imsm: test overlapping creates
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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2952742d32
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# create raid arrays with varying degress of overlap
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mdadm -CR $container -e imsm -n 6 $dev0 $dev1 $dev2 $dev3 $dev4 $dev5
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imsm_check container 6
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size=1910
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level=1
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num_disks=2
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mdadm -CR $member0 $dev0 $dev1 -n $num_disks -l $level -z $size
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mdadm -CR $member1 $dev1 $dev2 -n $num_disks -l $level -z $size
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mdadm -CR $member2 $dev2 $dev3 -n $num_disks -l $level -z $size
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mdadm -CR $member3 $dev3 $dev4 -n $num_disks -l $level -z $size
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mdadm -CR $member4 $dev4 $dev5 -n $num_disks -l $level -z $size
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offset=0
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imsm_check member $member0 $num_disks $level $size $offset
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offset=$((offset+size+2048))
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imsm_check member $member1 $num_disks $level $size $offset
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offset=$((offset+size+2048))
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imsm_check member $member2 $num_disks $level $size $offset
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offset=$((offset+size+2048))
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imsm_check member $member3 $num_disks $level $size $offset
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# at this point there should be more freespace at the start of the disk
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# than the end
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offset=0
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imsm_check member $member4 $num_disks $level $size $offset
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env-imsm
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imsm_check() {
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case $1 in
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container )
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grep -s "$(((418 * $2)/2)) blocks super external:imsm" /proc/mdstat > /dev/null || {
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echo >&2 "ERROR correctly formed container not found"; cat /proc/mdstat; exit 1;}
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;;
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member )
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member=$2
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num_disks=$3
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level=$4
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size=$5
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offset=$6
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err=0
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eval `stat -L -c "let major=0x%t; let minor=0x%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 "member array $member not found" >&2
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cat /proc/mdstat >&2
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exit 1
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fi
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for i in `seq 0 $((num_disks-1))`
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do
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_offset=`cat ${sysfs}/md/rd${i}/offset`
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if [ $offset -ne $((_offset/2)) ]; then
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echo "offset mismatch expected $offset got $_offset" >&2
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err=$((err+1))
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fi
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_size=`cat ${sysfs}/md/rd${i}/size`
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if [ $size -ne $_size ]; then
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echo "offset mismatch expected $size got $_size" >&2
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err=$((err+1))
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fi
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done
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if [ $err -gt 0 ]; then
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echo "$member failed check" >&2
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cat /proc/mdstat >&2
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mdadm -E /dev/loop0 >&2
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exit 1
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fi
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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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setup_env() {
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export IMSM_DEVNAME_AS_SERIAL=1
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export IMSM_NO_PLATFORM=1
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container=/dev/md/container
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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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}
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reset_env() {
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unset IMSM_DEVNAME_AS_SERIAL
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unset IMSM_NO_PLATFORM
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unset imsm_check
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unset container
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unset member0
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unset member1
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unset member2
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unset member3
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unset member4
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}
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