Monday, February 9, 2009

Identify master node in RAC

1. Check the ocssd.log file.

db1p:$CRS_HOME/log/db1p/cssd$grep -i "master node" ocssd.log | tail -1
[ CSSD]CLSS-3001: local node number 1, master node number 2

or

db2p:$CRS_HOME/log/db2p/cssd$grep -i "master node" ocssd.log | tail -1
[ CSSD]CLSS-3001: local node number 2, master node number 2

2. "ocrconfig -showbackup" show you the last backup on master node.

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