58 lines
1.4 KiB
Plaintext
58 lines
1.4 KiB
Plaintext
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# Check integrity of raid6 in degraded modes
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# Create a 5 disk raid6, dump some data to it, then
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# sha1sum it with different pairs of devices failed
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if [ "$INTEGRITY" != "yes" ]; then
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echo -ne 'skipping... '
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exit 0
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fi
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layouts='ls rs la ra'
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lv=`uname -r`
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if expr $lv '>=' 2.6.30 > /dev/null
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then
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layouts="$layouts parity-first ddf-zero-restart ddf-N-restart ddf-N-continue \
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left-asymmetric-6 right-asymmetric-6 left-symmetric-6 right-symmetric-6 parity-first-6"
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fi
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for layout in $layouts
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do
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mdadm -CR $md0 -l6 --layout $layout -n5 $dev0 $dev1 $dev2 $dev3 $dev4
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check wait
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tar cf - /etc > $md0
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sum=`sha1sum $md0`
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totest=
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for second in $dev0 $dev1 $dev2 $dev3 $dev4
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do
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mdadm $md0 -f $second
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mdadm $md0 -r $second
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blockdev --flushbufs $md0
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sum1=`sha1sum $md0`
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if [ "$sum" != "$sum1" ]
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then
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echo $sum does not match $sum1 with $second missing
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exit 1
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fi
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for first in $totest
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do
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mdadm $md0 -f $first
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mdadm $md0 -r $first
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blockdev --flushbufs $md0
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sum1=`sha1sum $md0`
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if [ "$sum" != "$sum1" ]
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then
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echo $sum does not match $sum1 with $first and $second missing
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exit 1
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fi
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mdadm $md0 -a $first
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while ! (check state 'U*_U*'); do check wait; sleep 0.2; done
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done
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mdadm $md0 -a $second
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while ! (check state 'U*'); do check wait; sleep 0.2; done
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totest="$totest $second"
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done
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mdadm -S $md0
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done
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