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git://sourceware.org/git/lvm2.git
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3d3f62e10a
Commit 76ef2d15d8 introduced
raid0 <-> raid4 takeover and full mirror <-> raid1 support.
Add tests for these conversions.
Tests exposed a kernel semantics change freezing resynchronization
on conversions from raid0[_meta] -> raid4 or adding raid1 legs
because kernel kept the RAID mapped device in 'frozen' state unless
an 'idle' message was sent or the table was reloaded (kernel patch pending).
127 lines
3.5 KiB
Bash
127 lines
3.5 KiB
Bash
#!/bin/sh
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# Copyright (C) 2016 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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SKIP_WITH_LVMLOCKD=1
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SKIP_WITH_LVMPOLLD=1
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. lib/inittest
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aux have_raid 1 9 0 || skip
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aux prepare_vg 9 288
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# Delay 1st leg so that rebuilding status characters
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# can be read before resync finished too quick.
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# aux delay_dev "$dev1" 0 1
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# Create 3-way mirror
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lvcreate --yes --type mirror -m 2 -L 256M -n $lv1 $vg
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check lv_field $vg/$lv1 segtype "mirror"
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check lv_field $vg/$lv1 stripes 3
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echo y | mkfs -t ext4 /dev/mapper/$vg-$lv1
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aux wait_for_sync $vg $lv1
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fsck -fn /dev/mapper/$vg-$lv1
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# Convert 3-way to 4-way mirror
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lvconvert -m 3 $vg/$lv1
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check lv_field $vg/$lv1 segtype "mirror"
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check lv_field $vg/$lv1 stripes 4
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fsck -fn /dev/mapper/$vg-$lv1
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aux wait_for_sync $vg $lv1
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fsck -fn /dev/mapper/$vg-$lv1
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# Takeover 4-way mirror to raid1
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lvconvert --yes --type raid1 $vg/$lv1
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check lv_field $vg/$lv1 segtype "raid1"
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check lv_field $vg/$lv1 stripes 4
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fsck -fn /dev/mapper/$vg-$lv1
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## Convert 4-way raid1 to 5-way
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lvconvert -m 4 $vg/$lv1
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check lv_field $vg/$lv1 segtype "raid1"
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check lv_field $vg/$lv1 stripes 5
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fsck -fn /dev/mapper/$vg-$lv1
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aux wait_for_sync $vg $lv1
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fsck -fn /dev/mapper/$vg-$lv1
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# FIXME: enable once lvconvert rejects early
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## Try converting 4-way raid1 to 9-way
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#not lvconvert --yes -m 8 $vg/$lv1
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#check lv_field $vg/$lv1 segtype "raid1"
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#check lv_field $vg/$lv1 stripes 4
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# Convert 5-way raid1 to 2-way
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lvconvert --yes -m 1 $vg/$lv1
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lvs $vg/$lv1
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dmsetup status $vg-$lv1
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dmsetup table $vg-$lv1
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check lv_field $vg/$lv1 segtype "raid1"
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check lv_field $vg/$lv1 stripes 2
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fsck -fn /dev/mapper/$vg-$lv1
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# Convert 2-way raid1 to mirror
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lvconvert --yes --type mirror $vg/$lv1
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check lv_field $vg/$lv1 segtype "mirror"
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check lv_field $vg/$lv1 stripes 2
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aux wait_for_sync $vg $lv1
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fsck -fn /dev/mapper/$vg-$lv1
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aux wait_for_sync $vg $lv1
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# Clean up
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lvremove --yes $vg/$lv1
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# Create 3-way raid0
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lvcreate -y --type raid0 -i 3 -L 256M -n $lv1 $vg
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check lv_field $vg/$lv1 segtype "raid0"
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check lv_field $vg/$lv1 stripes 3
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echo y | mkfs -t ext4 /dev/mapper/$vg-$lv1
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fsck -fn /dev/mapper/$vg-$lv1
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# Convert raid0 -> raid4
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lvconvert -y --ty raid4 $vg/$lv1
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lvchange --refresh $vg/$lv1
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check lv_field $vg/$lv1 segtype "raid4"
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check lv_field $vg/$lv1 stripes 4
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fsck -fn /dev/mapper/$vg-$lv1
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aux wait_for_sync $vg $lv1
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fsck -fn /dev/mapper/$vg-$lv1
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# Convert raid4 -> raid0_meta
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lvconvert -y --ty raid0_meta $vg/$lv1
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check lv_field $vg/$lv1 segtype "raid0_meta"
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check lv_field $vg/$lv1 stripes 3
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fsck -fn /dev/mapper/$vg-$lv1
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# Convert raid0_meta -> raid4
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lvconvert -y --ty raid4 $vg/$lv1
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fsck -fn /dev/mapper/$vg-$lv1
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check lv_field $vg/$lv1 segtype "raid4"
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check lv_field $vg/$lv1 stripes 4
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aux wait_for_sync $vg $lv1
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fsck -fn /dev/mapper/$vg-$lv1
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# Convert raid4 -> raid0
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lvconvert -y --ty raid0 $vg/$lv1
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check lv_field $vg/$lv1 segtype "raid0"
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check lv_field $vg/$lv1 stripes 3
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fsck -fn /dev/mapper/$vg-$lv1
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# Convert raid0 -> raid4
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lvconvert -y --ty raid4 $vg/$lv1
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lvchange --refresh $vg/$lv1
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check lv_field $vg/$lv1 segtype "raid4"
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check lv_field $vg/$lv1 stripes 4
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fsck -fn /dev/mapper/$vg-$lv1
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aux wait_for_sync $vg $lv1
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fsck -fn /dev/mapper/$vg-$lv1
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vgremove -ff $vg
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