All of the servers in a failover group should use the same authentication mechanism and name service. For example, a failover group should not use one server with NIS authentication and other servers with NIS+ authentication.
If a failover group does have different authentication mechanisms,
the servers might fail to obtain their existing non-smart card
mobile (NSCM) sessions if a user name contains the same characters
but the case is different, for example,
ps121664
, PS121664
, or
Ps121664
.