blob: 90d7272f9cd52c1969f73de3ac25335c12bc262f (
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
|
sha1_sum() {
sha1sum "$1" | cut -c 1-40
}
get_rootdev() {
local dev=$(stat -c %D /)
local maj=$(expr $dev : '\(..*\)..')
local min=${dev#$maj}
local bd=/dev/$(basename $(readlink /sys/dev/block/$((0x$maj)):$((0x$min))))
[ -b $bd ] || exit 1
echo $bd
}
get_sysdir() {
local mddev=$1
[ -L $mddev ] && mddev=$(readlink -f $mddev)
echo "/sys/class/block/$(basename $mddev)/md"
}
get_raiddisks() {
sysdir=$(get_sysdir "$1")
for i in $(seq 0 $(($(cat $sysdir/raid_disks)-1))); do
if [ -d $sysdir/rd$i ]; then
readlink -f /dev/block/$(cat $sysdir/rd$i/block/dev)
else
echo MISSING
fi
done
}
get_present() {
get_raiddisks $1 | grep -vc MISSING
}
ddf_check() {
udevadm settle
case $1 in
container )
grep -s "blocks super external:ddf" /proc/mdstat > /dev/null || {
echo >&2 "**Fatal** Correctly formed container not found"; cat /proc/mdstat; exit 1; }
;;
member )
t_member=$2
t_num_disks=$3
t_level=$4
t_rd_size=$5
t_size=$6
t_offset=$7
t_chunk=$8
t_layout=$9
if [ $t_chunk -ne 0 ]; then
t_rd_size=$((t_rd_size & ~(t_chunk - 1)))
fi
case $t_level in
0) t_size=$((t_num_disks*$t_rd_size));;
1) t_size=$t_rd_size;;
4|5) t_size=$(((t_num_disks-1)*$t_rd_size));;
6) t_size=$(((t_num_disks-2)*$t_rd_size));;
10) t_size=$((t_num_disks*$t_rd_size/t_layout));;
esac
err=0
eval `stat -L -c "let major=0x%t; let minor=0x%T;" $t_member`
sysfs=/sys/dev/block/${major}:${minor}
if [ ! -f ${sysfs}/md/array_state ]; then
echo "**Fatal**: Array member $t_member not found" >&2; cat /proc/mdstat >&2; exit 1
fi
_chunk=`cat ${sysfs}/md/chunk_size`
if [ $t_chunk -ne $((_chunk/1024)) ]; then
echo "**Error**: Chunk size mismatch - expected $t_chunk, actual $_chunk" >&2
err=$((err + 1))
fi
for i in `seq 0 $((t_num_disks - 1))`; do
_offset=`cat ${sysfs}/md/rd${i}/offset`
if [ $t_offset -ne $((_offset / 2)) ]; then
echo "**Error**: Offset mismatch - expected $t_offset, actual $((_offset/2))" >&2
err=$((err + 1))
fi
_rd_size=`cat ${sysfs}/md/rd${i}/size`
if [ $t_rd_size -ne $_rd_size ]; then
echo "**Error**: Component size mismatch - expected $t_rd_size, actual $_rd_size" >&2
err=$((err + 1))
fi
done
_size=`cat ${sysfs}/md/array_size`
[ o$_size = odefault ] && _size=$(($(cat ${sysfs}/size)/2))
if [ $t_size -ne $_size ]; then
echo "**Error**: Array size mismatch - expected $t_size, actual $_size" >&2
err=$((err + 1))
fi
if [ $err -gt 0 ]; then
echo "$t_member failed check" >&2
cat /proc/mdstat >&2
mdadm -E /dev/loop8 >&2
exit 1
fi
;;
* )
echo >&2 "**Error** unknown check $1"; exit 1;
esac
}
container=/dev/md/ddf0
member0=/dev/md/vol0
member1=/dev/md/vol1
member2=/dev/md/vol2
member3=/dev/md/vol3
member4=/dev/md/vol4
# We don't want systemd to start system mdmon; start our own
export MDADM_NO_SYSTEMCTL=1
|
