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