Mirroring a shared storage pool

Creating a failure group in the shared storage pool

You can create a mirrored copy of an existing shared storage pool.

• To create a failure group in the shared storage pool, run the failgrp command. Ensure that the size of the new failure group is more than or equal to the current pool size.
  Note: In the following example, the hdisk2 and hdisk3 failure groups are used to create a mirrored copy of the shared storage pool:

  failgrp -create -clustername clusterA -sp poolA -fg FG1: hdisk2 hdisk3

• On VIOS Version 2.2.3.0, or later, you can create up to a maximum of two failure groups in the shared storage pool.

Listing failure groups in the shared storage pool

You can view the list of all the failure groups in the shared storage pool.

• To list all the failure groups in the shared storage pool, run the failgrp command with the -list flag:

  failgrp -list -clustername clusterA -sp poolA

Changing an existing failure group attribute

You can change an existing failure group name in the shared storage pool.

1. To change an existing failure group name in the shared storage pool, run the failgrp command:

   failgrp -modify -clustername clusterA -sp poolA -fg FG1 -attr name=newFG

2. To check whether the failure group name is changed in the shared storage pool, run the failgrp command:

   failgrp -list -clustername clusterA -sp poolA

Removing an existing failure group