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