Wednesday, August 29, 2018


# ./crsctl start cluster -all
CRS-6706: Oracle Clusterware Release patch level ('459864538') does not match Software patch level ('1175331221'). Oracle Clusterware cannot be started.
CRS-4000: Command Start failed, or completed with errors.

Case 1: When the CRS nodes have different patches or missing patch on one of the node. Then you need to apply the missing patch.

case2: <<our case above>>
Even despite having same patchset, the opatch lsinventory showed different patch set.This was on

Execute"<GI_HOME>/crs/install/ -patch" as root 

This fixed the issue.