Veritas Storage Foundation 5.1 SP1 for Oracle RAC Administrator"s Guide (5900-1512, April 2011)

To replace a disk in a coordinator diskgroup when the cluster is online

Make sure system-to-system communication is functioning properly.

Make sure that the cluster is online.

# vxfenadm -d

I/O Fencing Cluster Information:

================================

Fencing Protocol Version: 201

Fencing Mode: SCSI3

Fencing SCSI3 Disk Policy: dmp

Cluster Members:

* 0 (galaxy)

1 (nebula)

RFSM State Information:

node 0 in state 8 (running)

node 1 in state 8 (running)

Import the coordinator disk group.

The file /etc/vxfendg includes the name of the disk group (typically,

vxfencoorddg) that contains the coordinator disks, so use the command:

# vxdg -tfC import ‘cat /etc/vxfendg‘

where:

-t specifies that the disk group is imported only until the node restarts.

-f specifies that the import is to be done forcibly, which is necessary if one

or more disks is not accessible.

-C specifies that any import locks are removed.

If your setup uses VRTSvxvm version 5.1 RP2 (or later) or 5.1 SP1 (or later),

then skip to step 5. You need not set coordinator=off to add or remove disks.

For other VxVM versions, perform this step:

Turn off the coordinator attribute value for the coordinator disk group.

# vxdg -g vxfencoorddg set coordinator=off

To remove disks from the coordinator disk group, use the VxVM disk

administrator utility vxdiskadm.

Perform the following steps to add new disks to the coordinator disk group:

■ Add new disks to the node.

Administering SF Oracle RAC and its components

Administering I/O fencing

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