HOW TO CHECK CLUSTER VERSION
To check the software versions on a single node. Software version is the lastest version installed in on an cluster.
You would use this option,When you do the rolling upgrade.
$ crsctl query crs softwareversion [hostname]
Active version is lowest version anywhere in the cluster. This is the command you would normally need to use
$ crsctl query crs activeversion
HOW TO CHECK CLUSTERNAME
The version of oracle Clusterware must be always greater than the oracle products installed in the clusters
Permanently operating oracle Clusterware (software version vs active version) is not supported.
$ORA_CRS_HOME/bin/cemutlo -n
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