STATD(8) Maintenance Commands and Procedures STATD(8)
NAME
statd - network status monitor
SYNOPSIS
/usr/lib/nfs/statdDESCRIPTION
statd is an intermediate version of the status monitor. It interacts
with
lockd(8) 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(8),
mount_nfs(8), and
share(8) 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),
attributes(7),
smf(7),
automountd(8),
lockd(8),
mount_nfs(8),
share(8),
svcadm(8)NOTES
The crash of a server is only detected upon its recovery.
The
statd service is managed by the service management facility,
smf(7), 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(8). The
service's status can be queried using the
svcs(1) command.
If it is disabled, it will be enabled by
mount_nfs(8),
share_nfs(8),
and
automountd(8) unless its
application/auto_enable property is set
to
false.
November 18, 2004 STATD(8)
