My current set up is 3 to 1 Cluster (SUN Cluster 3.2) running oracle database. Task is to reboot the servers. My query is about the procedure to do the same.
My understanding is suspend the databases to avoid switchover. Then execute the command scshutdown to down the cluster and i'll be at OK prompt. Please help with the correct procedure.
"scshutdown" will shutdown all nodes in the cluster at once. Is that what you want?
When all nodes are down you can restart them by typing "boot" at the OK prompt. After a "schutdown" there is no specific order to reboot the nodes. The first node up and running will start all resourcegroups, as long as they are allowed to run on it.
What do you mean with "3 to 1 cluster", a 3 node cluster?
If you want to shutdown and reboot the whole cluster at once, then yes scshutdown is your command.
If you only want to restart each of the nodes without having to shutdown your application, then you have to reboot each one of the nodes that is not running the app.
Failover the app and reboot the last node.