blob: f2c60c6e5d76c6d6a88b9903effbf0546758a953 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
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
|
