Now that I have this mostly working, I should make sure
it doesn't break...
Signed-off-by: NeilBrown <neilb@suse.de>
grep -s "active $1 " /proc/mdstat > /dev/null || {
echo >&2 "ERROR active $1 not found" ; cat /proc/mdstat ; exit 1;}
;;
+ algorithm )
+ grep -s " algorithm $2 " /proc/mdstat > /dev/null || {
+ echo >&2 "ERROR algorithm $2 not found"; cat /proc/mdstat; exit 1;}
+ ;;
resync | recovery | reshape)
sleep 0.5
grep -s $1 /proc/mdstat > /dev/null || {
--- /dev/null
+set -x -e
+
+# reshape a RAID6 to RAID5 and then RAID0.
+# then reshape back up to RAID5 and RAID5
+
+mdadm -CR $md0 -l6 -n5 $dev0 $dev1 $dev2 $dev3 $dev4
+check wait
+check raid6
+mdadm -G $md0 -l5
+check wait
+check raid5
+mdadm -G $md0 -l0
+check wait
+check raid0
+mdadm -G $md0 -l5 --add $dev3 $dev4
+check wait
+check raid5
+check algorithm 2
+mdadm -G $md0 -l 6
+check wait
+check raid6
+check algorithm 2