Dynamic failover of read-only file systems was added in the Solaris 2.6 release. Failover provides a high level of availability for read-only resources that are already replicated, such as man pages, other documentation, and shared binaries. Failover can occur anytime after the file system is mounted. Manual mounts can now list multiple replicas, much like the automounter in previous releases. The automounter has not changed, except that failover need not wait until the file system is remounted. See How to Use Client-Side Failover and Client-Side Failover for more information.