STATD(1M) Maintenance Commands STATD(1M)


NAME


statd - network status monitor

SYNOPSIS


/usr/lib/nfs/statd


DESCRIPTION


statd is an intermediate version of the status monitor. It interacts with
lockd(1M) to provide the crash and recovery functions for the locking
services on NFS. statd keeps track of the clients with processes which
hold locks on a server. When the server reboots after a crash, statd
sends a message to the statd on each client indicating that the server
has rebooted. The client statd processes then inform the lockd on the
client that the server has rebooted. The client lockd then attempts to
reclaim the lock(s) from the server.


statd on the client host also informs the statd on the server(s) holding
locks for the client when the client has rebooted. In this case, the
statd on the server informs its lockd that all locks held by the
rebooting client should be released, allowing other processes to lock
those files.


lockd is started by automountd(1M), mount_nfs(1M), and share(1M) if NFS
automounts are needed.

FILES


/var/statmon/sm

lists hosts and network addresses to be contacted after a reboot


/var/statmon/sm.bak

lists hosts and network addresses that could not be contacted after
last reboot


/var/statmon/state

includes a number which changes during a reboot


/usr/include/rpcsvc/sm_inter.x

contains the rpcgen source code for the interface services provided
by the statd daemon.


SEE ALSO


svcs(1), automountd(1M), lockd(1M), mount_nfs(1M), share(1M), svcadm(1M),
attributes(5), smf(5)


NOTES


The crash of a server is only detected upon its recovery.


The statd service is managed by the service management facility, smf(5),
under the service identifier:

svc:/network/nfs/status


Administrative actions on this service, such as enabling, disabling, or
requesting restart, can be performed using svcadm(1M). The service's
status can be queried using the svcs(1) command.


If it is disabled, it will be enabled by mount_nfs(1M), share_nfs(1M),
and automountd(1M) unless its application/auto_enable property is set to
false.


November 18, 2004 STATD(1M)