UPS e Linux

Da Wizard linux team wiki.

Mi è capitato di giocare con un APC Smart-UPS 1000 ed anche qui quando si dice che in certi casi, e più il tempo passa e più ce ne sono, Linux è più facile di Winzozz si dice una sacrosanta verità.

1. installare il pacchetto apcupsd (standard in linux)
2. attacchiamo l'USB e lanciamo il comando apcaccess status
3. otteniamo una serie di indicazioni che riporto interamente sotto evidenziando in grassetto la parte interessante.

APC  : 001,038,0928

DATE  : Sun Feb 26 15:48:24 CET 2006

HOSTNAME : pcmorpheus

RELEASE  : 3.10.18

VERSION  : 3.10.18 (21 July 2005) mandrake

UPSNAME  : pcmorpheus

CABLE  : USB Cable

MODEL  : Smart-UPS 1000

UPSMODE  : Stand Alone

STARTTIME: Sun Feb 26 15:39:48 CET 2006

STATUS  : ONLINE

LINEV  : 236.1 Volts

LOADPCT  : 25.3 Percent Load Capacity

BCHARGE  : 100.0 Percent

TIMELEFT : 56.0 Minutes

MBATTCHG : 5 Percent

MINTIMEL : 3 Minutes

MAXTIME  : 0 Seconds

OUTPUTV  : 236.1 Volts

DWAKE  : -01 Seconds

DSHUTD  : 090 Seconds

LOTRANS  : 208.0 Volts

HITRANS  : 253.0 Volts

ITEMP  : 35.5 C Internal

ALARMDEL : Always

BATTV  : 27.3 Volts

LINEFREQ : 50.0 Hz

NUMXFERS : 0

TONBATT  : 0 seconds

CUMONBATT: 0 seconds

XOFFBATT : N/A

SELFTEST : NO

STATFLAG : 0x02000008 Status Flag

SERIALNO : AS0544125052

BATTDATE : 2005-10-31

NOMBATTV : 24.0

FIRMWARE : 52.12.I USB FW:4.2

APCMODEL : Smart-UPS 1000

END APC  : Sun Feb 26 15:48:25 CET 2006

Se visualizzate quanto sopra è bene ... io non ho avuto problemi fino a qui se voi li avete contattatemi.

1. Scrivete dalla konsole da root "tail -f /var/log/messages
2. Staccatte la corrente dall'UPS e vedrete apparire tra le altre informazioni

      apcupsd[7507]: Power failure
      apcupsd[7507]: Running on UPS batteries.

e poi quest'altra apcupsd[10111]: Cannot exec /etc/apcupsd/apccontrol onbattery: No such file or directory

1. Riattaccate la spina all'ups e vedrete apcupsd[7507]: Mains returned. No longer on UPS batteries.
2. Ora c'è la configurazione dell'apccontrol (il file che appunto non trovava). Questo file è uno script bash che esegue comandi prendendo in considerazione i messaggi che apcups monitorizza.
3. Il gioco è fatto. Di seguito metto il mio apccontrol come esempio.

#!/bin/sh
#
#    Safe apccontrol for testing.
#
#  This apccontrol can be used for testing without fear
#  that it will bring your system down
#     examples/safe.apccontrol.  Generated from safe.apccontrol.in by configure.
#
prefix=/usr
exec_prefix=/usr
APCUPSD=/sbin/apcupsd
SHUTDOWN=/sbin/shutdown
SCRIPTDIR=/etc/apcupsd

#
case "$1" in
        killpower)
                wall <<EOF
apccontrol: ${APCUPSD} --killpower would have been.

EOF
        ;;
        commfailure)
                wall <<EOF
apccontrol: Warning serial port communications with UPS lost.

EOF
        ;;
        commok)
                wall <<EOF
apccontrol: Serial communciations with UPS restored.

EOF
        ;;
        powerout)
                wall <<EOF
apccontrol: Warning power loss detected.

EOF
        ;;
        onbattery)
		/sbin/shutdown -h +10 "Power Failure; System Shutting Down in 10 minutes"
                wall <<EOF
apccontrol: Power failure. Running on UPS batteries.

EOF
        ;;
        offbattery)
		/sbin/shutdown -c
		wall <<EOF
apccontrol: Off battery. Mains returned.

EOF
        ;;
        failing)
		/sbin/shutdown -h now
                wall <<EOF
apccontrol: UPS battery power exhaused. Doing shutdown.

EOF
        ;;
        timeout)
		/sbin/shutdown -h now
                wall <<EOF
apccontrol: UPS battery runtime limit exceeded. Doing shutdown.

EOF
        ;;
        loadlimit)
		/sbin/shutdown -h now
                wall <<EOF
apccontrol: UPS battery discharge limit reached. Doing shutdown.

EOF
        ;;
        runlimit)
		/sbin/shutdown -h now
                wall <<EOF
apccontrol: UPS battery runtime percent reached. Doing shutdown.

EOF
        ;;
        doreboot)
                wall <EOF
apccontrol: ${SHUTDOWN} for reboot would have been called.

EOF
        ;;
        doshutdown)
                wall <<EOF
apccontrol: ${SHUTDOWN} for halt would have been called.

EOF
        ;;
        mainsback)
		/sbin/shutdown -c
                wall <<EOF
apccontrol: Power has returned...

EOF
        ;;
        annoyme)
                wall <<EOF
apccontrol: Power problems please logoff.

EOF
        ;;
        emergency)
                wall <<EOF
apccontrol: ${SHUTDOWN} for emergency halt would have been called.

EOF
        ;;
        changeme)
                wall <<EOF
apccontrol: Emergency! UPS batteries have failed.

Change them NOW !
EOF
        ;;
        remotedown)
                wall <<EOF
apccontrol: ${SHUTDOWN} for remote halt would have been called.

EOF
        ;;
        restartme)
                wall <<EOF
apccontrol: restarting apcupsd would have been called.

EOF
        ;;
        startselftest)
                wall <<EOF
apccontrol: start self test would have been called.

EOF
        ;;
        endselftest)
                wall <<EOF
apccontrol: end self test would have been called.

EOF
        ;;
        mastertimeout)
                wall <<EOF
apccontrol: Warning connection from master lost.

EOF
        ;;
        masterconnect)
                wall <<EOF
apccontrol: Connection from master established.

EOF
        ;;
        *)      echo "Usage: ${0##*/} command"
                echo "       warning: this script is intended to be launched by"
                echo "       apcupsd and should never be launched by users."
                exit 1
        ;;
esac