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79 lines
2.0 KiB
Bash
79 lines
2.0 KiB
Bash
#!/usr/bin/env bash
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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_LVMPOLLD=1
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. lib/inittest
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MOUNT_DIR=mnt
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MKFS=$(which mkfs.ext3) || skip
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cleanup_mounted_and_teardown()
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{
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umount "$MOUNT_DIR" || true
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aux teardown
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}
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aux lvmconf 'allocation/mirror_logs_require_separate_pvs = 1'
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aux prepare_vg 5
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################### Check lost mirror leg #################
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#
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# NOTE: using --regionsize 1M has major impact on my box
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# on read performance while mirror is synchronized
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# with the default 512K - my C2D T61 reads just couple MB/s!
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#
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lvcreate -aey --type mirror -L10 --regionsize 1M -m1 -n $lv1 $vg "$dev1" "$dev2" "$dev3"
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"$MKFS" "$DM_DEV_DIR/$vg/$lv1"
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mkdir "$MOUNT_DIR"
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aux delay_dev "$dev2" 0 500 "$(get first_extent_sector "$dev2"):"
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aux delay_dev "$dev4" 0 500 "$(get first_extent_sector "$dev4"):"
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#
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# Enforce syncronization
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# ATM requires unmounted/unused LV??
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#
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lvchange --yes --resync $vg/$lv1
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trap 'cleanup_mounted_and_teardown' EXIT
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mount "$DM_DEV_DIR/$vg/$lv1" "$MOUNT_DIR"
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# run 'dd' operation during failure of 'mlog/mimage' device
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dd if=/dev/zero of=mnt/zero bs=4K count=100 conv=fdatasync 2>err &
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PERCENT=$(get lv_field $vg/$lv1 copy_percent)
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PERCENT=${PERCENT%%\.*} # cut decimal
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# and check less than 50% mirror is in sync (could be unusable delay_dev ?)
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test "$PERCENT" -lt 50 || skip
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#lvs -a -o+devices $vg
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#aux disable_dev "$dev3"
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aux disable_dev "$dev2"
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lvconvert --yes --repair $vg/$lv1
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lvs -a $vg
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aux enable_dev "$dev2"
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wait
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# dd MAY NOT HAVE produced any error message
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not grep error err
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lvs -a -o+devices $vg
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umount "$MOUNT_DIR"
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fsck -n "$DM_DEV_DIR/$vg/$lv1"
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aux enable_dev "$dev4"
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lvremove -ff $vg
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