[thirdparty/mdadm.git] / tests / 02r6grow



# create a small raid6 array, make it larger.  Then make it smaller

mdadm -CR $md0 -e 0.90 --level raid6 --chunk=32 --raid-disks 4 --size $[size/2] $dev1 $dev2 $dev3 $dev4 
check wait
check state UUUU
testdev $md0 2 $[size/2] 32

mdadm --grow $md0 --size max
check resync
check wait
testdev $md0 2 $mdsize0 32

mdadm --grow $md0 --size $[size/2]
check nosync
testdev $md0 2 $[size/2] 32

mdadm -S $md0

# same again with version 1.1 superblock
mdadm -CR $md0 --level raid6 --metadata=1.1 --chunk=128 --raid-disks 4 --size $[size/2] $dev1 $dev2 $dev3 $dev4 
check wait
check state UUUU
testdev $md0 2 $[size/2] 128

mdadm --grow $md0 --size max
check resync
check wait
testdev $md0 2 $[size-4] 128

mdadm --grow $md0 --size $[size/2]
check nosync
testdev $md0 2 $[size/2] 128

mdadm -S $md0
Commit	Line	Data
	1
	2
	3	# create a small raid6 array, make it larger. Then make it smaller
	4
	5	mdadm -CR $md0 -e 0.90 --level raid6 --chunk=32 --raid-disks 4 --size $[size/2] $dev1 $dev2 $dev3 $dev4
	6	check wait
	7	check state UUUU
	8	testdev $md0 2 $[size/2] 32
	9
	10	mdadm --grow $md0 --size max
	11	check resync
	12	check wait
	13	testdev $md0 2 $mdsize0 32
	14
	15	mdadm --grow $md0 --size $[size/2]
	16	check nosync
	17	testdev $md0 2 $[size/2] 32
	18
	19	mdadm -S $md0
	20
	21	# same again with version 1.1 superblock
	22	mdadm -CR $md0 --level raid6 --metadata=1.1 --chunk=128 --raid-disks 4 --size $[size/2] $dev1 $dev2 $dev3 $dev4
	23	check wait
	24	check state UUUU
	25	testdev $md0 2 $[size/2] 128
	26
	27	mdadm --grow $md0 --size max
	28	check resync
	29	check wait
	30	testdev $md0 2 $[size-4] 128
	31
	32	mdadm --grow $md0 --size $[size/2]
	33	check nosync
	34	testdev $md0 2 $[size/2] 128
	35
	36	mdadm -S $md0