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

$ srvctl start nodeapps -n node_name
Loss of connectivity to OCR and voting disk causes the cluster to panic
If the CVM master node looses connectivity to the SAN, the default settings for
the disk detach policy (global) and the disk group fail policy (dgdisable) causes
the Oracle Cluster Registry (OCR) and voting disk to be disabled from all nodes,
thereby panicking the cluster.
Update the default settings of the disk detach policy to global and the disk group
fail policy to leave for OCR and voting disk on all SF Oracle RAC disk groups.
To set the disk policies for OCR and voting disk
1
Log in to one of the nodes as the root user.
2
Set the policies on all SF Oracle RAC disk groups as follows:
# vxdg -g dg_name set diskdetpolicy=global
# vxdg -g dg_name set dgfailpolicy=leave
Troubleshooting Oracle Clusterware health check warning messages
Table 3-22 lists the warning messages displayed during the health check and
corresponding recommendations for resolving the issues.
Table 3-22
Troubleshooting Oracle Clusterware warning messages
RecommendationPossible causesWarning
■ Bring the cvm group online to
start Oracle Clusterware:
# hagrp -online cvm \
-sys system_name
■ Check the VCS log file
/var/VRTSvcs/log/engine_A.log
to determine the cause and fix
the issue.
Oracle Clusterware is not
started.
Oracle Clusterware is
waiting for dependencies
such as OCR or voting disk
or private IP addresses to be
available.
Oracle Clusterware
is not running.
Troubleshooting SF Oracle RAC
Troubleshooting Oracle
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