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If the fabric is broken instantly, the drives connected on the fabric will disappear from the system. For worst case, the lease is timeout and the drives cannot recovery back. So a new test is added to emulate this scenario, it uses a drive for LVM operations and this drive is also used for locking scheme; if the drive and all its associated paths (if the drive supports multiple paths) are disconnected, the lock manager should stop the lockspace for the VG/LVs. And afterwards, if the drive recovers back, the VG/LV resident in the drive should be operated properly. The test command is as below: # make check_lvmlockd_idm \ LVM_TEST_BACKING_DEVICE=/dev/sdp3 LVM_TEST_FAILURE=1 \ T=idm_fabric_failure_timeout.sh Signed-off-by: Leo Yan <leo.yan@linaro.org>
75 lines
2.2 KiB
Bash
75 lines
2.2 KiB
Bash
#!/usr/bin/env bash
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# Copyright (C) 2020 Seagate, 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 v2.
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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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[ -z "$LVM_TEST_LOCK_TYPE_IDM" ] && skip;
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[ -z "$LVM_TEST_FAILURE" ] && skip;
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aux prepare_devs 1
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aux extend_filter_LVMTEST
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DRIVE1=`dmsetup deps -o devname $dev1 | awk '{gsub(/[()]/,""); print $4;}' | sed 's/[0-9]*$//'`
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# The previous device-mapper are removed, but LVM still can directly
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# access VGs from the specified physical drives. So enable drives
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# for these drives.
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aux extend_filter_LVMTEST "a|/dev/$DRIVE1*|"
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aux lvmconf "devices/allow_changes_with_duplicate_pvs = 1"
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vgcreate $SHARED $vg "$dev1"
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# Create new logic volume
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lvcreate -a ey --zero n -l 1 -n $lv1 $vg
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drive_list=($DRIVE1)
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# Find all drives with the same WWN and delete them from system,
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# so that we can emulate the same drive with multiple paths are
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# disconnected with system.
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drive_wwn=`udevadm info /dev/${DRIVE1} | awk -F= '/E: ID_WWN=/ {print $2}'`
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for dev in /dev/*; do
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if [ -b "$dev" ] && [[ ! "$dev" =~ [0-9] ]]; then
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wwn=`udevadm info "${dev}" | awk -F= '/E: ID_WWN=/ {print $2}'`
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if [ "$wwn" = "$drive_wwn" ]; then
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base_name="$(basename -- ${dev})"
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drive_list+=("$base_name")
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host_list+=(`readlink /sys/block/$base_name | awk -F'/' '{print $6}'`)
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fi
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fi
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done
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for d in "${drive_list[@]}"; do
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[ -f /sys/block/$d/device/delete ] && echo 1 > /sys/block/$d/device/delete
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done
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# Fail to create new logic volume
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not lvcreate -a n --zero n -l 1 -n $lv2 $vg
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# Wait for lock time out caused by drive failure
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sleep 70
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check grep_lvmlockd_dump "S lvm_$vg kill_vg"
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lvmlockctl --drop $vg
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# Rescan drives so can probe the deleted drives and join back them
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for h in "${host_list[@]}"; do
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[ -f /sys/class/scsi_host/${h}/scan ] && echo "- - -" > /sys/class/scsi_host/${h}/scan
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done
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# After the drive is reconnected, $vg should be visible again.
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vgchange --lock-start
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vgremove -ff $vg
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