APCUPSD

Automatic server recovery with APCUPSD

• Setup BIOS to recover "LAST" power state

• Make OS to halt on power loss

/etc/apcupsd/doshutdown

#!/bin/sh

/sbin/shutdown -h -H now "apcupsd UPS ${1} initiated shutdown"

exit 99

• If UPS supports it, power-off UPS, so if power returns before battery is completely exhausted, UPS and the server will get restarted.

/sbin/halt.local

#!/bin/sh

# See if this is a powerfail situation.
if [ -f /etc/apcupsd/powerfail ]; then
echo
echo "APCUPSD will now power off the UPS"
echo
/etc/apcupsd/apccontrol killpower
fi