RAID1 arrays don't have a chunk size, but if you ever convert one to RAID5 you will need at least a small one >= 4K. So round of size to a multiple of 64K. This only affect Create, not "--grow --size=max". The latter is too hard and with smaller returns. Signed-off-by: NeilBrown <neilb@suse.de>
37 lines
763 B
Plaintext
37 lines
763 B
Plaintext
|
|
#
|
|
# create a raid1, remove a drive, and readd it.
|
|
# resync should be instant.
|
|
# Then do some IO first. Resync should still be very fast
|
|
#
|
|
|
|
mdadm -CR $md0 -l1 -n2 -binternal --bitmap-chunk=4 -d1 $dev1 $dev2
|
|
check resync
|
|
check wait
|
|
testdev $md0 1 $mdsize1a 64
|
|
sleep 4
|
|
|
|
mdadm $md0 -f $dev2
|
|
sleep 1
|
|
mdadm $md0 -r $dev2
|
|
mdadm $md0 -a $dev2
|
|
#cat /proc/mdstat
|
|
check nosync
|
|
|
|
mdadm $md0 -f $dev2
|
|
sleep 1
|
|
mdadm $md0 -r $dev2
|
|
testdev $md0 1 $mdsize1a 64
|
|
mdadm $md0 -a $dev2
|
|
check wait
|
|
cmp --ignore-initial=$[16*512] --bytes=$[$mdsize0*1024] $dev1 $dev2
|
|
|
|
mdadm $md0 -f $dev2; sleep 1
|
|
mdadm $md0 -r $dev2
|
|
if dd if=/dev/zero of=$md0 ; then : ; fi
|
|
mdadm $md0 -a $dev2
|
|
check recovery
|
|
check wait
|
|
cmp --ignore-initial=$[16*512] --bytes=$[$mdsize0*1024] $dev1 $dev2
|
|
mdadm -S $md0
|