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A-42 Dell PowerVault 720N, 740N, and 760N System Administrator and Command Reference Guide
NAME
halt - stop the filer
SYNOPSIS
halt [ -d ] [ -t
mins
]
DESCRIPTION
halt flushes all cached data to disk and drops into the monitor.
NFS clients can maintain use of a file over a halt or reboot (although experienc-
ing a failure to respond during that time), but CIFS clients cannot do so safely.
Therefore, if the filer is running CIFS, the halt command invokes cifs terminate,
which requires the -t option. If the filer has CIFS clients and you invoke halt with-
out -t, it displays the number of CIFS users and the number of open CIFS files.
Then it prompts you for the number of minutes to delay. cifs terminate automat-
ically notifies all CIFS clients that a CIFS shut-down is scheduled in
mins
minutes,
and asks them to close their open files. CIFS files that are still open at the time
the filer halts will lose writes that had been cached but not written.
halt logs a message in /etc/messages to indicate that the filer was halted on
purpose.
OPTION
-d Dumps system core before halting.
-t
mins
Halts after the indicated number of minutes, or after all CIFS files
that were open have been closed, whichever is sooner.
SEE ALSO
cifs_terminate, reboot, savecore, messages
halt