To check the software version:
$CRS_HOME/bin/crsctl query crs softwareversion
To check the cluster name use,Oracle Clusterware version on node [hostname01] is [11.2.0.3.0]
$ORA_CRS_HOME/bin/cemutlo -n
To check the cluster name use,Oracle Clusterware version on node [hostname01] is [11.2.0.3.0]