- Remove rescan-scsi-bus.sh (has been moved into sg3_utils package)
OBS-URL: https://build.opensuse.org/package/show/Base:System/sg3_utils?expand=0&rev=20
This commit is contained in:
parent
870ea6254e
commit
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@ -1,755 +0,0 @@
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#!/bin/bash
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# Skript to rescan SCSI bus, using the
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# scsi add-single-device mechanism
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# (c) 1998--2010 Kurt Garloff <kurt@garloff.de>, GNU GPL v2 or v3
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# (c) 2006--2008 Hannes Reinecke, GNU GPL v2 or later
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# $Id: rescan-scsi-bus.sh,v 1.56 2012/01/14 22:23:53 garloff Exp $
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SCAN_WILD_CARD=4294967295
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setcolor ()
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{
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red="\e[0;31m"
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green="\e[0;32m"
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yellow="\e[0;33m"
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bold="\e[0;1m"
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norm="\e[0;0m"
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}
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unsetcolor ()
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{
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red=""; green=""
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yellow=""; norm=""
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}
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# Output some text and return cursor to previous position
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# (only works for simple strings)
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# Stores length of string in LN and returns it
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print_and_scroll_back ()
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{
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STRG="$1"
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LN=${#STRG}
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BK=""
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declare -i cntr=0
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while test $cntr -lt $LN; do BK="$BK\e[D"; let cntr+=1; done
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echo -en "$STRG$BK"
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return $LN
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}
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# Overwrite a text of length $1 (fallback to $LN) with whitespace
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white_out ()
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{
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BK=""; WH=""
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if test -n "$1"; then LN=$1; fi
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declare -i cntr=0
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while test $cntr -lt $LN; do BK="$BK\e[D"; WH="$WH "; let cntr+=1; done
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echo -en "$WH$BK"
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}
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# Return hosts. sysfs must be mounted
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findhosts_26 ()
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{
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hosts=`find /sys/class/scsi_host/host* -maxdepth 4 -type d -o -type l 2> /dev/null | awk -F'/' '{print $5}' | sed -e 's~host~~' | sort -nu`
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scsi_host_data=`echo "$hosts" | sed -e 's~^~/sys/class/scsi_host/host~'`
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for hostdir in $scsi_host_data; do
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hostno=${hostdir#/sys/class/scsi_host/host}
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if [ -f $hostdir/isp_name ] ; then
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hostname="qla2xxx"
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elif [ -f $hostdir/lpfc_drvr_version ] ; then
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hostname="lpfc"
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else
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hostname=`cat $hostdir/proc_name`
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fi
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#hosts="$hosts $hostno"
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echo "Host adapter $hostno ($hostname) found."
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done
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if [ -z "$hosts" ] ; then
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echo "No SCSI host adapters found in sysfs"
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exit 1;
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fi
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# Not necessary just use double quotes around variable to preserve new lines
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#hosts=`echo $hosts | tr ' ' '\n'`
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}
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# Return hosts. /proc/scsi/HOSTADAPTER/? must exist
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findhosts ()
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{
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hosts=
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for driverdir in /proc/scsi/*; do
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driver=${driverdir#/proc/scsi/}
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if test $driver = scsi -o $driver = sg -o $driver = dummy -o $driver = device_info; then continue; fi
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for hostdir in $driverdir/*; do
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name=${hostdir#/proc/scsi/*/}
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if test $name = add_map -o $name = map -o $name = mod_parm; then continue; fi
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num=$name
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driverinfo=$driver
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if test -r $hostdir/status; then
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num=$(printf '%d\n' `sed -n 's/SCSI host number://p' $hostdir/status`)
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driverinfo="$driver:$name"
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fi
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hosts="$hosts $num"
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echo "Host adapter $num ($driverinfo) found."
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done
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done
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}
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printtype ()
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{
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local type=$1
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case "$type" in
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0) echo "Direct-Access " ;;
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1) echo "Sequential-Access" ;;
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2) echo "Printer " ;;
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3) echo "Processor " ;;
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4) echo "WORM " ;;
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5) echo "CD-ROM " ;;
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6) echo "Scanner " ;;
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7) echo "Optical Device " ;;
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8) echo "Medium Changer " ;;
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9) echo "Communications " ;;
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10) echo "Unknown " ;;
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11) echo "Unknown " ;;
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12) echo "RAID " ;;
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13) echo "Enclosure " ;;
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14) echo "Direct-Access-RBC" ;;
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*) echo "Unknown " ;;
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esac
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}
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print02i()
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{
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if [ "$1" = "*" ] ; then
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echo "00"
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else
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printf "%02i" "$1"
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fi
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}
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# Get /proc/scsi/scsi info for device $host:$channel:$id:$lun
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# Optional parameter: Number of lines after first (default = 2),
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# result in SCSISTR, return code 1 means empty.
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procscsiscsi ()
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{
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if test -z "$1"; then LN=2; else LN=$1; fi
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CHANNEL=`print02i "$channel"`
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ID=`print02i "$id"`
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LUN=`print02i "$lun"`
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if [ -d /sys/class/scsi_device ]; then
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SCSIPATH="/sys/class/scsi_device/${host}:${channel}:${id}:${lun}"
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if [ -d "$SCSIPATH" ] ; then
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SCSISTR="Host: scsi${host} Channel: $CHANNEL Id: $ID Lun: $LUN"
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if [ "$LN" -gt 0 ] ; then
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IVEND=$(cat ${SCSIPATH}/device/vendor)
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IPROD=$(cat ${SCSIPATH}/device/model)
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IPREV=$(cat ${SCSIPATH}/device/rev)
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SCSIDEV=$(printf ' Vendor: %-08s Model: %-16s Rev: %-4s' "$IVEND" "$IPROD" "$IPREV")
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SCSISTR="$SCSISTR
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$SCSIDEV"
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fi
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if [ "$LN" -gt 1 ] ; then
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ILVL=$(cat ${SCSIPATH}/device/scsi_level)
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type=$(cat ${SCSIPATH}/device/type)
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ITYPE=$(printtype $type)
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SCSITMP=$(printf ' Type: %-16s ANSI SCSI revision: %02d' "$ITYPE" "$((ILVL - 1))")
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SCSISTR="$SCSISTR
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$SCSITMP"
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fi
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else
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return 1
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fi
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else
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grepstr="scsi$host Channel: $CHANNEL Id: $ID Lun: $LUN"
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SCSISTR=`cat /proc/scsi/scsi | grep -A$LN -e"$grepstr"`
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fi
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if test -z "$SCSISTR"; then return 1; else return 0; fi
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}
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# Find sg device with 2.6 sysfs support
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sgdevice26 ()
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{
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if test -e /sys/class/scsi_device/$host\:$channel\:$id\:$lun/device/generic; then
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SGDEV=`readlink /sys/class/scsi_device/$host\:$channel\:$id\:$lun/device/generic`
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SGDEV=`basename $SGDEV`
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else
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for SGDEV in /sys/class/scsi_generic/sg*; do
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DEV=`readlink $SGDEV/device`
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if test "${DEV##*/}" = "$host:$channel:$id:$lun"; then
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SGDEV=`basename $SGDEV`; return
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fi
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done
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SGDEV=""
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fi
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}
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# Find sg device with 2.4 report-devs extensions
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sgdevice24 ()
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{
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if procscsiscsi 3; then
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SGDEV=`echo "$SCSISTR" | grep 'Attached drivers:' | sed 's/^ *Attached drivers: \(sg[0-9]*\).*/\1/'`
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fi
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}
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# Find sg device that belongs to SCSI device $host $channel $id $lun
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# and return in SGDEV
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sgdevice ()
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{
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SGDEV=
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if test -d /sys/class/scsi_device; then
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sgdevice26
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else
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DRV=`grep 'Attached drivers:' /proc/scsi/scsi 2>/dev/null`
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repdevstat=$((1-$?))
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if [ $repdevstat = 0 ]; then
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echo "scsi report-devs 1" >/proc/scsi/scsi
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DRV=`grep 'Attached drivers:' /proc/scsi/scsi 2>/dev/null`
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if [ $? = 1 ]; then return; fi
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fi
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if ! `echo $DRV | grep 'drivers: sg' >/dev/null`; then
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modprobe sg
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fi
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sgdevice24
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if [ $repdevstat = 0 ]; then
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echo "scsi report-devs 0" >/proc/scsi/scsi
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fi
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fi
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}
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# Test if SCSI device is still responding to commands
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testonline ()
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{
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: testonline
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RC=0
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if test ! -x /usr/bin/sg_turs; then return 0; fi
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sgdevice
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if test -z "$SGDEV"; then return 0; fi
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sg_turs /dev/$SGDEV >/dev/null 2>&1
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RC=$?
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# Handle in progress of becoming ready and unit attention -- wait at max 11s
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declare -i ctr=0
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if test $RC = 2 -o $RC = 6; then
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RMB=`sg_inq /dev/$SGDEV | grep 'RMB=' | sed 's/^.*RMB=\(.\).*$/\1/'`
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print_and_scroll_back "$host:$channel:$id:$lun $SGDEV ($RMB) "
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fi
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while test $RC = 2 -o $RC = 6 && test $ctr -le 8; do
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if test $RC = 2 -a "$RMB" != "1"; then echo -n "."; let $LN+=1; sleep 1
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else usleep 20000; fi
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let ctr+=1
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sg_turs /dev/$SGDEV >/dev/null 2>&1
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RC=$?
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done
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if test $ctr != 0; then white_out; fi
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# echo -e "\e[A\e[A\e[A${yellow}Test existence of $SGDEV = $RC ${norm} \n\n\n"
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if test $RC = 1; then return $RC; fi
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# Reset RC (might be !=0 for passive paths)
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RC=0
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# OK, device online, compare INQUIRY string
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INQ=`sg_inq $sg_len_arg /dev/$SGDEV 2>/dev/null`
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IVEND=`echo "$INQ" | grep 'Vendor identification:' | sed 's/^[^:]*: \(.*\)$/\1/'`
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IPROD=`echo "$INQ" | grep 'Product identification:' | sed 's/^[^:]*: \(.*\)$/\1/'`
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IPREV=`echo "$INQ" | grep 'Product revision level:' | sed 's/^[^:]*: \(.*\)$/\1/'`
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STR=`printf " Vendor: %-08s Model: %-16s Rev: %-4s" "$IVEND" "$IPROD" "$IPREV"`
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IPTYPE=`echo "$INQ" | sed -n 's/.* Device_type=\([0-9]*\) .*/\1/p'`
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IPQUAL=`echo "$INQ" | sed -n 's/ *PQual=\([0-9]*\) Device.*/\1/p'`
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if [ "$IPQUAL" != 0 ] ; then
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echo -e "\e[A\e[A\e[A\e[A${red}$SGDEV changed: ${bold}LU not available (PQual $IPQUAL)${norm} \n\n\n"
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return 2
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fi
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TYPE=$(printtype $IPTYPE)
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procscsiscsi
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TMPSTR=`echo "$SCSISTR" | grep 'Vendor:'`
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if [ "$TMPSTR" != "$STR" ]; then
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echo -e "\e[A\e[A\e[A\e[A${red}$SGDEV changed: ${bold}\nfrom:${SCSISTR#* } \nto: $STR ${norm} \n\n\n"
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return 1
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fi
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TMPSTR=`echo "$SCSISTR" | sed -n 's/.*Type: *\(.*\) *ANSI.*/\1/p'`
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if [ $TMPSTR != $TYPE ] ; then
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echo -e "\e[A\e[A\e[A\e[A${red}$SGDEV changed: ${bold}\nfrom:${TMPSTR} \nto: $TYPE ${norm} \n\n\n"
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return 1
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fi
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return $RC
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}
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# Test if SCSI device $host $channen $id $lun exists
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# Outputs description from /proc/scsi/scsi (unless arg passed)
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# Returns SCSISTR (empty if no dev)
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testexist ()
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{
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: testexist
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SCSISTR=
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if procscsiscsi && test -z "$1"; then
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echo "$SCSISTR" | head -n1
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echo "$SCSISTR" | tail -n2 | pr -o4 -l1
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fi
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}
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# Returns the list of existing channels per host
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chanlist ()
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{
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local hcil
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local cil
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local chan
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local tmpchan
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for dev in /sys/class/scsi_device/${host}:* ; do
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[ -d $dev ] || continue;
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hcil=${dev##*/}
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cil=${hcil#*:}
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chan=${cil%%:*}
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for tmpchan in $channelsearch ; do
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if test "$chan" -eq $tmpchan ; then
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chan=
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fi
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done
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if test -n "$chan" ; then
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channelsearch="$channelsearch $chan"
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fi
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done
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if test -z "$channelsearch"; then channelsearch="0"; fi
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}
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# Returns the list of existing targets per host
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idlist ()
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{
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local hcil
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local cil
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local il
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local target
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local tmpid
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for dev in /sys/class/scsi_device/${host}:${channel}:* ; do
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[ -d $dev ] || continue;
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hcil=${dev##*/}
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cil=${hcil#*:}
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il=${cil#*:}
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target=${il%%:*}
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for tmpid in $idsearch ; do
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if test "$target" -eq $tmpid ; then
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target=
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break
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fi
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done
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if test -n "$target" ; then
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idsearch="$idsearch $target"
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fi
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done
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}
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# Returns the list of existing LUNs from device $host $channel $id $lun
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# and returns list to stdout
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getluns()
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{
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sgdevice
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if test -z "$SGDEV"; then return 1; fi
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if test ! -x /usr/bin/sg_luns; then echo 0; return 1; fi
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LLUN=`sg_luns /dev/$SGDEV 2>/dev/null | sed -n 's/ \(.*\)/\1/p'`
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if test $? != 0; then echo 0; return 1; fi
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#echo "$LLUN" | sed -n 's/.*lun=\(.*\)/\1/p'
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for lun in $LLUN ; do
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# Swap LUN number
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l0=$(printf '%u' 0x$lun)
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l1=$(( ($l0 >> 48) & 0xffff ))
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l2=$(( ($l0 >> 32) & 0xffff ))
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l3=$(( ($l0 >> 16) & 0xffff ))
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l4=$(( $l0 & 0xffff ))
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l0=$(( ( ( ($l4 * 0xffff) + $l3 ) * 0xffff + $l2 ) * 0xffff + $l1 ))
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printf "%u\n" $l0
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done
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return 0
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}
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# Wait for udev to settle (create device nodes etc.)
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udevadm_settle()
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{
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if test -x /sbin/udevadm; then
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print_and_scroll_back " Calling udevadm settle (can take a while) "
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/sbin/udevadm settle
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white_out
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elif test -x /sbin/udevsettle; then
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print_and_scroll_back " Calling udevsettle (can take a while) "
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/sbin/udevsettle
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white_out
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else
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usleep 20000
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fi
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}
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# Perform scan on a single lun $host $channel $id $lun
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dolunscan()
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{
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SCSISTR=
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devnr="$host $channel $id $lun"
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echo -e " Scanning for device $devnr ... "
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printf "${yellow}OLD: $norm"
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testexist
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# Special case: lun 0 just got added (for reportlunscan),
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# so make sure we correctly treat it as new
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if test "$lun" = "0" -a "$1"; then
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SCSISTR=""
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printf "\r\e[A\e[A\e[A"
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fi
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: f $remove s $SCSISTR
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if test "$remove" -a "$SCSISTR"; then
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# Device exists: Test whether it's still online
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# (testonline returns 1 if it's gone or has changed)
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testonline
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RC=$?
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if test $RC != 0 -o ! -z "$forceremove"; then
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echo -en "\r\e[A\e[A\e[A${red}REM: "
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echo "$SCSISTR" | head -n1
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echo -e "${norm}\e[B\e[B"
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if test -e /sys/class/scsi_device/${host}:${channel}:${id}:${lun}/device; then
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echo 1 > /sys/class/scsi_device/${host}:${channel}:${id}:${lun}/device/delete
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# FIXME: Can we skip udevadm settle for removal?
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#udevadm_settle
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usleep 20000
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else
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echo "scsi remove-single-device $devnr" > /proc/scsi/scsi
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if test $RC -eq 1 -o $lun -eq 0 ; then
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# Try readding, should fail if device is gone
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echo "scsi add-single-device $devnr" > /proc/scsi/scsi
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fi
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fi
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fi
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if test $RC = 0 -o "$forcerescan" ; then
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if test -e /sys/class/scsi_device/${host}:${channel}:${id}:${lun}/device; then
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echo 1 > /sys/class/scsi_device/${host}:${channel}:${id}:${lun}/device/rescan
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udevadm_settle
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fi
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fi
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printf "\r\e[A\e[A\e[A${yellow}OLD: $norm"
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testexist
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if test -z "$SCSISTR"; then
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printf "\r${red}DEL: $norm\r\n\n"
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let rmvd+=1;
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return 1
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fi
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fi
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if test -z "$SCSISTR"; then
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# Device does not exist, try to add
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printf "\r${green}NEW: $norm"
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if test -e /sys/class/scsi_host/host${host}/scan; then
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echo "$channel $id $lun" > /sys/class/scsi_host/host${host}/scan 2> /dev/null
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udevadm_settle
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else
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echo "scsi add-single-device $devnr" > /proc/scsi/scsi
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fi
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testexist
|
||||
if test -z "$SCSISTR"; then
|
||||
# Device not present
|
||||
printf "\r\e[A";
|
||||
# Optimization: if lun==0, stop here (only if in non-remove mode)
|
||||
if test $lun = 0 -a -z "$remove" -a $optscan = 1; then
|
||||
break;
|
||||
fi
|
||||
else
|
||||
let found+=1;
|
||||
fi
|
||||
fi
|
||||
}
|
||||
|
||||
# Perform report lun scan on $host $channel $id using REPORT_LUNS
|
||||
doreportlun()
|
||||
{
|
||||
lun=0
|
||||
SCSISTR=
|
||||
devnr="$host $channel $id $lun"
|
||||
echo -en " Scanning for device $devnr ...\r"
|
||||
lun0added=
|
||||
#printf "${yellow}OLD: $norm"
|
||||
# Phase one: If LUN0 does not exist, try to add
|
||||
testexist -q
|
||||
if test -z "$SCSISTR"; then
|
||||
# Device does not exist, try to add
|
||||
#printf "\r${green}NEW: $norm"
|
||||
if test -e /sys/class/scsi_host/host${host}/scan; then
|
||||
echo "$channel $id $lun" > /sys/class/scsi_host/host${host}/scan 2> /dev/null
|
||||
udevadm_settle
|
||||
else
|
||||
echo "scsi add-single-device $devnr" > /proc/scsi/scsi
|
||||
fi
|
||||
testexist -q
|
||||
if test -n "$SCSISTR"; then
|
||||
lun0added=1
|
||||
#testonline
|
||||
else
|
||||
# Device not present
|
||||
# return
|
||||
# Find alternative LUN to send getluns to
|
||||
for dev in /sys/class/scsi_device/${host}:${channel}:${id}:*; do
|
||||
[ -d "$dev" ] || continue
|
||||
lun=${dev##*:}
|
||||
break
|
||||
done
|
||||
fi
|
||||
fi
|
||||
targetluns=`getluns`
|
||||
REPLUNSTAT=$?
|
||||
lunremove=
|
||||
#echo "getluns reports " $targetluns
|
||||
olddev=`find /sys/class/scsi_device/ -name $host:$channel:$id:* 2>/dev/null`
|
||||
oldluns=`echo "$olddev" | awk -F'/' '{print $5}' | awk -F':' '{print $4}'`
|
||||
oldtargets="$targetluns"
|
||||
# OK -- if we don't have a LUN to send a REPORT_LUNS to, we could
|
||||
# fall back to wildcard scanning. Same thing if the device does not
|
||||
# support REPORT_LUNS
|
||||
# TODO: We might be better off to ALWAYS use wildcard scanning if
|
||||
# it works
|
||||
if test "$REPLUNSTAT" = "1"; then
|
||||
if test -e /sys/class/scsi_host/host${host}/scan; then
|
||||
echo "$channel $id -" > /sys/class/scsi_host/host${host}/scan 2> /dev/null
|
||||
udevadm_settle
|
||||
else
|
||||
echo "scsi add-single-device $host $channel $id $SCAN_WILD_CARD" > /proc/scsi/scsi
|
||||
fi
|
||||
targetluns=`find /sys/class/scsi_device/ -name $host:$channel:$id:* 2>/dev/null | awk -F'/' '{print $5}' | awk -F':' '{print $4}' | sort -n`
|
||||
let found+=`echo "$targetluns" | wc -l`
|
||||
let found-=`echo "$olddev" | wc -l`
|
||||
fi
|
||||
if test -z "$targetluns"; then targetluns="$oldtargets"; fi
|
||||
# Check existing luns
|
||||
for dev in $olddev; do
|
||||
[ -d "$dev" ] || continue
|
||||
lun=${dev##*:}
|
||||
newsearch=
|
||||
inlist=
|
||||
# OK, is existing $lun (still) in reported list
|
||||
for tmplun in $targetluns; do
|
||||
if test $tmplun -eq $lun ; then
|
||||
inlist=1
|
||||
dolunscan $lun0added
|
||||
else
|
||||
newsearch="$newsearch $tmplun"
|
||||
fi
|
||||
done
|
||||
# OK, we have now done a lunscan on $lun and
|
||||
# $newsearch is the old $targetluns without $lun
|
||||
if [ -z "$inlist" ]; then
|
||||
# Stale lun
|
||||
lunremove="$lunremove $lun"
|
||||
fi
|
||||
# $lun removed from $lunsearch (echo for whitespace cleanup)
|
||||
targetluns=`echo $newsearch`
|
||||
done
|
||||
# Add new ones and check stale ones
|
||||
for lun in $targetluns $lunremove; do
|
||||
dolunscan $lun0added
|
||||
done
|
||||
}
|
||||
|
||||
# Perform search (scan $host)
|
||||
dosearch ()
|
||||
{
|
||||
if test -z "$channelsearch" ; then
|
||||
chanlist
|
||||
fi
|
||||
for channel in $channelsearch; do
|
||||
if test -z "$idsearch" ; then
|
||||
idlist
|
||||
fi
|
||||
for id in $idsearch; do
|
||||
if test -z "$lunsearch" ; then
|
||||
doreportlun
|
||||
else
|
||||
for lun in $lunsearch; do
|
||||
dolunscan
|
||||
done
|
||||
fi
|
||||
done
|
||||
done
|
||||
}
|
||||
|
||||
expandlist ()
|
||||
{
|
||||
list=$1
|
||||
result=""
|
||||
first=${list%%,*}
|
||||
rest=${list#*,}
|
||||
while test ! -z "$first"; do
|
||||
beg=${first%%-*};
|
||||
if test "$beg" = "$first"; then
|
||||
result="$result $beg";
|
||||
else
|
||||
end=${first#*-}
|
||||
result="$result `seq $beg $end`"
|
||||
fi
|
||||
test "$rest" = "$first" && rest=""
|
||||
first=${rest%%,*}
|
||||
rest=${rest#*,}
|
||||
done
|
||||
echo $result
|
||||
}
|
||||
|
||||
# main
|
||||
if test @$1 = @--help -o @$1 = @-h -o @$1 = @-?; then
|
||||
echo "Usage: rescan-scsi-bus.sh [options] [host [host ...]]"
|
||||
echo "Options:"
|
||||
echo " -l activates scanning for LUNs 0--7 [default: 0]"
|
||||
echo " -L NUM activates scanning for LUNs 0--NUM [default: 0]"
|
||||
echo " -w scan for target device IDs 0--15 [default: 0--7]"
|
||||
echo " -c enables scanning of channels 0 1 [default: 0 / all detected ones]"
|
||||
echo " -r enables removing of devices [default: disabled]"
|
||||
echo " -i issue a FibreChannel LIP reset [default: disabled]"
|
||||
echo "--remove: same as -r"
|
||||
echo "--issue-lip: same as -i"
|
||||
echo "--forcerescan: Rescan existing devices"
|
||||
echo "--forceremove: Remove and readd every device (DANGEROUS)"
|
||||
echo "--nooptscan: don't stop looking for LUNs is 0 is not found"
|
||||
echo "--color: use coloured prefixes OLD/NEW/DEL"
|
||||
echo "--hosts=LIST: Scan only host(s) in LIST"
|
||||
echo "--channels=LIST: Scan only channel(s) in LIST"
|
||||
echo "--ids=LIST: Scan only target ID(s) in LIST"
|
||||
echo "--luns=LIST: Scan only lun(s) in LIST"
|
||||
echo "--sync/nosync: Issue a sync / no sync [default: sync if remove]"
|
||||
echo "--attachpq3: Tell kernel to attach sg to LUN 0 that reports PQ=3"
|
||||
echo "--reportlun2: Tell kernel to try REPORT_LUN even on SCSI2 devices"
|
||||
echo "--largelun: Tell kernel to support LUNs > 7 even on SCSI2 devs"
|
||||
echo "--sparselun: Tell kernel to support sparse LUN numbering"
|
||||
echo " Host numbers may thus be specified either directly on cmd line (deprecated) or"
|
||||
echo " or with the --hosts=LIST parameter (recommended)."
|
||||
echo "LIST: A[-B][,C[-D]]... is a comma separated list of single values and ranges"
|
||||
echo " (No spaces allowed.)"
|
||||
exit 0
|
||||
fi
|
||||
|
||||
if test ! -d /sys/class/scsi_host/ -a ! -d /proc/scsi/; then
|
||||
echo "Error: SCSI subsystem not active"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# Make sure sg is there
|
||||
modprobe sg >/dev/null 2>&1
|
||||
|
||||
if test -x /usr/bin/sg_inq; then
|
||||
sg_version=$(sg_inq -V 2>&1 | cut -d " " -f 3)
|
||||
sg_version=${sg_version##0.}
|
||||
#echo "\"$sg_version\""
|
||||
if [ -z "$sg_version" -o "$sg_version" -lt 70 ] ; then
|
||||
sg_len_arg="-36"
|
||||
else
|
||||
sg_len_arg="--len=36"
|
||||
fi
|
||||
else
|
||||
echo "WARN: /usr/bin/sg_inq not present -- please install sg3_utils"
|
||||
echo " or rescan-scsi-bus.sh might not fully work."
|
||||
fi
|
||||
|
||||
# defaults
|
||||
unsetcolor
|
||||
lunsearch=
|
||||
opt_idsearch=`seq 0 7`
|
||||
opt_channelsearch=
|
||||
remove=
|
||||
forceremove=
|
||||
optscan=1
|
||||
sync=1
|
||||
declare -i scan_flags=0
|
||||
if test -d /sys/class/scsi_host; then
|
||||
findhosts_26
|
||||
else
|
||||
findhosts
|
||||
fi
|
||||
|
||||
# Scan options
|
||||
opt="$1"
|
||||
while test ! -z "$opt" -a -z "${opt##-*}"; do
|
||||
opt=${opt#-}
|
||||
case "$opt" in
|
||||
l) lunsearch=`seq 0 7` ;;
|
||||
L) lunsearch=`seq 0 $2`; shift ;;
|
||||
w) opt_idsearch=`seq 0 15` ;;
|
||||
c) opt_channelsearch="0 1" ;;
|
||||
r) remove=1 ;;
|
||||
i) lipreset=1 ;;
|
||||
-remove) remove=1 ;;
|
||||
-forcerescan) remove=1; forcerescan=1 ;;
|
||||
-forceremove) remove=1; forceremove=1 ;;
|
||||
-hosts=*) arg=${opt#-hosts=}; hosts=`expandlist $arg` ;;
|
||||
-channels=*) arg=${opt#-channels=};opt_channelsearch=`expandlist $arg` ;;
|
||||
-ids=*) arg=${opt#-ids=}; opt_idsearch=`expandlist $arg` ;;
|
||||
-luns=*) arg=${opt#-luns=}; lunsearch=`expandlist $arg` ;;
|
||||
-color) setcolor ;;
|
||||
-nooptscan) optscan=0 ;;
|
||||
-issue-lip) lipreset=1 ;;
|
||||
-sync) sync=2 ;;
|
||||
-nosync) sync=0 ;;
|
||||
-attachpq3) scan_flags=$(($scan_flags|0x1000000)) ;;
|
||||
-reportlun2) scan_flags=$(($scan_flags|0x20000)) ;;
|
||||
-largelun) scan_flags=$(($scan_flags|0x200)) ;;
|
||||
-sparselun) scan_flags=$((scan_flags|0x40)) ;;
|
||||
*) echo "Unknown option -$opt !" ;;
|
||||
esac
|
||||
shift
|
||||
opt="$1"
|
||||
done
|
||||
|
||||
# Hosts given ?
|
||||
if test "@$1" != "@"; then
|
||||
hosts=$*
|
||||
fi
|
||||
|
||||
if [ -d /sys/class/scsi_host -a ! -w /sys/class/scsi_host ]; then
|
||||
echo "You need to run scsi-rescan-bus.sh as root"
|
||||
exit 2
|
||||
fi
|
||||
if test "$sync" = 1 -a "$remove" = 1; then sync=2; fi
|
||||
if test "$sync" = 2; then echo "Syncing file systems"; sync; fi
|
||||
if test -w /sys/module/scsi_mod/parameters/default_dev_flags -a $scan_flags != 0; then
|
||||
OLD_SCANFLAGS=`cat /sys/module/scsi_mod/parameters/default_dev_flags`
|
||||
NEW_SCANFLAGS=$(($OLD_SCANFLAGS|$scan_flags))
|
||||
if test "$OLD_SCANFLAGS" != "$NEW_SCANFLAGS"; then
|
||||
echo -n "Temporarily setting kernel scanning flags from "
|
||||
printf "0x%08x to 0x%08x\n" $OLD_SCANFLAGS $NEW_SCANFLAGS
|
||||
echo $NEW_SCANFLAGS > /sys/module/scsi_mod/parameters/default_dev_flags
|
||||
else
|
||||
unset OLD_SCANFLAGS
|
||||
fi
|
||||
fi
|
||||
echo "Scanning SCSI subsystem for new devices"
|
||||
test -z "$remove" || echo " and remove devices that have disappeared"
|
||||
declare -i found=0
|
||||
declare -i rmvd=0
|
||||
for host in $hosts; do
|
||||
echo -n "Scanning host $host "
|
||||
if test -e /sys/class/fc_host/host$host ; then
|
||||
# It's pointless to do a target scan on FC
|
||||
if test -n "$lipreset" ; then
|
||||
echo 1 > /sys/class/fc_host/host$host/issue_lip 2> /dev/null;
|
||||
udevadm_settle
|
||||
fi
|
||||
# We used to always trigger a rescan for FC to update channels and targets
|
||||
# Commented out -- as discussed with Hannes we should rely
|
||||
# on the main loop doing the scan, no need to do it here.
|
||||
#echo "- - -" > /sys/class/scsi_host/host$host/scan 2> /dev/null;
|
||||
#udevadm_settle
|
||||
channelsearch=
|
||||
idsearch=
|
||||
else
|
||||
channelsearch=$opt_channelsearch
|
||||
idsearch=$opt_idsearch
|
||||
fi
|
||||
[ -n "$channelsearch" ] && echo -n "channels $channelsearch "
|
||||
echo -n "for "
|
||||
if [ -n "$idsearch" ] ; then
|
||||
echo -n " SCSI target IDs " $idsearch
|
||||
else
|
||||
echo -n " all SCSI target IDs"
|
||||
fi
|
||||
if [ -n "$lunsearch" ] ; then
|
||||
echo ", LUNs " $lunsearch
|
||||
else
|
||||
echo ", all LUNs"
|
||||
fi
|
||||
dosearch
|
||||
done
|
||||
if test -n "$OLD_SCANFLAGS"; then
|
||||
echo $OLD_SCANFLAGS > /sys/module/scsi_mod/parameters/default_dev_flags
|
||||
fi
|
||||
echo "$found new device(s) found. "
|
||||
echo "$rmvd device(s) removed. "
|
||||
|
||||
# Local Variables:
|
||||
# sh-basic-offset: 2
|
||||
# End:
|
||||
|
Loading…
Reference in New Issue
Block a user