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authorMichael Tokarev <mjt@tls.msk.ru>2014-12-20 08:48:44 +0000
committerMichael Tokarev <mjt@tls.msk.ru>2014-12-20 08:48:44 +0000
commit489bea7ee8e1dbecfa517b8415568044ab57c73a (patch)
tree44d4878d4c7da3f4908ea9a765ef9b8f9c141756 /tests/07changelevels
mdadm (3.3.2-5) unstable; urgency=medium
* use-tempnode-not-devnode.patch: change udev rules file to use $tempnode which works both on wheezy and jessie udev, instead of $devnode which only works in jessie. At this stage it is better to make rules file compatible with old version instead of adding versioned dependency. Should be removed for jessie+1. (Closes: #770883) * fix Closes: list in previous entry (Closes: #771852) # imported from the archive
Diffstat (limited to 'tests/07changelevels')
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diff --git a/tests/07changelevels b/tests/07changelevels
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+
+# Test changing of level, chunksize etc.
+# Create a RAID1, convert to RAID5, add a disk, add another disk
+# convert to RAID6, back to RAID5 and ultimately to RAID1
+
+testK=$[64*3*6]
+dd if=/dev/urandom of=/tmp/RandFile bs=1024 count=$testK
+export MDADM_GROW_VERIFY=1
+
+dotest() {
+ sleep 2
+ check wait
+ testdev $md0 $1 19968 64 nd
+ blockdev --flushbufs $md0
+ cmp -s -n $[textK*1024] $md0 /tmp/RandFile || { echo cmp failed; exit 2; }
+ # write something new - shift chars 4 space
+ tr ' -~' '$-~ -#' < /tmp/RandFile > /tmp/RandFile2
+ mv /tmp/RandFile2 /tmp/RandFile
+ dd if=/tmp/RandFile of=$md0
+}
+
+checkgeo() {
+ # check the geometry of an array
+ # level raid_disks chunk_size layout
+ dev=$1
+ shift
+ sleep 0.5
+ check wait
+ for attr in level raid_disks chunk_size layout
+ do
+ if [ $# -gt 0 ] ; then
+ val=$1
+ shift
+ if [ " `cat /sys/block/$dev/md/$attr`" != " $val" ]
+ then echo "$attr doesn't match for $dev"
+ exit 1
+ fi
+ fi
+ done
+}
+
+
+bu=/tmp/md-test-backup
+rm -f $bu
+mdadm -CR $md0 -l1 -n2 -x1 $dev0 $dev1 $dev2 -z 19968
+testdev $md0 1 $mdsize1a 64
+dd if=/tmp/RandFile of=$md0
+dotest 1
+
+mdadm --grow $md0 -l5 -n3 --chunk 64
+dotest 2
+
+mdadm $md0 --add $dev3 $dev4
+mdadm --grow $md0 -n4 --chunk 32
+dotest 3
+
+mdadm -G $md0 -l6 --backup-file $bu
+dotest 3
+
+mdadm -G /dev/md0 --array-size 39936
+mdadm -G $md0 -n4 --backup-file $bu
+checkgeo md0 raid6 4 $[32*1024]
+dotest 2
+
+mdadm -G $md0 -l5 --backup-file $bu
+checkgeo md0 raid5 3 $[32*1024]
+dotest 2
+
+mdadm -G /dev/md0 --array-size 19968
+mdadm -G $md0 -n2 --backup-file $bu
+checkgeo md0 raid5 2 $[32*1024]
+dotest 1
+
+mdadm -G --level=1 $md0
+dotest 1
+
+# now repeat that last few steps only with a degraded array.
+mdadm -S $md0
+mdadm -CR $md0 -l6 -n5 $dev0 $dev1 $dev2 $dev3 $dev4
+dd if=/tmp/RandFile of=$md0
+dotest 3
+
+mdadm $md0 --fail $dev0
+
+mdadm -G /dev/md0 --array-size 37888
+mdadm -G $md0 -n4 --backup-file $bu
+dotest 2
+checkgeo md0 raid6 4 $[512*1024]
+mdadm $md0 --fail $dev4
+
+mdadm $md0 --fail $dev3
+# now double-degraded.
+# switch layout to a DDF layout and back to make sure that works.
+
+mdadm -G /dev/md0 --layout=ddf-N-continue --backup-file $bu
+checkgeo md0 raid6 4 $[512*1024] 10
+dotest 2
+mdadm -G /dev/md0 --layout=ra --backup-file $bu
+checkgeo md0 raid6 4 $[512*1024] 1
+dotest 2
+
+mdadm -G $md0 -l5 --backup-file $bu
+dotest 2
+
+mdadm -G /dev/md0 --array-size 18944
+mdadm -G $md0 -n2 --backup-file $bu
+dotest 1
+checkgeo md0 raid5 2 $[512*1024]
+mdadm $md0 --fail $dev2
+
+mdadm -G --level=1 $md0
+dotest 1
+checkgeo md0 raid1 2