3 # create a small raid1 array, make it larger. Then make it smaller
5 mdadm -CR $md0 -e 0.90 --level raid1 --raid-disks 3 --size $[size/2] $dev1 $dev2 $dev3
8 testdev $md0 1 $[size/2] 1
10 mdadm --grow $md0 --size max
13 testdev $md0 1 $mdsize0 1
15 mdadm --grow $md0 --size $[size/2]
17 testdev $md0 1 $[size/2] 1
21 # same again with version 1.1 superblock
22 mdadm -CR $md0 --level raid1 --metadata=1.1 --raid-disks 3 --size $[size/2] $dev1 $dev2 $dev3
25 testdev $md0 1 $[size/2] 1
27 mdadm --grow $md0 --size max
30 testdev $md0 1 $mdsize1_l 1
32 mdadm --grow $md0 --size $[size/2]
34 testdev $md0 1 $[size/2] 1