124 lines
3.0 KiB
Bash
124 lines
3.0 KiB
Bash
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#!/bin/bash
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#
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#/
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#/ Usage:
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#/ check-md.sh --warning=<events> --critical=<events> <md-device>
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#/
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#/ Checks the raid-device status
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#/
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#/ Options:
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#/ -w, --warning=<events> The events of when to trigger a warning (comma-separated)
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#/ -c, --critical=<events> The events of when to trigger a critical warning (comma-separated)
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#/
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#/ Possible events
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#/ - clean
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#/ - write-pending
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#/ - active
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#/ - degraded
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#/
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#/ Exit Codes:
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#/ 0 Everything OK
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#/ 1 Warning events happened
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#/ 2 Critical events happened
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#/ 3 Unknown status
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#/
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Usage() {
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grep '^#/' "${script_dir}/${script_name}" | sed 's/^#\/\w*//'
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}
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GetOptions() {
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# https://stackoverflow.com/a/29754866
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OPTIONS=w:c:
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LONGOPTS=warning:,critical:
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# -use ! and PIPESTATUS to get exit code with errexit set
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# -temporarily store output to be able to check for errors
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# -activate quoting/enhanced mode (e.g. by writing out “--options”)
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# -pass arguments only via -- "$@" to separate them correctly
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! PARSED=$(getopt --options=$OPTIONS --longoptions=$LONGOPTS --name "$0" -- "$@")
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if [[ ${PIPESTATUS[0]} -ne 0 ]]; then
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# e.g. return value is 1
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# then getopt has complained about wrong arguments to stdout
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Usage
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exit 2
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fi
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# read getopt's output this way to handle the quoting right:
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eval set -- "$PARSED"
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OLDIFS=$IFS
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# now enjoy the options in order and nicely split until we see --
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while true; do
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case "$1" in
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-w|--warning)
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IFS=","
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warn=$(echo $2)
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IFS=$OLDIFS
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shift 2
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;;
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-c|--critical)
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IFS=","
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crit=$(echo $2)
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IFS=$OLDIFS
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shift 2
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;;
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--)
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shift
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break
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;;
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*)
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echo "MD UNKNOWN - ${1} is not a valid parameter"
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exit 3
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;;
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esac
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done
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if [ -z ${1+x} ]; then
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echo "MD UNKNOWN - MD-device not given"
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exit 3
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elif [ ! -d /sys/block/${1} ]; then
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echo "MD UNKNOWN - MD-device is not valid"
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exit 3
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else
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device=${1}
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fi
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}
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LC_NUMERIC="C"
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warn='active'
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crit='degraded'
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device=''
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script_name=$(basename "${0}")
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script_dir=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
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GetOptions "$@"
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events=()
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degradeddevs=$(cat /sys/block/${device}/md/degraded)
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msg=()
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if [[ $degradeddevs > 0 ]]; then
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actevents+=('degraded')
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msg+=("$degradeddevs devices degraded")
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fi
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state=$(cat /sys/block/${device}/md/array_state)
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msg+=("Array ${device} is ${state}")
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actevents+=($state)
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rval=0
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rmsg="OK"
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for warnevent in $warn; do
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if [[ " ${actevents[*]} " =~ " ${warnevent} " ]]; then
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rval=1
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rmsg="WARNING"
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fi
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done
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for critevent in $crit; do
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if [[ " ${actevents[*]} " =~ " ${critevent} " ]]; then
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rval=2
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rmsg="CRITICAL"
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fi
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done
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msgprint=$( (IFS=$'\n'; echo "${msg[*]}") )
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echo "MD ${rmsg} - ${msgprint}"
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