Provides crash and recovery functions for the locking services on NFS.
/usr/sbin/rpc.statd
The statd daemon interacts with the lockd daemon to provide crash and recovery functions for the locking services on Network File System (NFS). The statd daemon should always be started before the lockd daemon.
The statd daemon is started and stopped by the following SRC commands:
startsrc -s rpc.statd
stopsrc -s rpc.statd
The status monitor maintains information on the location of connections as well as the status in the /etc/sm directory, the /etc/sm.bak file, and the /etc/state file. When restarted, the statd daemon queries these files and tries to reestablish the connection it had prior to termination. To restart the statd daemon, and subsequently the lockd daemon, without prior knowledge of existing locks or status, delete these files before restarting the statd daemon.
The lockd daemon.
Network File System (NFS) Overview for System Management in AIX 5L Version 5.2 System Management Guide: Operating System and Devices.