Veritas Storage Foundation 5.1 SP1 for Oracle RAC Release Notes (5900-1513, April 2011)

I/O fencing configuration

You can use the -fencing option with the installsfrac program to configure

I/O fencing.

Based on the fencing mechanism you want to use in the cluster, the installer

provides the following options to configure I/O fencing:

■ Disk-based I/O fencing - when you want to use disks as coordination points

■ Server-based I/O fencing - when you want to use at least one CP server as

coordination point

For more information, see the Veritas Storage Foundation for Oracle RAC

Installation and Configuration Guide.

Support for preferred fencing

Traditional fencing prevents a split-brain condition by allowing only one of

multiple sub-clusters to continue its operation in case a network partition disrupts

regular communication between nodes. The preferred fencing feature gives

preference to one sub-cluster over other sub-clusters in determining the surviving

sub-cluster. This preference is based on factors such as which of the sub-clusters

is running higher priority applications or the total importance of nodes which

form that sub-cluster or both.

See the Veritas Storage Foundation for Oracle RAC Installation and Configuration

Guide and the Veritas Storage Foundation for Oracle RAC Administrator's Guide

for more details.

List of depots in SF Oracle RAC 5.1 SP1

Table 1-2 lists the depots in SF Oracle RAC 5.1 SP1.

Table 1-2

List of depots

DescriptionName

Symantec License UtilitiesVRTSvlic

Veritas Volume Manager binariesVRTSvxvm

Veritas File System SDK - Manual PagesVRTSfssdk

Veritas Cluster ServerVRTSvcs

Symantec Product Authentication ServiceVRTSat

Storage Foundation for Oracle RAC Release Notes

Changes introduced in version 5.1 Service Pack 1