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5838c41a35
Allow RAID scrubbing on cache origin sub-LV This patch adds the ability to perform RAID scrubbing on the cache origin sub-LV (https://bugzilla.redhat.com/1169495). Cache origin operations are restricted to non-clustered RAID LVs until there can be further testing in a cluster (even for exclusive activation). User can either specify directly _corig LV or he can specify cache LV and operation --syncation is passed ONLY to _corig LV. If users wants to manipulation with cache-pool devices - he needs to specify this object name. Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
97 lines
2.8 KiB
Bash
97 lines
2.8 KiB
Bash
#!/bin/sh
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# Copyright (C) 2014-2015 Red Hat, Inc. All rights reserved.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions
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# of the GNU General Public License v.2.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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# test activation race for raid's --syncaction check
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SKIP_WITH_LVMLOCKD=1
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SKIP_WITH_LVMPOLLD=1
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. lib/inittest
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# Proper mismatch count 1.5.2+ upstream, 1.3.5 < x < 1.4.0 in RHEL6
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aux have_raid 1 3 5 &&
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! aux have_raid 1 4 0 ||
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aux have_raid 1 5 2 || skip
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aux prepare_vg 3
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lvcreate -n $lv1 $vg -l1 --type raid1
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aux wait_for_sync $vg $lv1
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START=$(get pv_field "$dev2" pe_start --units 1k)
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METASIZE=$(get lv_field $vg/${lv1}_rmeta_1 size -a --units 1k)
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SEEK=$((${START%\.00k} + ${METASIZE%\.00k}))
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# Overwrite some portion of _rimage_1
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#aux delay_dev "$dev2" 10 10
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dd if=/dev/urandom of="$dev2" bs=1K count=1 seek=$SEEK oflag=direct
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# FIXME
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# Some delay - there is currently race in upstream kernel
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# test may occasionaly fail with:
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# device-mapper: message ioctl on failed: Device or resource busy
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#
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# Heinz's kernel seems to fix this particular issue but
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# has some other problem for now
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aux udev_wait
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lvchange --syncaction check $vg/$lv1
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# Wait till scrubbing is finished
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aux wait_for_sync $vg $lv1
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check lv_field $vg/$lv1 raid_mismatch_count "128"
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# Let's deactivate
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lvchange -an $vg/$lv1
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lvchange -ay $vg/$lv1
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# noone has it open and target is read & running
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dmsetup info -c | grep $vg
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#sleep 10 < "$DM_DEV_DIR/$vg/$lv1" &
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# "check" should find discrepancies but not change them
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# 'lvs' should show results
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# FIXME
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# this looks like some race with 'write' during activation
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# and syncaction...
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# For now it fails with:
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# device-mapper: message ioctl on failed: Device or resource busy
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#
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# As solution for now - user needs to run --synaction on synchronous raid array
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#
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aux wait_for_sync $vg $lv1
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# Check raid array doesn't know about error yet
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check lv_field $vg/$lv1 raid_mismatch_count "0"
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# Start scrubbing
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lvchange --syncaction check $vg/$lv1
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# Wait till scrubbing is finished
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aux wait_for_sync $vg $lv1
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# Retest mistmatch exists
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check lv_field $vg/$lv1 raid_mismatch_count "128"
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lvremove -ff $vg
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# Bug 1169495 - RFE: allow raid scrubbing on cache origin raid volumes
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# lvcreate RAID1 origin, lvcreate cache-pool, and lvconvert to cache
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# then test that the origin can be scrubbed.
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lvcreate --type raid1 -m 1 --nosync -l 2 -n $lv1 $vg
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lvcreate --type cache-pool -l 1 -n ${lv1}_cachepool $vg
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lvconvert --cache -Zy --cachepool $vg/${lv1}_cachepool $vg/$lv1
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lvchange --syncaction check $vg/${lv1}_corig
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# Check may go too quickly to verify with check of syncaction
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vgremove -ff $vg
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