Adding upstream version 4.2.
Signed-off-by: Daniel Baumann <daniel@debian.org>
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166
misc/mdcheck
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166
misc/mdcheck
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#!/bin/bash
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# Copyright (C) 2014-2017 Neil Brown <neilb@suse.de>
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#
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# Author: Neil Brown
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# Email: <neilb@suse.com>
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# This script should be run periodically to automatically
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# perform a 'check' on any md arrays.
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#
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# It supports a 'time budget' such that any incomplete 'check'
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# will be checkpointed when that time has expired.
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# A subsequent invocation can allow the 'check' to continue.
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#
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# Options are:
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# --continue Don't start new checks, only continue old ones.
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# --duration This is passed to "date --date=$duration" to find out
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# when to finish
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#
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# To support '--continue', arrays are identified by UUID and the 'sync_completed'
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# value is stored in /var/lib/mdcheck/$UUID
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# convert a /dev/md name into /sys/.../md equivalent
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sysname() {
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set `ls -lLd $1`
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maj=${5%,}
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min=$6
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readlink -f /sys/dev/block/$maj:$min
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}
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args=$(getopt -o hcd: -l help,continue,duration: -n mdcheck -- "$@")
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rv=$?
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if [ $rv -ne 0 ]; then exit $rv; fi
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eval set -- $args
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cont=
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endtime=
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while [ " $1" != " --" ]
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do
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case $1 in
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--help )
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echo >&2 'Usage: mdcheck [--continue] [--duration time-offset]'
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echo >&2 ' time-offset must be understood by "date --date"'
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exit 0
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;;
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--continue ) cont=yes ;;
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--duration ) shift; dur=$1
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endtime=$(date --date "$dur" "+%s")
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;;
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esac
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shift
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done
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shift
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# We need a temp file occasionally...
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tmp=/var/lib/mdcheck/.md-check-$$
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trap 'rm -f "$tmp"' 0 2 3 15
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# firstly, clean out really old state files
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mkdir -p /var/lib/mdcheck
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find /var/lib/mdcheck -name "MD_UUID*" -type f -mtime +180 -exec rm {} \;
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# Now look at each md device.
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cnt=0
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for dev in /dev/md?*
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do
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[ -e "$dev" ] || continue
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sys=`sysname $dev`
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if [ ! -f "$sys/md/sync_action" ]
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then # cannot check this array
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continue
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fi
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if [ "`cat $sys/md/sync_action`" != 'idle' ]
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then # This array is busy
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continue
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fi
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mdadm --detail --export "$dev" | grep '^MD_UUID=' > $tmp || continue
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source $tmp
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fl="/var/lib/mdcheck/MD_UUID_$MD_UUID"
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if [ -z "$cont" ]
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then
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start=0
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logger -p daemon.info mdcheck start checking $dev
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elif [ -z "$MD_UUID" -o ! -f "$fl" ]
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then
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# Nothing to continue here
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continue
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else
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start=`cat "$fl"`
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logger -p daemon.info mdcheck continue checking $dev from $start
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fi
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cnt=$[cnt+1]
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eval MD_${cnt}_fl=\$fl
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eval MD_${cnt}_sys=\$sys
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eval MD_${cnt}_dev=\$dev
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echo $start > $fl
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echo $start > $sys/md/sync_min
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echo check > $sys/md/sync_action
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done
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if [ -z "$endtime" ]
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then
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exit 0
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fi
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while [ `date +%s` -lt $endtime ]
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do
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any=
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for i in `eval echo {1..$cnt}`
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do
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eval fl=\$MD_${i}_fl
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eval sys=\$MD_${i}_sys
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eval dev=\$MD_${i}_dev
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if [ -z "$fl" ]; then continue; fi
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if [ "`cat $sys/md/sync_action`" != 'check' ]
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then
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logger -p daemon.info mdcheck finished checking $dev
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eval MD_${i}_fl=
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rm -f $fl
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continue;
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fi
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read a rest < $sys/md/sync_completed
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echo $a > $fl
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any=yes
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done
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if [ -z "$any" ]; then exit 0; fi
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sleep 120
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done
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# We've waited, and there are still checks running.
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# Time to stop them.
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for i in `eval echo {1..$cnt}`
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do
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eval fl=\$MD_${i}_fl
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eval sys=\$MD_${i}_sys
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eval dev=\$MD_${i}_dev
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if [ -z "$fl" ]; then continue; fi
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if [ "`cat $sys/md/sync_action`" != 'check' ]
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then
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eval MD_${i}_fl=
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rm -f $fl
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continue;
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fi
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echo idle > $sys/md/sync_action
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cat $sys/md/sync_min > $fl
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logger -p daemon.info pause checking $dev at `cat $fl`
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done
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27
misc/syslog-events
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27
misc/syslog-events
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@ -0,0 +1,27 @@
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#!/bin/sh
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#
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# sample event handling script for mdadm
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# e.g. mdadm --follow --program=/sbin/syslog-events --scan
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#
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# License: GPL ver.2
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# Copyright (C) 2004 SEKINE Tatsuo <tsekine@sdri.co.jp>
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event="$1"
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dev="$2"
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disc="$3"
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facility="kern"
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tag="mdmonitor"
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case x"${event}" in
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xFail*) priority="error" ;;
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xTest*) priority="debug" ;;
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x*) priority="info" ;;
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esac
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msg="${event} event on ${dev}"
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if [ x"${disc}" != x ]; then
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msg="${msg}, related to disc ${disc}"
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fi
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exec logger -t "${tag}" -p "${facility}.${priority}" -- "${msg}"
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