The following ports need to be up on all the nodes of SF Oracle RAC cluster:
Port a (GAB)
Port b (I/O fencing)
Port d (ODM)
Port f (CFS)
Port h (VCS)
Port o (VCSMM - membership module for SF Oracle RAC)
Port v (CVM - kernel messaging)
Port w (CVM - vxconfigd)
Port u (CVM - to ship commands from slave node to master node)
Port y (CVM - I/O shipping)
The following command can be used to verify the state of GAB ports:
# gabconfig -a
GAB Port Memberships
Port a gen 7e6e7e05 membership 01 Port b gen 58039502 membership 01 Port d gen 588a7d02 membership 01 Port f gen 1ea84702 membership 01 Port h gen cf430b02 membership 01 Port o gen de8f0202 membership 01 Port u gen de4f0203 membership 01 Port v gen db411702 membership 01 Port w gen cf430b02 membership 01 Port y gen 73f449 membership 01
The data indicates that all the GAB ports are up on the cluster having nodes 0 and 1.
For more information on the GAB ports in SF Oracle RAC cluster, see the Symantec Storage Foundation for Oracle RAC Installation and Configuration Guide.