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set -e
# create a small raid6 array, make it larger. Then make it smaller
$mdadm -CR $md0 --level raid6 --chunk=32 --raid-disks 4 --size $[size/2] $dev1 $dev2 $dev3 $dev4
$check wait
$check state UUUU
sh tests/testdev $md0 2 $[size/2] 32
$mdadm --grow $md0 --size max
$check resync
$check wait
sh tests/testdev $md0 2 $mdsize0 64
$mdadm --grow $md0 --size $[size/2]
$check nosync
sh tests/testdev $md0 2 $[size/2] 64
$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
sh tests/testdev $md0 2 $[size/2] 128
$mdadm --grow $md0 --size max
$check resync
$check wait
sh tests/testdev $md0 2 $[size-1] 128
$mdadm --grow $md0 --size $[size/2]
$check nosync
sh tests/testdev $md0 2 $[size/2] 128
$mdadm -S $md0
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