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|
#!/bin/bash
###############################################################################
# Copyright 2017 IBM Corp.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
###############################################################################
# This script is used to handle xCAT disk initialization and configuration(eg.
# attach/detach a SCSI volume, add an additional ephemeral disk when vm is in
# inactive status). It will be invoked and executed when vm start up.
###############################################################################
version=3.0
function getOsVersion {
# @Description:
# Returns the Linux distro version in an easy to parse format.
# @Input:
# None
# @Output:
# os - Variable set with OS and version information. For example:
# "rhel62" or "sles11sp2"
# @Code:
if [[ -e "/etc/os-release" ]]; then
os=`cat /etc/os-release | grep "^ID=" | sed \
-e 's/ID=//' \
-e 's/"//g'`
version=`cat /etc/os-release | grep "^VERSION_ID=" | sed \
-e 's/VERSION_ID=//' \
-e 's/"//g' \
-e 's/\.//'`
os=$os$version
#The /etc/SuSE-release file will be deprecated in sles11.4 and later release
elif [[ -e "/etc/SuSE-release" ]]; then
os='sles'
version=`cat /etc/SuSE-release | grep "VERSION =" | sed \
-e 's/^.*VERSION =//' \
-e 's/\s*$//' \
-e 's/.//' \
-e 's/[^0-9]*([0-9]+).*/$1/'`
os=$os$version
# Append service level
level=`echo "/etc/SuSE-release" | grep "LEVEL =" | sed \
-e 's/^.*LEVEL =//' \
-e 's/\s*$//' \
-e 's/.//' \
-e 's/[^0-9]*([0-9]+).*/$1/'`
os=$os'sp'$level
#The /etc/redhat-release file will be deprecated in rhel7 and later release
elif [[ -e "/etc/redhat-release" ]]; then
os='rhel'
version=`cat /etc/redhat-release | grep -i "Red Hat Enterprise Linux Server" | sed \
-e 's/[A-Za-z\/\.\(\)]//g' \
-e 's/^ *//g' \
-e 's/ *$//g' \
-e 's/\s.*$//'`
os=$os$version
fi
return
}
function onlineDevice {
# @Description:
# Brings a Linux device online.
# @Input:
# Device number, e.g. "0.0.000c"
# @Output:
# Return code indicates success or failure
# @Code:
device=$1
local funcName="onlineDevice"
rc=$(/sbin/chccwdev -e $device > /dev/null; echo $?)
if (( rc != 0 )); then
if [[ -e /sbin/cio_ignore ]]; then
rc=$(/sbin/cio_ignore -r 0.0.$device > /dev/null; echo $?)
which udevadm &> /dev/null && udevadm settle || udevsettle
fi
rc=$(/sbin/chccwdev -e $device > /dev/null; echo $?)
if (( rc != 0 )); then
echo "$funcName (Error) Could not activate the virtual device $device"
return 1
fi
fi
which udevadm &> /dev/null && udevadm settle || udevsettle
return 0
}
function setupDisk {
# @Description:
# Processes a disk file for the following functions:
# Create a file system node
# Remove a file system node
# Setup a SCSI volume
# Removes a SCSI volume
# Add a mdisk based ephemeral disk
# @Input:
# Disk handling parameters
# @Output:
# None
# @Code:
local funcName="setupDisk"
# Parse the parameter from parameter list
for parameter in $@; do
keyName=${parameter%\=*}
value=${parameter#*\=}
value=$(echo ${value} | sed -e 's/^ *//g')
newKey='xcat_'$keyName
eval $newKey=$value
done
# Remove the invokeScript.sh file after we have read it
rm -f invokeScript.sh
##########################################################################
# Handle creating a file system node
# Disk handler input parameters:
# action - "createfilesysnode"
# srcFile - location/name of the source file for the mknod command
# xcat_tgtFile - location/name of the target file for the mknod command
##########################################################################
if [[ $xcat_action == "createfilesysnode" ]]; then
echo "Creating a file system node, source: $xcat_srcFile, target: $xcat_tgtFile"
if [[ ! -n $xcat_srcFile ]]; then
echo "$funcName (Error) Source file for creating a file system node was not specified"
return
fi
if [[ ! -n $xcat_tgtFile ]]; then
echo "$funcName (Error) Target file for creating a file system node was not specified"
return
fi
if [[ -e $xcat_tgtFile ]]; then
echo "$funcName (Error) Target file for creating a file system node already exists"
return
fi
configFile='/etc/udev/rules.d/56-zfcp.rules'
# Create udev config file if not exist
if [[ ! -e $configFile ]]; then
touch $configFile
if [[ $os == rhel* ]]; then
echo "KERNEL==\"zfcp\", RUN+=\"/sbin/zfcpconf.sh\"" >> ${configFile}
echo "KERNEL==\"zfcp\", RUN+=\"/sbin/multipath -r\"" >> ${configFile}
fi
fi
tgtNode=$(echo ${xcat_tgtFile} | sed -e 's/^\/dev\///')
if [[ $os == sles* || $os == rhel* ]]; then
wwpn_lun=$(echo ${xcat_srcFile} | sed -e 's/^\/dev.*-zfcp-//')
wwpn=$(echo ${wwpn_lun} | sed -e 's/:0x.*//')
lun=$(echo ${wwpn_lun} | sed -e 's/^0x.*://')
else
wwpn_lun=$(echo ${xcat_srcFile} | sed -e 's/^\/dev.*-fc-//')
wwpn=$(echo ${wwpn_lun} | sed -e 's/-lun-.*//')
lun=$(echo ${wwpn_lun} | sed -e 's/^0x.*-lun-//')
fi
multipath=0
out=`echo $wwpn | grep ","`
if [[ -n "$out" ]]; then
multipath=1
fi
if [[ $os == sles* || $os == rhel* ]]; then
fcp=$(echo ${xcat_srcFile} | sed -e 's/^\/dev.*ccw-0.0.//' | sed -e 's/-zfcp-.*$//')
else
fcp=$(echo ${xcat_srcFile} | sed -e 's/^\/dev.*ccw-0.0.//' | sed -e 's/-fc-.*$//')
fi
oldIFS=$IFS
IFS=","
fcpList=($fcp)
for fcp in ${fcpList[@]}
do
if [[ $multipath == 1 ]]; then
# Find the name of the multipath device by arbitrary one path in the set
wwpnList=($wwpn)
for wwpn in ${wwpnList[@]}
do
if [[ ${wwpn:0:2} -ne "0x" ]]; then
wwpn="0x$wwpn"
fi
if [[ $os == sles* || $os == rhel* ]]; then
cur_wwpn_lun=${wwpn}:${lun}
srcFile=$(echo ${xcat_srcFile} | sed -e 's/-zfcp-.*//')"-zfcp-"$cur_wwpn_lun
srcFile=$(echo ${srcFile} | sed -e 's/ccw-.*-zfcp/ccw-0.0.'$fcp'-zfcp/')
else
cur_wwpn_lun=${wwpn}-lun-${lun}
srcFile=$(echo ${xcat_srcFile} | sed -e 's/-fc-.*//')"-fc-"$cur_wwpn_lun
srcFile=$(echo ${srcFile} | sed -e 's/ccw-.*-fc/ccw-0.0.'$fcp'-fc/')
fi
out=`/usr/bin/stat --printf=%n ${srcFile}`
if (( $? != 0 )); then
echo "$funcName (Error) Unable to stat the source file: $srcFile"
continue
fi
out=`/sbin/udevadm info --query=all --name=$srcFile | grep ID_SERIAL=`
devName=$(echo ${out} | sed -e 's/^E:\s//')
multipathUuid=$(echo $devName | sed -e 's/ID_SERIAL=//')
if [[ -n "$multipathUuid" ]]; then
break
fi
done
if [[ -z "$multipathUuid" ]]; then
echo "$funcName (Error) Building up multipath failed!"
return
fi
else
if [[ $os == sles* || $os == rhel* ]]; then
srcFile=$(echo ${xcat_srcFile} | sed -e 's/ccw-.*-zfcp/ccw-0.0.'$fcp'-zfcp/')
else
srcFile=$(echo ${xcat_srcFile} | sed -e 's/ccw-.*-zfcp/ccw-0.0.'$fcp'-fc/')
fi
out=`/usr/bin/stat --printf=%n ${srcFile}`
if (( $? != 0 )); then
echo "$funcName (Error) Unable to stat the source file: $xcat_srcFile"
return
fi
fi
done
IFS=$oldIFS
# Add the entry into udev config file
if [[ $multipath == 1 ]]; then
echo "KERNEL==\"dm*\", ENV{DM_UUID}==\"mpath-${multipathUuid}\", SYMLINK+=\"${tgtNode}\"" >> ${configFile}
udevadm control --reload
udevadm trigger --sysname-match=dm-*
else
echo "KERNEL==\"sd*\", ATTRS{wwpn}==\"${wwpn}\", ATTRS{fcp_lun}==\"${lun}\", SYMLINK+=\"${tgtNode}%n\"" >> ${configFile}
udevadm control --reload
udevadm trigger --sysname-match=sd*
fi
echo "$funcName successfully create the file system node ${xcat_tgtFile}"
##########################################################################
# Handle removing a file system node
# Disk file input parameters:
# action - "removefilesysnode"
# tgtFile - location/name of the target file for the mknod command
##########################################################################
elif [[ $xcat_action == "removefilesysnode" ]]; then
echo "Removing a file system node, target: $xcat_tgtFile"
if [[ ! -n $xcat_tgtFile ]]; then
echo "$funcName (Error) Target file for creating a file system node was not specified"
return
fi
configFile='/etc/udev/rules.d/56-zfcp.rules'
tgtNode=$(echo ${xcat_tgtFile} | sed -e 's/^\/dev\///')
sed -i -e /SYMLINK+=\"${tgtNode}%n\"/d ${configFile}
sed -i -e /SYMLINK+=\"${tgtNode}\"/d ${configFile}
udevadm control --reload
udevadm trigger --sysname-match=sd*
udevadm trigger --sysname-match=dm-*
echo "$funcName successfully remove the file system node ${xcat_tgtFile}"
##########################################################################
# Handle adding a SCSI volume
# Disk file input parameters:
# action - "addScsiVolume"
# fcpAddr - FCP device address
# wwpn - WWPN number
# lun - LUN number
##########################################################################
elif [[ $xcat_action == "addScsiVolume" ]]; then
echo "Adding a SCSI Volume, FCP addr: $xcat_fcpAddr, WWPN: $xcat_wwpn, LUN: $xcat_lun"
# Validate the input
if [[ ! -n $xcat_fcpAddr ]]; then
echo "$funcName (Error) FCP address was not specified"
return
fi
xcat_fcpAddr=`echo $xcat_fcpAddr | tr '[A-Z]' '[a-z]'`
if [[ ! -n $xcat_wwpn ]]; then
echo "$funcName (Error) WWPN was not specified"
return
fi
xcat_wwpn=`echo $xcat_wwpn | tr '[A-Z]' '[a-z]'`
if [[ ! -n $xcat_lun ]]; then
echo "$funcName (Error) LUN was not specified"
return
fi
xcat_lun=`echo $xcat_lun | tr '[A-Z]' '[a-z]'`
decimal_lun=$((16#${xcat_lun:0:4}))
# Online the device
oldIFS=$IFS
IFS=","
fcp_list=($xcat_fcpAddr)
for fcp in ${fcp_list[@]}
do
rc= onlineDevice $fcp
if (( rc != 0 )); then
return
fi
if [[ $os == sles12* ]]; then
out=`cat /boot/zipl/active_devices.txt | grep -i "0.0.$fcp"`
if [[ -z $out ]]; then
/sbin/zfcp_host_configure 0.0.$fcp 1
fi
elif [[ $os == sles11* ]]; then
/sbin/zfcp_host_configure 0.0.$fcp 1
elif [[ $os == ubuntu* ]]; then
/sbin/chzdev zfcp-host $fcp -e
fi
done
multipath=0
out=`echo $xcat_wwpn | grep ","`
if [[ -n "$out" ]]; then
multipath=1
fi
# Start multipathd service
if [[ $multipath == 1 ]]; then
if [[ $os == sles* ]]; then
insserv multipathd
elif [[ $os == rhel6* ]]; then
chkconfig multipathd on
else
systemctl enable multipathd
fi
modprobe dm-multipath
fi
for fcp in ${fcp_list[@]}
do
wwpn_list=($xcat_wwpn)
for wwpn in ${wwpn_list[@]}
do
# Set WWPN and LUN in sysfs
echo 0x$xcat_lun > /sys/bus/ccw/drivers/zfcp/0.0.$fcp/0x$wwpn/unit_add
# Set WWPN and LUN in configuration files
if [[ $os == sles* ]]; then
# SLES: /etc/udev/rules.d/51-zfcp*
/sbin/zfcp_disk_configure 0.0.$fcp $wwpn $xcat_lun 1
# Configure zFCP device to be persistent
touch /etc/udev/rules.d/51-zfcp-0.0.$fcp.rules
# Check if the file already contains the zFCP channel
out=`cat "/etc/udev/rules.d/51-zfcp-0.0.$fcp.rules" | egrep -i "ccw/0.0.$fcp]online"`
if [[ ! $out ]]; then
echo "ACTION==\"add\", SUBSYSTEM==\"ccw\", KERNEL==\"0.0.$fcp\", IMPORT{program}=\"collect 0.0.$fcp %k 0.0.$fcp zfcp\"" \
| tee -a /etc/udev/rules.d/51-zfcp-0.0.$fcp.rules
echo "ACTION==\"add\", SUBSYSTEM==\"drivers\", KERNEL==\"zfcp\", IMPORT{program}=\"collect 0.0.$fcp %k 0.0.$fcp zfcp\"" \
| tee -a /etc/udev/rules.d/51-zfcp-0.0.$fcp.rules
echo "ACTION==\"add\", ENV{COLLECT_0.0.$fcp}==\"0\", ATTR{[ccw/0.0.$fcp]online}=\"1\"" \
| tee -a /etc/udev/rules.d/51-zfcp-0.0.$fcp.rules
fi
echo "ACTION==\"add\", KERNEL==\"rport-*\", ATTR{port_name}==\"0x$wwpn\", SUBSYSTEMS==\"ccw\", KERNELS==\"0.0.$fcp\", ATTR{[ccw/0.0.$fcp]0x$wwpn/unit_add}=\"0x$xcat_lun\"" \
| tee -a /etc/udev/rules.d/51-zfcp-0.0.$fcp.rules
elif [[ $os == rhel* ]]; then
# RHEL: /etc/zfcp.conf
echo "0.0.$fcp 0x$wwpn 0x$xcat_lun" >> /etc/zfcp.conf
echo "add" > /sys/bus/ccw/devices/0.0.$fcp/uevent
elif [[ $os == ubuntu* ]]; then
# Ubuntu: chzdev zfcp-lun 0.0.$device:0x$wwpn:0x$lun -e
/sbin/chzdev zfcp-lun 0.0.$fcp:0x$wwpn:0x$xcat_lun -e
fi
# Settle the file system so when we are done the device is fully available
if [[ $(which udevadm 2> /dev/null) != '' ]]; then
udevadm settle
else
udevsettle
fi
if [[ $os == rhel* || $os == sles* ]]; then
if [[ ! -e "/dev/disk/by-path/ccw-0.0.${fcp}-zfcp-0x${wwpn}:0x${xcat_lun}" ]]; then
# Sometimes the file takes longer to appear. We will wait up to 3 minutes.
maxTime=0
for time in 1 2 2 5 10 10 30 60 60
do
if [[ -e "/dev/disk/by-path/ccw-0.0.${fcp}-zfcp-0x${wwpn}:0x${xcat_lun}" ]]; then
# Leave the loop now that the file exists
break
fi
maxTime=$maxTime+$time
echo "Sleeping for $time seconds to allow /dev/disk/by-path/ccw-0.0.${fcp}-zfcp-0x${wwpn}:0x${xcat_lun} to be created"
sleep $time
done
fi
if [[ ! -e "/dev/disk/by-path/ccw-0.0.${fcp}-zfcp-0x${wwpn}:0x${xcat_lun}" ]]; then
echo "/dev/disk/by-path/ccw-0.0.${fcp}-zfcp-0x${wwpn}:0x${xcat_lun} did not appear in $maxTime seconds, continuing."
fi
elif [[ $os == ubuntu* ]]; then
if [[ ! -e "/dev/disk/by-path/ccw-0.0.${fcp}-fc-0x${wwpn}-lun-${decimal_lun}" ]]; then
# Sometimes the file takes longer to appear. We will wait up to 3 minutes.
maxTime=0
for time in 1 2 2 5 10 10 30 60 60
do
if [[ -e "/dev/disk/by-path/ccw-0.0.${fcp}-fc-0x${wwpn}-lun-${decimal_lun}" ]]; then
# Leave the loop now that the file exists
break
fi
maxTime=$maxTime+$time
echo "Sleeping for $time seconds to allow /dev/disk/by-path/ccw-0.0.${fcp}-fc-0x${wwpn}-lun-${decimal_lun} to be created"
sleep $time
done
fi
if [[ ! -e "/dev/disk/by-path/ccw-0.0.${fcp}-fc-0x${wwpn}-lun-${decimal_lun}" ]]; then
echo "/dev/disk/by-path/ccw-0.0.${fcp}-fc-0x${wwpn}-lun-${decimal_lun} did not appear in $maxTime seconds, continuing."
fi
fi
done
done
IFS=$oldIFS
/sbin/multipath -r
echo "$funcName successfully create the SCSI volume"
##########################################################################
# Handle removing a SCSI volume
# Disk file input parameters:
# action - "removeScsiVolume"
# fcpAddr - FCP device address
# wwpn - WWPN number
# lun - LUN number
##########################################################################
elif [[ $xcat_action == "removeScsiVolume" ]]; then
echo "Removing a SCSI Volume, FCP addr: $xcat_fcpAddr, WWPN: $xcat_wwpn, LUN: $xcat_lun"
# Validate the input
if [[ ! -n $xcat_fcpAddr ]]; then
echo "$funcName (Error) FCP address was not specified"
return
fi
xcat_fcpAddr=`echo $xcat_fcpAddr | tr '[A-Z]' '[a-z]'`
if [[ ! -n $xcat_wwpn ]]; then
echo "$funcName (Error) WWPN was not specified"
return
fi
xcat_wwpn=`echo $xcat_wwpn | tr '[A-Z]' '[a-z]'`
if [[ ! -n $xcat_lun ]]; then
echo "$funcName (Error) LUN was not specified"
return
fi
xcat_lun=`echo $xcat_lun | tr '[A-Z]' '[a-z]'`
oldIFS=$IFS
IFS=","
fcp_list=($xcat_fcpAddr)
for fcp in ${fcp_list[@]}
do
wwpn_list=($xcat_wwpn)
for wwpn in ${wwpn_list[@]}
do
# Delete the SCSI device
scsiDevice=`lszfcp -l 0x$xcat_lun | grep 0x$wwpn | cut -d " " -f2`
if [[ -n $scsiDevice ]]; then
echo 1 > "/sys/bus/scsi/devices/$scsiDevice/delete"
fi
# Delete WWPN and LUN from sysfs
if [[ -e /sys/bus/ccw/drivers/zfcp/0.0.$fcp/0x$wwpn/unit_remove ]]; then
if [[ $(which udevadm 2> /dev/null) != '' ]]; then
udevadm settle
else
udevsettle
fi
echo 0x$xcat_lun > /sys/bus/ccw/drivers/zfcp/0.0.$fcp/0x$wwpn/unit_remove
fi
# Delete WWPN and LUN from configuration files
if [[ $os == sles11* || $os == sles12* ]]; then
# SLES: /etc/udev/rules.d/51-zfcp*
expression="/$xcat_lun/d"
sed --in-place -e $expression /etc/udev/rules.d/51-zfcp-0.0.$fcp.rules
elif [[ $os == rhel* ]]; then
# RHEL: /etc/zfcp.conf
expression="/$xcat_lun/d"
sed --in-place -e $expression /etc/zfcp.conf
elif [[ $os == ubuntu* ]]; then
# Ubuntu: chzdev zfcp-lun 0.0.$device:0x$wwpn:0x$lun -d
/sbin/chzdev zfcp-lun 0.0.$fcp:0x$wwpn:0x$xcat_lun -d
fi
done
done
IFS=$oldIFS
/sbin/multipath -W
/sbin/multipath -r
echo "$funcName successfully remove the SCSI volume"
###########################################################################
# Handle adding a mdisk based ephemeral disk.
# Disk file input parameters:
# action - "addMdisk"
# vaddr - virtual address of the minidisk
# filesys - Filesystem type
# mntdir - The directory that mount the mdisk to
##########################################################################
elif [[ $xcat_action == "addMdisk" ]]; then
echo "Adding a minidisk based ephemeral disk, Vaddr: $xcat_vaddr, Filesystem: $xcat_filesys mountpoint:$xcat_mntdir"
# Validate the input
if [[ ! -n $xcat_vaddr ]]; then
echo "$funcName (Error) Virtual address was not specified"
return
fi
xcat_vaddr=`echo $xcat_vaddr | tr '[A-Z]' '[a-z]'`
# Online the device
rc= onlineDevice $xcat_vaddr
if (( rc != 0 )); then
echo "$funcName (Error) fail to online the disk $xcat_vaddr"
return
fi
# Configure the added dasd to be persistent
echo "Permanently online the ephemeral disk"
if [[ $os == rhel* ]]; then
out=`cat "/etc/dasd.conf" | egrep -i $xcat_vaddr`
if [[ ! $out ]]; then
echo "0.0.$xcat_vaddr" >> /etc/dasd.conf
fi
elif [[ $os == sles* ]]; then
/sbin/dasd_configure 0.0.$xcat_vaddr 1
elif [[ $os == ubuntu16* ]]; then
touch /etc/sysconfig/hardware/config-ccw-0.0.$xcat_vaddr
else
echo "$funcName (Error) failed to permanently online the disk:$xcat_vaddr on os: $os, please check if $os is in the supported distribution list"
return
fi
# Mount the mdisk to the specified mount point
echo "Mounting the ephemeral disk $xcat_vaddr to directory $xcat_mntdir"
if [[ -d $xcat_mntdir ]]; then
rm -rf $xcat_mntdir
fi
mkdir -p $xcat_mntdir
cp /etc/fstab /etc/fstab.bak
out=`cat "/etc/fstab" | egrep -i "ccw-0.0.$xcat_vaddr"`
if [[ $out ]]; then
sed -i '/ccw-0.0.'"$xcat_vaddr"'/d' /etc/fstab
fi
if [[ $os == sles12* ]]; then
echo "/dev/disk/by-path/ccw-0.0.${xcat_vaddr}-part1 $xcat_mntdir $xcat_filesys defaults,nofail 0 0" >> /etc/fstab
else
echo "/dev/disk/by-path/ccw-0.0.${xcat_vaddr}-part1 $xcat_mntdir $xcat_filesys defaults 0 0" >> /etc/fstab
fi
out=`mount -a 2>&1`
if [[ "$out" ]]; then
echo "Fail to mount the disk $xcat_vaddr with reason $out"
mv /etc/fstab.bak /etc/fstab
mount -a
else
echo "The disk $xcat_vaddr has been mounted to $xcat_mntdir in format $xcat_filesys successfully"
fi
fi
return
}
############################################################################
# Main Code Section
############################################################################
# Get Linux version
getOsVersion
setupDisk $@
rm -f setupDisk
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