How to Verify the Sun Cluster HA for Oracle Installation

1. Log in to the node monitoring the resource group that contains the Oracle resources and set the Oracle environment variables.

   Log in as oracle_id to the node that currently masters the Oracle resource group and set the environment variables ORACLE_SID and ORACLE_HOME.

2. Confirm that you can start the Oracle instance from this node.

3. Confirm that you can connect to the Oracle instance.

   Use the sqlplus command with the tns_service variable defined in the tnsnames.ora file:

   # sqlplus user/passwd@tns_service

4. Shut down the Oracle instance.

   Because the Oracle instance is under Sun Cluster control, Sun Cluster restarts it afterward.

5. Switch the resource group that contains the Oracle database resource to another node in the cluster.

   For example:

   # scswitch -z -g rg-name -h phys-nodename

6. Log in to the node now that contains the resource group and repeat the checks listed in Step 1.

   Log in as oracle_id to the new master node and confirm interactions with the Oracle instance.