I have 2 hp-ux servers as a cluster and there is an oracle database running on these servers. They share Eva discs for the database. After a firmware update of the EVA, the servers came up and the db as normally was accessible through the a-node. But the db was behaving very strange and it had to be brought down. After that I rebooted the server (a-node) but when the db came up, was the db on the b-node, so a normal failover for so far. after that I brought the a-node down again and also the b-node. The a-node has been then brought up first but without th db.... I would think when the primary node comes up, the db will come up together with it but this was not the case. When I bring up the b-node, the db comes up with it and is available for use.
Question: how can I make the db come up with the a-node again and leave the b-node as a failover server in the cluster. Because now the a-node is not a failover server because when the b-node goes down, the db does not failover to the a-node. Need some commands to figure out what the problem can be. This is not a Oracle RAC it is a hp-ux cluster. I am not familiar with hp-ux. Some help is appreciated.