#!/bin/sh
# mpt-status monitoring wrapper
# based on http://prefetch.net/reference/mpt-status.spec
# NB: tested against a single SAS1068 HBA only
export PATH=/bin:/usr/bin:/sbin:/usr/sbin

MPT_ID=
MPT_ARGS="-s"
MPT_LOGLEVEL="kern.err"

[ -s /etc/sysconfig/mpt-status ] && source /etc/sysconfig/mpt-status

[ -n "$MAILTO" ] || exit 0
[ -n "$MPT_ID" ] && MPT_ARGS="$MPT_ARGS -i $MPT_ID"

# The return code from mpt-status is a bit mask, and can be interepreted
# according to the following table (current as of 1.2.0):
#   Bit   Value   Meaning
#   -----------------------------------------------------------------
#     0       1   Abnormal condition / unknown error
#     1       2   A logical volume has failed
#     2       4   A logical volume is degraded
#     3       8   A logical volume is resyncing
#     4      16   At least one physical disk failed
#     5      32   At least one physical disk is in warning condition

OUT="`mpt-status $MPT_ARGS`" || {
    echo -e "check mpt-status $MPT_ARGS on $HOSTNAME\n\n$OUT" | mail -s "[$HOSTNAME] mpt-status: disk failure" "$MAILTO"
    logger -p "$MPT_LOGLEVEL" "STORAGE ERROR: A failure was detected with the LSI Logic RAID controller or one of the disk drives"
    logger -p "$MPT_LOGLEVEL" "STORAGE ERROR: Run mpt-status to view the status of the storage subsystem"
}