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#!/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>
source ../include/ec.sh || exit 200
tlog "running $0"
trun "rpm -q device-mapper-multipath || yum install -y device-mapper-multipath"
trun "mpathconf --enable --with_multipathd y --user_friendly_names y"
# backup the /etc/multipath.conf
trun "cp /etc/multipath.conf /etc/multipath.conf.$$"
trun "multipath -F"
trun "modprobe scsi_debug dev_size_mb=256 num_tgts=1 vpd_use_hostno=0 \
add_host=2 delay=20 max_luns=2 no_lun_0=1"
trun "multipath"
# wwid shown slowly on s390x by the script framework, but normally when run by multipath command directly
# so extend sleep time
sleep 20
disk=$(get_scsi_debug_devices)
disk=$(basename $disk)
wwid=$(get_wwid_of_disk $disk)
mpath=$(get_mpath_disk_by_scsi_device $disk)
# user_friendly_names = yes and mpath=test
#cur_dir=/mnt/tests/kernel/storage/multipath/user_friendly_names/
#cur_dir=/home/test/scratch/device-mapper-multipath/user_friendly_names
trun "cat multipath.conf.yes | sed 's/your_wwid/$wwid/g' > /etc/multipath.conf"
trun "multipath -r"
tok "multipath -ll | grep -w '^test'"
# user_friendly_names = no
trun "cat multipath.conf.no > /etc/multipath.conf"
trun "multipath -r"
tok "multipath -ll | grep -w '^$wwid'"
sleep 10
tok "multipath -F $wwid"
sleep 10
trun "modprobe -r scsi_debug"
trun "cp /etc/multipath.conf.$$ /etc/multipath.conf"
trun "multipath -F; multipath"
tend
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