Use this procedure to prepare for the installation and configuration of SAP.
Become superuser on all of the nodes.
Configure the /etc/nsswitch.conf so that Sun Cluster HA for SAP starts and stops correctly in the event of a switchover or a failover.
On each node that can master the logical host that runs Sun Cluster HA for SAP, include one of the following entries for group in the /etc/nsswitch.conf file.
group: group: files [NOTFOUND=return] nis group: file [NOTFOUND=return] nisplus
Sun Cluster HA for SAP uses the su user command to start and probe SAP. The network information name service might become unavailable when a cluster node's public network fails. When you add one of the entries for group in the /etc/nsswitch.conf file, you ensure that the su(1M) command does not refer to the NIS/NIS+ name services if the network information name service is unavailable.