Sun Cluster 2.2 Software Installation Guide

7.1.2 Setting Up the /etc/nsswitch.conf File

On each node that can master the logical host running Sun Cluster HA for Informix, modify the /etc/nsswitch.conf file so that "group" lookups are directed to files first. For example:

...
 group: files nisplus
 ...

Sun Cluster HA for Informix uses the su informix command when starting and stopping the database server.

Adding this setting will ensure that the su informix command does not refer to NIS or NIS+ when the network information name service is not available due to a failure of the public network.