diff options
Diffstat (limited to 'debian/checkarray')
| -rw-r--r-- | debian/checkarray | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/debian/checkarray b/debian/checkarray new file mode 100644 index 00000000..f2c60c6e --- /dev/null +++ b/debian/checkarray @@ -0,0 +1,120 @@ +#!/bin/sh -eu +# +# checkarray -- initiates a check run of a device's parity information. +# +# Copyright © 2006 martin f. krafft <madduck@debian.org> +# distributed under the terms of the Artistic Licence. +# +REVISION=2006.07.07.1121 + +PROGNAME=${0##*/} + +about() +{ + echo "$PROGNAME -- RAID parity checker tool (revision $REVISION)" + echo "Copyright © 2006 martin f. krafft <madduck@debian.org>" + echo "Released under the terms of the Artistic Licence." +} + +usage() +{ + about + echo + echo "Usage: $PROGNAME [options] [devices]" + echo + echo "Valid options are:" + cat <<-_eof | column -s\& -t + -a|--all & check all assembled arrays (check /proc/mdstat). + -c|--cron & honour setting AUTOCHECK in /etc/default/mdadm. + -q|--quiet & suppress informational messages. + -Q|--real-quiet & suppress all output messages, including warnings and errors. + -h|--help & show this output. + -V|--version & show version information. + _eof + echo + echo "Examples:" + echo " $PROGNAME --all" + echo " $PROGNAME /dev/md[123]" + echo + echo "Devices can be specified in almost any format. The following are" + echo "all equivalent:" + echo " /dev/md0, md0, /dev/md/0, /sys/block/md0" + echo + echo "The --all option overrides all devices passed to the script." + echo + echo "You can control the status of a check with /proc/mdstat ." +} + +SHORTOPTS=achVqQ +LONGOPTS=all,cron,help,version,quiet,real-quiet + +eval set -- $(getopt -o $SHORTOPTS -l $LONGOPTS -n $PROGNAME -- "$@") + +devices='' +cron=0 +all=0 +quiet=0 + +for opt in $@; do + case "$opt" in + -a|--all) all=1;; + -c|--cron) cron=1;; + -h|--help) usage; exit 0;; + -q|--quiet) quiet=1;; + -Q|--real-quiet) quiet=2;; + -V|--version) about; exit 0;; + /dev/md/*|md/*) devices="${devices:+$devices }md${opt#*md/}";; + /dev/md*|md*) devices="${devices:+$devices }${opt#/dev/}";; + /sys/block/md*) devices="${devices:+$devices }${opt#/sys/block/}";; + --) :;; + *) echo "$PROGNAME: E: invalid option: $opt" >&2; usage >&2; exit0;; + esac +done + +is_true() +{ + case "${1:-}" in + [Yy]es|[Yy]|1|[Tt]rue|[Tt]) return 0;; + *) return 1; + esac +} + +DEBIANCONFIG=/etc/default/mdadm +[ -f $DEBIANCONFIG ] && . $DEBIANCONFIG +if [ $cron = 1 ] && ! is_true ${AUTOCHECK:-false}; then + [ $quiet -lt 1 ] && echo "$PROGNAME: I: disabled in $DEBIANCONFIG ." >&2 + exit 0 +fi + +if [ ! -f /proc/mdstat ]; then + [ $quiet -lt 2 ] && echo "$PROGNAME: E: RAID subsystem not loaded, or /proc unavailable." >&2 + exit 2 +fi + +if [ -z "$(ls /sys/block/md*/md/sync_action 2>/dev/null)" ]; then + [ $quiet -lt 2 ] && echo "$PROGNAME: E: no kernel support for parity checks." >&2 + exit 3 +fi + +[ $all = 1 ] && devices="$(ls -d1 /sys/block/md* | cut -d/ -f4)" + +for dev in $devices; do + SYNC_ACTION_CTL=/sys/block/$dev/md/sync_action + if [ ! -w $SYNC_ACTION_CTL ]; then + [ $quiet -lt 2 ] && echo "$PROGNAME: E: $SYNC_ACTION_CTL not writeable." >&2 + exit 4 + fi + + if [ "$(cat $SYNC_ACTION_CTL)" != idle ]; then + [ $quiet -lt 2 ] && echo "$PROGNAME: W: device $dev not idle, skipping..." >&2 + continue + fi + + # run check for the device. The kernel will make sure that these requests + # are properly queued so as to not kill one of the devices. + echo check > $SYNC_ACTION_CTL + [ $quiet -lt 1 ] && echo "$PROGNAME: I: check queued for device $dev." >&2 + +done + +exit 0 |