Clear the IPMI SEL log before it gets full and synchronize the system time.

ipmi_sel_housekeeping.sh

#!/bin/sh

# Clear the system event log on the BMC when it is more than 80% full.

THRESH=80

SEL_STATE=$(/usr/bin/ipmitool sel info 2> /dev/null)

if [ $? -ne 0 ]; then
  echo Problem fetching SEL info.
  exit 255
fi

SEL_GAUGE=$(echo "$SEL_STATE" | awk '/Percent Used/ { printf "%d\n", $4 }')

if [ $SEL_GAUGE -ge $THRESH ]; then
  /usr/bin/ipmitool sel clear > /dev/null
  logger -t "$(basename $0)[$$]" "IPMI System Event Log at ${SEL_GAUGE}% capacity. Cleared..."
fi

# Set the date of the local SEL clock once per 24h
if [ "$(date +%H)" -eq "0" ]; then
  SEL_TIME=$(date -d "$(ipmitool sel time get)" +%s)
  SYS_TIME=$(date +%s)

  if [ "$SEL_TIME" -ne "$SYS_TIME" ]; then
    if [ "$SEL_TIME" -gt "$SYS_TIME" ]; then
      DIFF=$(($SEL_TIME - $SYS_TIME))
    else
      DIFF=$(($SYS_TIME - $SEL_TIME))
    fi
    /usr/bin/ipmitool sel time set "$(date +"%m/%d/%Y %H:%M:%S")" > /dev/null
    logger -t "$(basename $0)[$$]" "IPMI System Event Log clock differed by ${DIFF}s from system clock.. Corrected..."
  fi
fi