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