63 lines
1.8 KiB
Bash
Executable File
63 lines
1.8 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: LiLin <lilin@redhat.com>
|
|
|
|
function cleanup()
|
|
{
|
|
sleep 5
|
|
udevadm settle
|
|
multipath -F
|
|
sleep 5
|
|
modprobe -r scsi_debug
|
|
|
|
return 0
|
|
}
|
|
|
|
yum -y install device-mapper device-mapper-multipath
|
|
mpathconf --enable
|
|
service multipathd stop
|
|
modprobe scsi_debug num_tgts=1 vpd_use_hostno=0 add_host=2 delay=20 max_luns=2 no_lun_0=1 opts=2
|
|
sleep 5
|
|
multipath > /dev/null
|
|
sleep 5
|
|
mpathdev=`multipath -l | grep scsi_debug | awk '{print $1}' | head -1`
|
|
if [ -z "$mpathdev" ]; then
|
|
echo "------- FAIL, no multipath device created -----"
|
|
cleanup
|
|
exit 1
|
|
fi
|
|
before_active=`multipath -l $mpathdev | grep "active undef" | wc -l`
|
|
|
|
IO_error=`dd if=/dev/zero of=/dev/mapper/$mpathdev bs=1024 seek=2330 count=10 2>&1 | grep -o "Input/output error" `
|
|
if [ -n "$IO_error" ];then
|
|
after_active=`multipath -l $mpathdev | grep "active undef" | wc -l`
|
|
if [ "$before_active" -eq "$after_active" ]; then
|
|
echo "------- PASS, a medium error, correctly generated an I/O error and did not fail paths -----"
|
|
cleanup
|
|
exit 0
|
|
else
|
|
echo "------- FAIL, paths failed -----"
|
|
cleanup
|
|
exit 1
|
|
fi
|
|
else
|
|
echo "------- FAIL, did not generate an I/O error -----"
|
|
cleanup
|
|
exit 1
|
|
fi
|