Veritas Storage Foundation 5.1 SP1 Cluster File System Installation Guide (5900-1510, April 2011)

To set up disk-based I/O fencing using the installsfcfs

Start the installsfcfs with -fencing option.

# /opt/VRTS/install/installsfcfs -fencing

The installsfcfs starts with a copyright message and verifies the cluster

information.

Note the location of log files which you can access in the event of any problem

with the configuration process.

Confirm that you want to proceed with the I/O fencing configuration at the

prompt.

The program checks that the local node running the script can communicate

with remote nodes and checks whether Storage Foundation Cluster File System

5.1 SP1 is configured properly.

Review the I/O fencing configuration options that the program presents.

Type 2 to configure disk-based I/O fencing.

Select the fencing mechanism to be configured in this

Application Cluster [1-3,b,q] 2

Review the output as the configuration program checks whether VxVM is

already started and is running.

■ If the check fails, configure and enable VxVM before you repeat this

procedure.

■ If the check passes, then the program prompts you for the coordinator

disk group information.

Choose whether to use an existing disk group or create a new disk group to

configure as the coordinator disk group.

The program lists the available disk group names and provides an option to

create a new disk group. Perform one of the following:

■ To use an existing disk group, enter the number corresponding to the disk

group at the prompt.

The program verifies whether the disk group you chose has an odd number

of disks and that the disk group has a minimum of three disks.

■ To create a new disk group, perform the following steps:

■ Enter the number corresponding to the Create a new disk group option.

The program lists the available disks that are in the CDS disk format

in the cluster and asks you to choose an odd number of disks with at

least three disks to be used as coordinator disks.

149Configuring SFCFS for data integrity

Setting up disk-based I/O fencing using installsfcfs