74 lines
2.2 KiB
Plaintext
74 lines
2.2 KiB
Plaintext
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#!/bin/sh
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#
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# zfcp_disk_configure
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#
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# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
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#
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# Configures a zfcp-attached Logical Unit by calling the IBM-provided chzdev command.
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# Whereas this script used to validate the parameters provided to it,
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# we now rely on chzdev to do that instead. The script is intended only
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# as a "translation layer" to provide backward compatability for older
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# scripts and tools that invoke it.
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#
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# Usage:
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# zfcp_disk_configure <ccwid> <wwpn> <lun> <online>
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#
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# ccwid = x.y.ssss where
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# x is always 0 until IBM creates something that uses that number
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# y is the subchannel set ID (SSID). Most often
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# this is 0, but it could be non-zero
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# ssss is the four digit device address of the subchannel, in
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# hexidecimal, with leading zeros.
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# online = 0 to take the device offline
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# 1 to bring the device online
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#
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# Return values:
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# Return codes are determined by the chzdev command.
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#
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mesg () {
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echo "$@"
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}
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debug_mesg () {
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case "${DEBUG}" in
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yes) mesg "$@" ;;
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*) ;;
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esac
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}
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usage(){
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echo "Usage: ${0} <ccwid> <wwpn> <lun> <online>"
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echo " ccwid = x.y.ssss where"
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echo " x is always 0 until IBM creates something that uses that number"
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echo " y is the subchannel set ID (SSID). Most often"
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echo " this is 0, but it could be non-zero"
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echo " ssss is the four digit device address of the subchannel, in"
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echo " hexidecimal, with leading zeros."
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echo " online = 0 to take the device offline"
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echo " 1 to bring the device online"
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}
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if [ "${DEBUG}" != "yes" ]; then
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DEBUG="no"
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fi
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CCW_CHAN_ID=${1}
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FCP_WWPN="${2}"
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FCP_LUN="${3}"
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ON_OFF=${4}
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# normalise to lower case
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FCP_WWPN=$(echo ${FCP_WWPN} | tr "A-Z" "a-z")
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FCP_LUN=$(echo ${FCP_LUN} | tr "A-Z" "a-z")
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if [ "${ON_OFF}" == 0 ]; then
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debug_mesg "chzdev -d zfcp-lun --no-root-update ${CCW_CHAN_ID}:${FCP_WWPN}:${FCP_LUN}"
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chzdev -d zfcp-lun --no-root-update ${CCW_CHAN_ID}:${FCP_WWPN}:${FCP_LUN}
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elif [ "${ON_OFF}" == 1 ]; then
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debug_mesg "chzdev -e zfcp-lun --no-root-update ${CCW_CHAN_ID}:${FCP_WWPN}:${FCP_LUN}"
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chzdev -e zfcp-lun --no-root-update ${CCW_CHAN_ID}:${FCP_WWPN}:${FCP_LUN}
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else mesg "You must specify a 0 or a 1 for the online/offline attribute."
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usage
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exit 1
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fi
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