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

■ Set the value of the system-level attribute FencingWeight for each node

in the cluster.

For example, in a two-node cluster, where you want to assign galaxy five

times more weight compared to nebula, run the following commands:

# hasys -modify galaxy FencingWeight 50

# hasys -modify nebula FencingWeight 10

■ Save the VCS configuration.

# haconf -dump -makero

To enable group-based race policy, perform the following steps:

■ Make the VCS configuration writable.

# haconf -makerw

■ Set the value of the cluster-level attribute PreferredFencingPolicy as

Group.

# haclus -modify PreferredFencingPolicy Group

■ Set the value of the group-level attribute Priority for each service group.

For example, run the following command:

# hagrp -modify service_group Priority 1

Make sure that you assign a parent service group an equal or lower priority

than its child service group. In case the parent and the child service groups

are hosted in different subclusters, then the subcluster that hosts the

child service group gets higher preference.

■ Save the VCS configuration.

# haconf -dump -makero

To view the fencing node weights that are currently set in the fencing driver,

run the following command:

# vxfenconfig -a

Administering SF Oracle RAC and its components

Administering I/O fencing

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