156 lines
4.3 KiB
Bash
156 lines
4.3 KiB
Bash
#!/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: Lin Li <lilin@redhat.com>
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# filename: loop.sh
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# USAGE
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test x$LXT_MPATH = x || return
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LXT_MPATH=1
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#source /mnt/tests/kernel/storage/include/bash_modules/lxt/tc.sh
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# make sure multipathd is running
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get_mpath_disks()
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{
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multipathd_running || texit "multipathd is not running"
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multipathd -k'show maps' 2>/dev/null | grep '^mpath' | awk '{print
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"/dev/mapper/" $1}'
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return 0
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}
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# make sure multipathd is running
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get_wwid_of_disk()
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{
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# we should not use scsi_id or /dev/disk/by-id to get the wwid
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# since multipath could replace the white spaces of wwid if
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# having white spaces. we should use
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# multipathd show paths format %w %d
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# to get the wwid
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for dev in `ls /dev/disk/by-id/*`
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do
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if readlink $dev | grep -qw "$disk$"
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then
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wwid=$(basename $dev | sed 's/^[^-]*-//g')
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break
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fi
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done
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if test X$wwid = X
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then
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wwid=$(/lib/udev/scsi_id --page=0x83 --whitelisted --device=/dev/$disk)
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fi
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echo $wwid
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# multipathd_running || texit "multipathd is not running"
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# local disk=$1
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# local wwid=$(multipathd show paths format %d,%w | grep "^$disk\s*," | \
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# awk -F, '{ print $2 }' | sed 's/\s//g')
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# echo $wwid
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}
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get_scsi_id()
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{
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dev=$1
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wwid=$(/lib/udev/scsi_id --page=0x83 --whitelisted --device=$dev --replace-whitespace)
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echo $wwid
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}
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# make sure multipathd is running
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get_mpath_disk_by_scsi_device()
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{
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# multipathd_running || texit "multipathd is not running"
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local disk=$1
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local mpath=$(multipathd show paths raw format "%d,%m" | grep "^$disk\s*," \
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| awk -F, '{ print $2 }' | sed 's/\s//g')
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echo $mpath
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}
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# make sure multipathd is running
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get_major_minor_by_scsi_device()
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{
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multipathd_running || texit "multipathd is not running"
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local disk=$1
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local mm=$(multipathd show paths format %d,%D | grep "^$disk\s*," | \
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awk -F, '{ print $2 }' | sed 's/\s//g')
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echo $mm
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}
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# make sure multipathd is running
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get_hcil_by_scsi_device()
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{
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multipathd_running || texit "multipathd is not running"
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local disk=$1
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local hcil=$(multipathd show paths format %d,%i | grep "^$disk\s*," | \
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awk -F, '{ print $2 }' | sed 's/\s//g')
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echo $hcil
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}
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# make sure multipathd is running
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is_mpath()
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{
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multipathd_running || texit "multipathd is not running"
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local mpath=$1
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multipathd show maps format %n | grep -w "^$mpath" &> /dev/null
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}
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multipathd_running()
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{
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pidof multipathd &> /dev/null && return 0
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return 1
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}
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# will set find_multipaths no and start multipathd
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setup_multipath()
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{
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trun "rpm -q device-mapper-multipath || yum install -y device-mapper-multipath" || texit "fail to install multipath"
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test -f /etc/multipath.conf && cp /etc/multipath.conf /etc/multipath.conf.storage_qe
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trun "mpathconf --enable --find_multipaths n --with_multipathd y"
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trun "multipath -r"
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}
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clear_multipath()
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{
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tlog "disable multipath and remove the mpath devices"
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tlog "revert back the multipath.conf if has backup file"
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test -f /etc/multipath.conf.storage_qe && cp /etc/multipath.conf.storage_qe /etc/multipath.conf &>/dev/null
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( multipath -q && multipath -F ) &>/dev/null
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stop_multipathd
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}
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get_unused_mpath()
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{
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multipathd_running &>/dev/null || texit "multipathd is not running"
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rootdisk=$(get_root_disk)
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rootmpath=$(get_mpath_disk_by_scsi_device $rootdisk)
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if is_null $rootmpath; then
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$maps=$(multipathd show maps format "%n" | grep -v name)
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else
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$maps=$(multipathd show maps format "%n" | grep -v name | grep -v $rootmpath)
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fi
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echo $maps
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}
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stop_multipathd() {
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tlog "stop multipathd"
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( pidof multipathd && service multipathd stop || pkill multipathd ) &>/dev/null
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}
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