do not perform this step for a cluster, the nodes may not be able to see
the disks, and the error Device path not valid will be displayed.
Enabling a 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
1 Select menu item 9 (Enable (online) a disk device) from the
vxdiskadm main menu.
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 a
disk 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 most needs to online a
disk directly, except when the disk is directly offlined.
Select a disk device to enable [<address>,list,q,?]
c0t2d0