95 lines
3.0 KiB
Bash
95 lines
3.0 KiB
Bash
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#!/bin/bash
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# Copyright (c) 2016 Red Hat, Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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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, see <http://www.gnu.org/licenses/>.
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# Author: Lin Li <lilin@redhat.com>
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#set -x
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source ../include/ec.sh || exit 200
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tlog "running $0"
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# which not set find_multipaths yes, so multipath always create a multipath device for single device
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# so stop service and reconfig with --find_multipaths y, and reload/start the service again.
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trun "service multipathd stop"
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rpm -q device-mapper-multipath || yum install -y device-mapper-multipath
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# test with find_multipath=y, will not multipath for the single device; reload/start the service to enable the config
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trun "mpathconf --enable --user_friendly_names y --find_multipaths y --with_multipathd y"
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trun "service multipathd status"
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# use scsi_debug to simulate a drive
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trun "multipath -F"
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terr "modprobe -r scsi_debug"
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trun "modprobe scsi_debug"
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sleep 3
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trun "multipath -W"
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cat /etc/multipath/wwids
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trun "multipath"
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disk_path=$(get_scsi_debug_devices)
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disk_node=$(basename $disk_path)
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mpath_name=$(get_mpath_disk_by_scsi_device $disk_node)
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tok '[[ -z $mpath_name ]]'
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# test with find_multipath=n, will multipath for the single device
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trun "mpathconf --enable --user_friendly_names y --find_multipaths n --with_multipathd y"
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sleep 5
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trun "multipath"
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mpath_name=$(get_mpath_disk_by_scsi_device $disk_node)
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tok "is_mpath $mpath_name"
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# flush new created path
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sleep 3
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trun "multipath -F"
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sleep 3
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# test with find_multipath=y, A path has the same WWID as a multipath device that was previously created
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trun "mpathconf --enable --user_friendly_names y --find_multipaths y --with_multipathd y"
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sleep 5
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trun "multipath"
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mpath_name=$(get_mpath_disk_by_scsi_device $disk_node)
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tok "is_mpath $mpath_name"
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# Clear wwid, test with find_multipath=y, will not multipath for the single device
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trun "multipath -W"
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trun "mpathconf --disable --with_multipathd y"
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sleep 5
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mpath_name=$(get_mpath_disk_by_scsi_device $disk_node)
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tok '[[ -z $mpath_name ]]'
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trun "multipath -F"
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sleep 5
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trun "modprobe -r scsi_debug"
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# test find_multipaths=y create device for paths have same wwid
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tok "modprobe scsi_debug num_tgts=1 vpd_use_hostno=0 add_host=2 delay=20 max_luns=2 no_lun_0=1"
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sleep 10
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disk_paths=$(get_scsi_debug_devices)
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disk_node=$(basename $disk_paths)
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mpath_name=$(get_mpath_disk_by_scsi_device $disk_node)
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tok "is_mpath $mpath_name"
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sleep 10
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trun "multipath -F"
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sleep 5
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trun "modprobe -r scsi_debug"
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# remove the scsi_debug wwid
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trun "service multipathd stop"
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sleep 3
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trun "multipath -W"
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cat /etc/multipath/wwids
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tend
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