5f175898de
This seems more appropriate for current (and recent) model drives than 64K. 64K is still the default for '--build' as changing that could corrupt data. 64K is also the default rounding for 'linear' on kernels older than 2.6.16. Signed-off-by: NeilBrown <neilb@suse.de>
34 lines
761 B
Plaintext
34 lines
761 B
Plaintext
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#
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# test interrupting and restarting raid5 reshape.
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set -x
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devs="$dev1"
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st=UU
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for disks in 2 3 4 5
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do
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eval devs=\"$devs \$dev$disks\"
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st=U$st
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for d in $devs
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do dd if=/dev/urandom of=$d bs=1024 || true
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done
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mdadm -CR $md0 -amd -l5 -c 256 -n$disks --assume-clean $devs
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mdadm $md0 --add $dev6
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echo 20 > /proc/sys/dev/raid/speed_limit_max
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mdadm --grow $md0 -n $[disks+1]
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check reshape
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check state $st
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mdadm --stop $md0
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mdadm --assemble $md0 $devs $dev6
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check reshape
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echo 2000 > /proc/sys/dev/raid/speed_limit_max
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check wait
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echo check > /sys/block/md0/md/sync_action
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check wait
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mm=`cat /sys/block/md0/md/mismatch_cnt`
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if [ $mm -gt 0 ]
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then echo >&2 "ERROR mismatch_cnt non-zero : $mm" ; exit 1
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fi
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mdadm -S $md0
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done
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