IDENTIFY CLUSTER NAME & DETAILS IN ORACLE 11gR2

Identify  the cluster details in the command prompt in oracle 11gR2

$ $CRS_HOME/bin/cemutlo -n

To Check the cluster details

$ crsctl check cluster -all – to check the status of the Clusterware on all nodes
$ crsctl stop cluster -all – to stop the Oracle Clusterware stack on all nodes
$ crsctl start cluster -all – to start the Oracle Clusterware stack on all nodes

SE CRSCTL COMMAND TO CHECK THE HEALTH OF YOUR CLUSTERWARE. CLUVFY COMMAND
./crsctl check crs

YOU CAN ALSO CHECK CLUSTERWARE STATUS ON BOTH THE NODES USING
$crsctl check cluster

TO DETERMINE SOFTWARE VERSION (BINARY VERSION OF THE SOFTWARE ON A PARTICULAR CLUSTER NODE) USE
$ crsctl query crs softwareversion
$ crsctl query crs activeversion