95 lines
3.4 KiB
Diff
95 lines
3.4 KiB
Diff
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From fc0495ea04a96c0990726db98c80bd2732d3695a Mon Sep 17 00:00:00 2001
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From: Leo Yan <leo.yan@linaro.org>
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Date: Thu, 3 Jun 2021 17:59:18 +0800
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Subject: [PATCH 22/33] tests: idm: Add testing for the fabric failure
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When the fabric failure occurs, it will lose the connection with hosts
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instantly, and after a while it can recovery back so that the hosts can
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continue to access the drives.
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For this case, the locking manager should be reliable for this case and
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can dynamically handle this case and allows user to continue to use the
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VG/LV with associated locking scheme.
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This patch adds a testing to emulate the fabric faliure, verify LVM
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commands for this case. The testing usage is:
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# make check_lvmlockd_idm \
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LVM_TEST_BACKING_DEVICE=/dev/sdo3,/dev/sdp3,/dev/sdp4 \
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LVM_TEST_FAILURE=1 T=idm_fabric_failure.sh
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Signed-off-by: Leo Yan <leo.yan@linaro.org>
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Signed-off-by: Heming Zhao <heming.zhao@suse.com>
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---
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test/shell/idm_fabric_failure.sh | 58 ++++++++++++++++++++++++++++++++++++++++
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1 file changed, 58 insertions(+)
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create mode 100644 test/shell/idm_fabric_failure.sh
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diff --git a/test/shell/idm_fabric_failure.sh b/test/shell/idm_fabric_failure.sh
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new file mode 100644
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index 000000000000..e68d6ad07be0
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--- /dev/null
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+++ b/test/shell/idm_fabric_failure.sh
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@@ -0,0 +1,58 @@
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+#!/usr/bin/env bash
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+
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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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+
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+SKIP_WITH_LVMPOLLD=1
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+
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+. lib/inittest
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+
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+[ -z "$LVM_TEST_FAILURE" ] && skip;
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+
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+aux prepare_devs 3
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+aux extend_filter_LVMTEST
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+
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+vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3"
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+
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+# Create new logic volume
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+lvcreate -a ey --zero n -l 50%FREE -n $lv1 $vg
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+
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+DRIVE1=`dmsetup deps -o devname $dev1 | awk '{gsub(/[()]/,""); print $4;}' | sed 's/[0-9]*$//'`
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+DRIVE2=`dmsetup deps -o devname $dev2 | awk '{gsub(/[()]/,""); print $4;}' | sed 's/[0-9]*$//'`
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+DRIVE3=`dmsetup deps -o devname $dev3 | awk '{gsub(/[()]/,""); print $4;}' | sed 's/[0-9]*$//'`
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+
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+HOST1=`readlink /sys/block/$DRIVE1 | awk -F'/' '{print $6}'`
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+HOST2=`readlink /sys/block/$DRIVE2 | awk -F'/' '{print $6}'`
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+HOST3=`readlink /sys/block/$DRIVE3 | awk -F'/' '{print $6}'`
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+
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+# Emulate fabric failure
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+echo 1 > /sys/block/$DRIVE1/device/delete
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+[ -f /sys/block/$DRIVE2/device/delete ] && echo 1 > /sys/block/$DRIVE2/device/delete
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+[ -f /sys/block/$DRIVE3/device/delete ] && echo 1 > /sys/block/$DRIVE3/device/delete
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+
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+# Wait for 10s and will not lead to timeout
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+sleep 10
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+
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+# Rescan drives so can probe the deleted drives and join back them
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+echo "- - -" > /sys/class/scsi_host/${HOST1}/scan
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+echo "- - -" > /sys/class/scsi_host/${HOST2}/scan
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+echo "- - -" > /sys/class/scsi_host/${HOST3}/scan
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+
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+not check grep_lvmlockd_dump "S lvm_$vg kill_vg"
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+
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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/$DRIVE1*|" "a|/dev/$DRIVE2*|" "a|/dev/$DRIVE3*|"
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+aux lvmconf "devices/allow_changes_with_duplicate_pvs = 1"
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+
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+lvcreate -a n --zero n -l 10 -n $lv2 $vg
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+
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+vgremove -ff $vg
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--
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1.8.3.1
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