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#
# Test various RAID geometries, creation and deletion of subarrays
#
assert_fail() {
if mdadm "$@"; then
echo mdadm "$@" must fail
return 1
else
return 0
fi
}
assert_kill() {
local dev=$1 n=$2
mdadm -S $dev
mdadm --kill-subarray=$n /dev/md/ddf0
if mdadm -Dbs | grep -q $dev; then
echo >&2 $dev should be deleted
return 1
fi
return 0
}
set -e
mdadm -CR /dev/md/ddf0 -e ddf -n 6 $dev8 $dev9 $dev10 $dev11 $dev12 $dev13
# RAID1 geometries
# Use different sizes to make offset calculation harder
mdadm -CR l1s -l1 -n2 /dev/md/ddf0 -z 8000
mdadm -CR l1m -l1 -n3 $dev8 $dev9 $dev10 -z 10000
assert_fail -CR badl1 -l1 -n4 /dev/md/ddf0
# RAID10 geometries
mdadm -CR l10_0 -l10 -n3 /dev/md/ddf0 -z 1000
mdadm -CR l10_1 -l10 -n5 /dev/md/ddf0 -z 1000
assert_fail mdadm -CR badl10 -l10 -n4 -pn3 /dev/md/ddf0
mdadm -CR l10_2 -l10 -n6 -pn2 /dev/md/ddf0 -z 4000
mdadm -CR l10_3 -l10 -n6 -pn3 /dev/md/ddf0 -z 4000
assert_fail -CR l10_2 -l10 -n6 -pn2 /dev/md/ddf0 -z 5000
assert_kill /dev/md/l10_2 4
# gone now, must be able to create it again
mdadm -CR l10_2 -l10 -n6 -pn2 /dev/md/ddf0 -z 5000
# Now stop and reassemble
mdadm -Ss
mdadm -A /dev/md/ddf0 $dev8 $dev9 $dev10 $dev11 $dev12 $dev13
# Same as above, on inactive container
assert_fail -CR l10_3 -l10 -n6 -pn2 /dev/md/ddf0 -z 5000
# Kill subarray without having started anything (no mdmon)
mdadm --kill-subarray=5 /dev/md/ddf0
mdadm -I /dev/md/ddf0
mdadm -CR l10_3 -l10 -n6 -pn3 /dev/md/ddf0 -z 5000
assert_kill /dev/md/l10_2 4
assert_kill /dev/md/l10_3 5
# RAID5 geometries
mdadm -CR l5la -l5 -n3 --layout=ddf-N-restart /dev/md/ddf0 -z 5000
mdadm -CR l5ra -l5 -n3 --layout=ddf-zero-restart /dev/md/ddf0 -z 5000
mdadm -CR l5ls -l5 -n3 --layout=ddf-N-continue /dev/md/ddf0 -z 5000
assert_fail -CR l5rs -l5 -n3 -prs /dev/md/ddf0 -z 5000
# Stop and reassemble
mdadm -Ss
mdadm -A /dev/md/ddf0 $dev8 $dev9 $dev10 $dev11 $dev12 $dev13
mdadm -I /dev/md/ddf0
assert_kill /dev/md/l5la 4
assert_kill /dev/md/l5ls 6
assert_kill /dev/md/l5ra 5
# RAID6 geometries
assert_fail -CR l6la -l6 -n3 -pla /dev/md/ddf0 -z 5000
assert_fail -CR l6rs -l5 -n4 -prs /dev/md/ddf0 -z 5000
mdadm -CR l6la -l6 -n4 --layout=ddf-N-restart /dev/md/ddf0 -z 5000
mdadm -CR l6ra -l6 -n4 --layout=ddf-zero-restart $dev8 $dev9 $dev10 $dev11 -z 5000
mdadm -CR l6ls -l6 -n4 --layout=ddf-N-continue $dev13 $dev8 $dev9 $dev12 -z 5000
mdadm -Ss
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