Remote mount table synchronization

With NFS toolkit, a remote mount table synchronization binary code is installed in /usr/bin/sync_rmtab. This program is provided for synchronizing the client current mount table, /var/lib/nfs/rmtab, in the case of a NFS package failover. This synchronization process ensures NFS clients access NFS seamlessly in the case of the NFS package failover. The NFS control script, hanfs.sh, calls the synchronization program when the remote mount table needs to be synchronized.