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7d6cf12554
The MD raid6 personality being used to drive lvm raid6 LVs does read-modify-write updates to any stripes and thus relies on correct P and Q Syndromes being written during initial synchronization or it may fail reconstructing proper user data in case of SubLVs failing. We may not allow the '--nosync' option on creation of raid6 LVs for that reason. Update/fix 'man lvcreate' in that regard. add lvcreate-raid-nosync.sh test script. - Resolves rhbz1358532
86 lines
2.4 KiB
Bash
86 lines
2.4 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 7 0 || skip
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aux prepare_vg 6
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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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# raid0/raid0_meta don't support resynchronization
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for r in raid0 raid0_meta
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do
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lvcreate --yes --type raid0 -i 3 -l 1 -n $lv1 $vg
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aux check_status_chars $vg $lv1 "AAA"
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lvremove --yes $vg/$lv1
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done
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# raid1 supports resynchronization
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lvcreate --yes --type raid1 -m 2 -l 1 -n $lv1 $vg
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aux check_status_chars $vg $lv1 "aaa"
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aux wait_for_sync $vg $lv1
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aux check_status_chars $vg $lv1 "AAA"
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lvremove --yes $vg/$lv1
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# raid1 supports --nosync
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lvcreate --yes --type raid1 --nosync -m 2 -l 1 -n $lv1 $vg
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aux check_status_chars $vg $lv1 "AAA"
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lvremove --yes $vg/$lv1
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for r in raid4 raid5
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do
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# raid4/5 support resynchronization
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lvcreate --yes --type $r -i 3 -l 1 -n $lv1 $vg
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aux check_status_chars $vg $lv1 "aaaa"
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aux wait_for_sync $vg $lv1
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aux check_status_chars $vg $lv1 "AAAA"
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lvremove --yes $vg/$lv1
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# raid4/5 support --nosync
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lvcreate --yes --type $r --nosync -i 3 -l 1 -n $lv1 $vg
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aux check_status_chars $vg $lv1 "AAAA"
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lvremove --yes $vg/$lv1
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done
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# raid6 supports resynchronization
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lvcreate --yes --type raid6 -i 3 -l 1 -n $lv1 $vg
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aux check_status_chars $vg $lv1 "aaaaa"
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aux wait_for_sync $vg $lv1
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aux check_status_chars $vg $lv1 "AAAAA"
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lvremove --yes $vg/$lv1
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# raid6 rejects --nosync; it has to initialize P- and Q-Syndromes
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not lvcreate --yes --type raid6 --nosync -i 3 -l 1 -n $lv1 $vg
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# raid10 supports resynchronization
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lvcreate --yes --type raid10 -m 1 -i 3 -l 1 -n $lv1 $vg
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aux check_status_chars $vg $lv1 "aaaaaa"
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aux wait_for_sync $vg $lv1
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aux check_status_chars $vg $lv1 "AAAAAA"
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aux wait_for_sync $vg $lv1
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lvremove --yes $vg/$lv1
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# raid10 supports --nosync
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lvcreate --yes --type raid10 --nosync -m 1 -i 3 -l 1 -n $lv1 $vg
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aux check_status_chars $vg $lv1 "AAAAAA"
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aux wait_for_sync $vg $lv1
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lvremove --yes $vg/$lv1
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vgremove -ff $vg
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