56 lines
1.6 KiB
Bash
56 lines
1.6 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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multipath -F
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service multipathd stop
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sleep 15
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modprobe -r scsi_debug
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rt=$?
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while [ $rt -ne 0 ]
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do
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sleep 15
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modprobe -r scsi_debug
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rt=$?
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done
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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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modprobe scsi_debug dev_size_mb=1024 num_tgts=1 vpd_use_hostno=0 add_host=2 delay=20 max_luns=2 no_lun_0=1 opts=2 every_nth=1
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sleep 5
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service multipathd restart
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sleep 10
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disk1=`multipath -ll | grep -A 5 scsi_debug | grep -oE "sd." | head -1`
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if [ -z "$disk1" ]; then
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cleanup
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exit 1
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fi
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IO_error=`dd if=/dev/zero of=/dev/$disk1 bs=1024 count=262144 2>&1 | grep -o "Input/output error" `
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if [ -n "$IO_error" ];then
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echo "------- PASS, a medium error, correctly generate an I/O error and do not get infinitely retried -----"
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cleanup
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else
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echo "------- FAIL, 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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