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>
77 lines
1.9 KiB
Plaintext
77 lines
1.9 KiB
Plaintext
#
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# Test basic DDF functionality.
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#
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# Create a container with 5 drives
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# create a small raid0 across them all, then a 2disk raid1
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# and a 3disk raid5 using the remaining space
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#
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# add some data, tear down the array, reassemble
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# and make sure it is still there.
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mdadm -CR /dev/md/ddf0 -e ddf -n 5 $dev8 $dev9 $dev10 $dev11 $dev12
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mdadm -CR r0 -l0 -n5 /dev/md/ddf0 -z 5000
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mdadm -CR r1 -l1 -n2 /dev/md/ddf0
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mdadm -CR r5 -l5 -n3 /dev/md/ddf0
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testdev /dev/md/r0 5 5000 512
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# r0 will use 4608 due to chunk size, so that leaves 28160 for the rest
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testdev /dev/md/r1 1 28160 1
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testdev /dev/md/r5 2 28160 512
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dd if=/dev/sda of=/dev/md/r0 || true
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dd if=/dev/sda of=/dev/md/r1 || true
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dd if=/dev/sda of=/dev/md/r5 || true
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s0=`sha1sum /dev/md/r0`
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s1=`sha1sum /dev/md/r1`
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s5=`sha1sum /dev/md/r5`
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mdadm -Ss
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mdadm -A /dev/md/ddf0 $dev8 $dev9 $dev10 $dev11 $dev12
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mdadm -I /dev/md/ddf0
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s0a=`sha1sum /dev/md/r0`
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s1a=`sha1sum /dev/md/r1`
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s5a=`sha1sum /dev/md/r5`
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if [ "$s0" != "$s0a" ]; then
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echo r0 did not match ; exit 1;
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fi
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if [ "$s1" != "$s1a" ]; then
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echo r1 did not match ; exit 1;
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fi
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if [ "$s5" != "$s5a" ]; then
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echo r5 did not match ; exit 1;
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fi
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# failure status just means it has completed already, so ignore it.
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mdadm --wait /dev/md/r1 || true
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mdadm --wait /dev/md/r5 || true
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mdadm -Dbs > /var/tmp/mdadm.conf
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mdadm -Ss
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# Now try to assemble using mdadm.conf
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mdadm -Asc /var/tmp/mdadm.conf
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check nosync # This failed once. The raid5 was resyncing.
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mdadm -Dbs | sort > /tmp/mdadm.conf
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sort /var/tmp/mdadm.conf | diff /tmp/mdadm.conf -
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mdadm -Ss
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# and now assemble fully incrementally.
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for i in $dev8 $dev9 $dev10 $dev11 $dev12
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do
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#./mdadm -I $i -vv 2>&1 | wc -l > /tmp/cnt
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./mdadm -I $i 2> /tmp/thing
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wc -l < /tmp/thing > /tmp/cnt
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# should find container and 2 devices, so 3 lines.
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[ `cat /tmp/cnt` -eq 3 ]
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done
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check nosync
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mdadm -Dbs | sort > /tmp/mdadm.conf
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sort /var/tmp/mdadm.conf | diff /tmp/mdadm.conf -
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mdadm -Ss
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rm /tmp/mdadm.conf /var/tmp/mdadm.conf
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