Improve revert tests
1/ perform revert-grow on more metadata versions 2/ add revert-inplace. Signed-off-by: NeilBrown <neilb@suse.de>
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@ -3,8 +3,13 @@ set -e -x
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# revert a reshape that is increasing the number of devices,
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# revert a reshape that is increasing the number of devices,
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# raid5, raid6, and raid10
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# raid5, raid6, and raid10
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# metadate 0.90 cannot handle RAID10 growth
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# metadata 1.0 doesn't get a default headspace, is don't try it either.
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for metadata in 0.90 1.1 1.2
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do
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# RAID5
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# RAID5
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mdadm -CR --assume-clean $md0 -l5 -n4 -x1 $devlist4
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mdadm -CR --assume-clean $md0 -l5 -n4 -x1 $devlist4 --metadata=$metadata
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check raid5
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check raid5
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testdev $md0 3 $mdsize1 512
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testdev $md0 3 $mdsize1 512
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mdadm -G $md0 -n 5
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mdadm -G $md0 -n 5
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@ -17,7 +22,7 @@ testdev $md0 3 $mdsize1 512
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mdadm -S $md0
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mdadm -S $md0
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# RAID6
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# RAID6
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mdadm -CR --assume-clean $md0 -l6 -n4 -x1 $devlist4
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mdadm -CR --assume-clean $md0 -l6 -n4 -x1 $devlist4 --metadata=$metadata
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check raid6
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check raid6
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testdev $md0 2 $mdsize1 512
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testdev $md0 2 $mdsize1 512
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mdadm -G $md0 -n 5
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mdadm -G $md0 -n 5
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@ -29,8 +34,10 @@ check raid6
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testdev $md0 2 $mdsize1 512
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testdev $md0 2 $mdsize1 512
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mdadm -S $md0
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mdadm -S $md0
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if [ $metadata = 0.90 ]; then continue; fi
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# RAID10
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# RAID10
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mdadm -CR --assume-clean $md0 -l10 -n4 -x1 $devlist4
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mdadm -CR --assume-clean $md0 -l10 -n4 -x1 $devlist4 --metadata=$metadata
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check raid10
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check raid10
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testdev $md0 2 $mdsize1 512
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testdev $md0 2 $mdsize1 512
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mdadm -G $md0 -n 5
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mdadm -G $md0 -n 5
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@ -41,3 +48,5 @@ check wait
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check raid10
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check raid10
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testdev $md0 2 $mdsize1 512
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testdev $md0 2 $mdsize1 512
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mdadm -S $md0
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mdadm -S $md0
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done
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@ -0,0 +1,44 @@
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set -e -x
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# revert a reshape that is not changing the number of data devices,
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# raid5, raid6, and raid10
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# RAID5 -> RAID6
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mdadm -CR --assume-clean $md0 -l5 -n4 -x1 $devlist4
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check raid5
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testdev $md0 3 $mdsize1 512
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mdadm -G $md0 -l 6
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sleep 3
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mdadm -S $md0
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mdadm -A $md0 --update=revert-reshape $devlist4 --backup-file=/tmp/md-backup
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check wait
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check raid6
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check algorithm 18
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testdev $md0 3 $mdsize1 512
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mdadm -S $md0
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# RAID6 -> RAID5
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mdadm -CR --assume-clean $md0 -l6 -n5 $devlist4
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check raid6
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testdev $md0 3 $mdsize1 512
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mdadm -G $md0 -l 5
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sleep 3
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mdadm -S $md0
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mdadm -A $md0 --update=revert-reshape $devlist4 --backup-file=/tmp/md-backup
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check wait
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check raid6
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testdev $md0 3 $mdsize1 512
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mdadm -S $md0
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# RAID10 - decrease chunk size
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mdadm -CR --assume-clean $md0 -l10 -n6 -c 64 $devlist5
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check raid10
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testdev $md0 3 $mdsize1 64
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mdadm -G $md0 -c 32
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sleep 3
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mdadm -S $md0
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strace -o /tmp/str ./mdadm -A $md0 --update=revert-reshape $devlist5
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check wait
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check raid10
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testdev $md0 3 $mdsize1 64
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mdadm -S $md0
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