A script for Turris Omnia that checks the status of a JMicron JMS56x RAID controller and sends a notification if something's wrong.

check_raid_status.sh

#!/bin/bash

# Based on the script from https://forum.odroid.com/viewtopic.php?t=29298
# Changes to that script are released under BSD license (c) Martin Pecka, 2019.

# raidmgr_static can be downloaded here: https://wiki.odroid.com/_media/accessory/add-on_boards/xu4_cloudshell2/raidmgr_static_cloudshell2.zip

RAID_MANAGER="/usr/bin/raidmgr_static"

STATUS="$(echo -e "SR C0\nEX\n" | $RAID_MANAGER)"

logger -t raid -p notice "${STATUS}"

RAID_STATUS="$(echo "${STATUS}" | grep RaidStatus | awk '{ print $NF }')"
echo "The current JMicron RAID controller status is: ${RAID_STATUS}"

##Possible RAID STATES
##Broken
##Degrade
##Rebuilding
##Normal

case "${RAID_STATUS}" in
    Degrade)
      logger -t raid -p err "RAID status is Degrade"
      create_notification -s error "Your RAID is in a DEGRADED STATE! It is recommended that an investigation and repair or replacement of the failing drive be done as soon as possible. Use ${RAID_MANAGER} to determine which drive has failed."
      ;;
  Broken)
      logger -t raid -p err "RAID status is Broken"
      create_notification -s error  "Your RAID is in a BROKEN STATE! It is recommended that an investigation and repair be done as soon as possible."
      ;;
  Rebuilding)
      percentage="$(echo -e "GR C0 R0\nEX\n" | "${RAID_MANAGER}" | grep -o "rebuild.*")"
      logger -t raid -p warn "RAID status is Rebuilding (${percentage})"
      create_notification -s news "Your RAID is currently rebuilding (${percentage})."
      ;;
  Normal)
      logger -t raid -p info "RAID status is Normal"
      ;;
  *)
      logger -t raid -p err "RAID status is unknown"
      create_notification -s error "Hmm, Not sure what's going on with the RAID.  Your RAID status is unknown. This isn't necessarily a bad thing, it just means we couldn't grab the status."
      ;;
esac

DISK_TEMPS="$(echo -e "SM C0 D0\nSM C0 D1\nEX\n" | "${RAID_MANAGER}" | grep "^ 190" | awk '{print $2}' | tr "\n" ", " | head -c-1)"
logger -t raid -p info "Disk temperatures are ${DISK_TEMPS}"