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# Make a raid1, add a device, then remove it again.
mdadm -CR $md0 -l1 -n2 -x1 $dev0 $dev1 $dev2
check resync
check wait
check state UU
mdadm --grow $md0 -n 3
check recovery
check wait
check state UUU
mdadm $md0 --fail $dev0
check state _UU
mdadm --grow $md0 -n 2
check state UU
mdadm -S $md0
# same again for version-1
mdadm -CR $md0 -l1 -n2 -e1.2 -x1 $dev0 $dev1 $dev2
check resync
check wait
check state UU
mdadm --grow $md0 -n 3
check recovery
check wait
check state UUU
mdadm $md0 --fail $dev0
check state _UU
mdadm --grow $md0 -n 2
check state UU
mdadm -S $md0
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