MGEUPSD(8) Linux System Administrator's Manual MGEUPSD(8)NAMEmgeupsd-- monitor a state of MGE Pulsar UPS connected to RS-232 port.
SYNOPSIS
/sbin/mgeupsd [options] serial-device
DESCRIPTIONmgeupsd is a daemon process that sits in the background and check state
of the UPS every 10 (by default) seconds. As soon as mgeupsd senses
that the power is failing it notifies init(8) and init will execute the
powerwait and powerfail entries. If mgeupsd senses that the power has
been restored, it notifies init again and init will execute the
powerokwait entries. If mgeupsd senses that the UPS batteries has less
than 20% of its energy it notifies init again and init will execute the
powerfailnow entries.
OPTIONS-pwroff
turn ups off.
-q same as -pwroff.
-l use syslog for reporting. off by default, but very useful
option.
-i N set UPS checking interval to N seconds. Default 10
-li N set to N interval for reporting battery low status. Usually if
battery low status reported init must start immediate shutdown.
When shutdown started it must kill mgeupsd. If mgeupsd not
killed during N seconds the low battery status will be reported
again. Default 30
-s on|off
turn power saving mode on or off (see UPS manual for more infor‐
mation about power saving mode)
-p on|off
turn total discharge protection on or off (see UPS manual for
more information about total discharge protection)
-t trace_file
turn on trace of UPS<->computer communication protocol. Use
only for debugging - this produce a huge output. Since
trace_file stay opened all time to its remove you must kill mge‐
upsd before.
serial-device
Some serial port that is connected to your MGE Pulsar device.
Since version 0.3 you may use your UPS not only for protecting the com‐
puter, powered from UPS. You may connect to computer UPS which protect
any other equipment (f.e. rack-mount modems). For this case there are
some additional options:
-pwrfile filename
Change power status filename from default (/etc/powerstatus) to
something else.
-process pid
Change pid of process to send SIGPWR from default (1 - init) to
pid. mgeupsd check is this process running.
-run /path/cmd
Don't send SIGPWR at all, but run specified program & give power
status file as a first argument. Note that program must be spec‐
ified with full path.
-swpwr W,B
Switch (turn off/on) power. Argument W set the time in minutes
to wait before turning power back to on. Argument B set the time
in seconds to wait before turning power off. You may set only
one time (f.e. -swpwr W or -swpwr ,B or even -swpwr ,) - in this
case unspecified time will be set to 0. Note that the time
before power off must be in seconds, but the time before power
on - in minutes. If waiting time for turn UPS back to on set to
0, power will be turned off just about 5 seconds.
DIAGNOSTICS
Just because UPS communicate with macine through RS-232 interface mge‐
upsd report to syslog if communication with UPS lost. Mgeupsd will
notify you about this fact every minute. When it sees that the connec‐
tion has been restored it will say so.
BUGS
Well, when you found bug in this program send me E-mail about this.
SEE ALSOshutdown(8), init(8), inittab(5).
AUTHOR
Stanislav Voronyi, stas@esc.kharkov.com
Dec 23, 1998 MGEUPSD(8)
