696e95a1df
In repair mode, the data block indices to be repaired were calculated using geo_map() which returns the disk slot for a data block index and not the reverse. Now we simply store the reverse of that calculation when we do it anyway. Signed-off-by: NeilBrown <neilb@suse.de>
30 lines
1.3 KiB
Plaintext
30 lines
1.3 KiB
Plaintext
number_of_disks=7
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chunksize_in_kib=512
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array_data_size_in_kib=$[chunksize_in_kib*(number_of_disks-2)*number_of_disks]
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array_data_size_in_b=$[array_data_size_in_kib*1024]
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devs="$dev0 $dev1 $dev2 $dev3 $dev4 $dev5 $dev6"
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dd if=/dev/urandom of=/tmp/RandFile bs=1024 count=$array_data_size_in_kib
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mdadm -CR $md0 -l6 -n$number_of_disks -c $chunksize_in_kib $devs
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dd if=/tmp/RandFile of=$md0 bs=1024 count=$array_data_size_in_kib
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blockdev --flushbufs $md0; sync
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check wait
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blockdev --flushbufs $devs; sync
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echo 3 > /proc/sys/vm/drop_caches
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$dir/raid6check $md0 repair 1 2 3 > /dev/null # D D
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$dir/raid6check $md0 repair 8 2 5 > /dev/null # D P
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$dir/raid6check $md0 repair 15 4 6 > /dev/null # D Q
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$dir/raid6check $md0 repair 22 5 6 > /dev/null # P Q
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$dir/raid6check $md0 repair 3 4 0 > /dev/null # Q D
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$dir/raid6check $md0 repair 3 3 1 > /dev/null # P D
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$dir/raid6check $md0 repair 6 4 5 > /dev/null # D<D
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$dir/raid6check $md0 repair 13 5 4 > /dev/null # D>D
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blockdev --flushbufs $devs; sync
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echo 3 > /proc/sys/vm/drop_caches
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$dir/raid6check $md0 0 0 2>&1 | grep -qs "Error" && { echo errors detected; exit 2; }
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cmp -s -n $array_data_size_in_b $md0 /tmp/RandFile || { echo should not mess up correct stripe ; exit 2; }
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mdadm -S $md0
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udevadm settle
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blockdev --flushbufs $md0 $devs; sync
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