mirror of
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5a12e7c134
Wed Aug 26 10:00:38 CDT 2009 Slackware 13.0 x86_64 is released as stable! Thanks to everyone who helped make this release possible -- see the RELEASE_NOTES for the credits. The ISOs are off to the replicator. This time it will be a 6 CD-ROM 32-bit set and a dual-sided 32-bit/64-bit x86/x86_64 DVD. We're taking pre-orders now at store.slackware.com. Please consider picking up a copy to help support the project. Once again, thanks to the entire Slackware community for all the help testing and fixing things and offering suggestions during this development cycle. As always, have fun and enjoy! -P.
558 lines
15 KiB
Bash
558 lines
15 KiB
Bash
#!/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--2008 Kurt Garloff <kurt@garloff.de>, GNU GPL v2 or later
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# (c) 2006--2008 Hannes Reinecke, GNU GPL v2 or later
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# $Id: rescan-scsi-bus.sh,v 1.29 2008/10/29 10:03:04 garloff Exp $
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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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# Return hosts. sysfs must be mounted
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findhosts_26 ()
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{
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hosts=
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if ! ls /sys/class/scsi_host/host* >/dev/null 2>&1; 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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for hostdir in /sys/class/scsi_host/host*; 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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hosts=`echo $hosts | sed 's/ /\n/g' | sort -n`
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}
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# Return hosts. /proc/scsi/HOSTADAPTER/? must exist
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findhosts ()
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{
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hosts=
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for driverdir in /proc/scsi/*; do
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driver=${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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# 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=`printf "%02i" $channel`
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ID=`printf "%02i" $id`
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LUN=`printf "%02i" $lun`
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if [ -d /sys/class/scsi_device ]; then
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SCSIPATH="/sys/class/scsi_device/${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 ${SCSIPATH}/device/type)
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case "$type" in
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0) ITYPE="Direct-Access " ;;
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1) ITYPE="Sequential-Access" ;;
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2) ITYPE="Printer " ;;
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3) ITYPE="Processor " ;;
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4) ITYPE="WORM " ;;
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5) ITYPE="CD-ROM " ;;
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6) ITYPE="Scanner " ;;
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7) ITYPE="Optical Device " ;;
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8) ITYPE="Medium Changer " ;;
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9) ITYPE="Communications " ;;
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10) ITYPE="Unknown " ;;
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11) ITYPE="Unknown " ;;
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12) ITYPE="RAID " ;;
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13) ITYPE="Enclosure " ;;
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14) ITYPE="Direct-Access-RBC" ;;
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*) ITYPE="Unknown " ;;
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esac
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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 $lun
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sgdevice ()
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{
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SGDEV=
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if test -d /sys/class/scsi_device; then
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sgdevice26
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else
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DRV=`grep 'Attached drivers:' /proc/scsi/scsi 2>/dev/null`
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repdevstat=$((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 [ $repdevstat = 0 ]; then
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echo "scsi report-devs 0" >/proc/scsi/scsi
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fi
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fi
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}
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# Test if SCSI device is still responding to commands
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testonline ()
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{
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: testonline
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if test ! -x /usr/bin/sg_turs; then return 0; fi
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sgdevice
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if test -z "$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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# 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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# OK, device online, compare INQUIRY string
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INQ=`sg_inq $sg_len_arg /dev/$SGDEV`
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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}\nLU not available (PQual $IPQUAL)${norm}\n\n\n"
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return 1
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fi
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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: ${bold}\nfrom:${TMPSTR#* } \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 $lun exists
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# Outputs description from /proc/scsi/scsi, returns SCSISTR
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testexist ()
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{
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: testexist
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SCSISTR=
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if procscsiscsi; then
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echo "$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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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 $chan"
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fi
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done
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}
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# Returns the list of existing targets per host
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idlist ()
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{
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local hcil
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local cil
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local il
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local target
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local tmpid
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for dev in /sys/class/scsi_device/${host}:${channel}:* ; do
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hcil=${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 $tmpid ; then
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target=
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fi
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done
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if test -n "$target" ; then
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idsearch="$idsearch $target"
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fi
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done
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}
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# Returns the list of existing LUNs
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getluns ()
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{
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if test ! -x /usr/bin/sg_luns; then return; fi
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sgdevice
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if test -z "$SGDEV"; then return; fi
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sg_luns -d /dev/$SGDEV | sed -n 's/.*lun=\(.*\)/\1/p'
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}
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# Perform scan on a single 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 "Scanning for device $devnr ..."
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printf "${yellow}OLD: $norm"
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testexist
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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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if test $? = 1 -o ! -z "$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}:${lun}/device/delete
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# Try reading, should fail if device is gone
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echo "$channel $id $lun" > /sys/class/scsi_host/host${host}/scan
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else
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echo "scsi remove-single-device $devnr" > /proc/scsi/scsi
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# Try reading, 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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if test $RC = 0 ; then
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if test -e /sys/class/scsi_device/${host}:${channel}:${id}:${lun}/device; then
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echo 1 > /sys/class/scsi_device/${host}:${channel}:${id}:${lun}/device/rescan
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fi
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fi
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printf "\r\x1b[A\x1b[A\x1b[A${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: $norm\r\n\n"
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let rmvd+=1;
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fi
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fi
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if test -z "$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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else
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echo "scsi add-single-device $devnr" > /proc/scsi/scsi
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fi
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testexist
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if test -z "$SCSISTR"; then
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# Device not present
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printf "\r\x1b[A";
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# Optimization: if lun==0, stop here (only if in non-remove mode)
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if test $lun = 0 -a -z "$remove" -a $optscan = 1; then
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break;
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fi
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else
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let found+=1;
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fi
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fi
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}
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# Perform report lun scan
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doreportlun()
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{
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lun=0
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SCSISTR=
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devnr="$host $channel $id $lun"
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echo "Scanning for device $devnr ..."
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printf "${yellow}OLD: $norm"
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testexist
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if test -z "$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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else
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echo "scsi add-single-device $devnr" > /proc/scsi/scsi
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fi
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testexist
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if test -z "$SCSISTR"; then
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# Device not present
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printf "\r\x1b[A";
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lunsearch=
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return
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fi
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fi
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lunsearch=`getluns`
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lunremove=
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# Check existing luns
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for dev in /sys/class/scsi_device/$host\:$channel\:$id\:*; do
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lun=${dev##*:}
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newsearch=
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oldsearch="$lunsearch"
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for tmplun in $lunsearch; do
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if test $tmplun -eq $lun ; then
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# Optimization: don't scan lun 0 again
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if [ $lun -ne 0 ]; then
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dolunscan
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fi
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else
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newsearch="$newsearch $tmplun"
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fi
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done
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if [ "${#oldsearch}" = "${#newsearch}" ] ; then
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# Stale lun
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lunremove="$lunremove $lun"
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fi
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lunsearch="$newsearch"
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done
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# Add new ones and check stale ones
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for lun in $lunsearch $lunremove; do
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dolunscan
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done
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}
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# Perform search (scan $host)
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dosearch ()
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{
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if test -z "$channelsearch" ; then
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chanlist
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fi
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for channel in $channelsearch; do
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if test -z "$idsearch" ; then
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idlist
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fi
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for id in $idsearch; do
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if test -z "$lunsearch"; then
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doreportlun
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else
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for lun in $lunsearch; do
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dolunscan
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done
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fi
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done
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done
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}
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# main
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if test @$1 = @--help -o @$1 = @-h -o @$1 = @-?; then
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echo "Usage: rescan-scsi-bus.sh [options] [host [host ...]]"
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echo "Options:"
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echo " -l activates scanning for LUNs 0-7 [default: 0]"
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echo " -L NUM activates scanning for LUNs 0--NUM [default: 0]"
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echo " -w scan for target device IDs 0 .. 15 [default: 0-7]"
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echo " -c enables scanning of channels 0 1 [default: 0]"
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echo " -r enables removing of devices [default: disabled]"
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echo " -i issue a FibreChannel LIP reset [default: disabled]"
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echo "--remove: same as -r"
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echo "--issue-lip: same as -i"
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echo "--forceremove: Remove and readd every device (DANGEROUS)"
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echo "--nooptscan: don't stop looking for LUNs is 0 is not found"
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echo "--color: use coloured prefixes OLD/NEW/DEL"
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echo "--hosts=LIST: Scan only host(s) in LIST"
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echo "--channels=LIST: Scan only channel(s) in LIST"
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echo "--ids=LIST: Scan only target ID(s) in LIST"
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echo "--luns=LIST: Scan only lun(s) in LIST"
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echo " Host numbers may thus be specified either directly on cmd line (deprecated) or"
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echo " or with the --hosts=LIST parameter (recommended)."
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echo "LIST: A[-B][,C[-D]]... is a comma separated list of single values and ranges"
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echo " (No spaces allowed.)"
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exit 0
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fi
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expandlist ()
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{
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list=$1
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result=""
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first=${list%%,*}
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rest=${list#*,}
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while test ! -z "$first"; do
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beg=${first%%-*};
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if test "$beg" = "$first"; then
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result="$result $beg";
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else
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end=${first#*-}
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result="$result `seq $beg $end`"
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fi
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test "$rest" = "$first" && rest=""
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first=${rest%%,*}
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rest=${rest#*,}
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done
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echo $result
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}
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if test ! -d /sys/class/scsi_host/ -a ! -d /proc/scsi/; then
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echo "Error: SCSI subsystem not active"
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exit 1
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fi
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# Make sure sg is there
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modprobe sg >/dev/null 2>&1
|
|
|
|
sg_version=$(sg_inq -V 2>&1 | cut -d " " -f 3)
|
|
sg_version=${sg_version##0.}
|
|
if [ "$sg_version" -lt 70 ] ; then
|
|
sg_len_arg="-36"
|
|
else
|
|
sg_len_arg="--len=36"
|
|
fi
|
|
|
|
# defaults
|
|
unsetcolor
|
|
lunsearch=""
|
|
idsearch=`seq 0 7`
|
|
channelsearch="0"
|
|
remove=
|
|
forceremove=
|
|
optscan=1
|
|
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 $2`; shift ;;
|
|
w) idsearch=`seq 0 15` ;;
|
|
c) channelsearch="0 1" ;;
|
|
r) remove=1 ;;
|
|
i) lipreset=1 ;;
|
|
-remove) remove=1 ;;
|
|
-forceremove) remove=1; forceremove=1 ;;
|
|
-hosts=*) arg=${opt#-hosts=}; hosts=`expandlist $arg` ;;
|
|
-channels=*) arg=${opt#-channels=};channelsearch=`expandlist $arg` ;;
|
|
-ids=*) arg=${opt#-ids=}; idsearch=`expandlist $arg` ;;
|
|
-luns=*) arg=${opt#-luns=}; lunsearch=`expandlist $arg` ;;
|
|
-color) setcolor ;;
|
|
-nooptscan) optscan=0 ;;
|
|
-issue-lip) lipreset=1 ;;
|
|
*) echo "Unknown option -$opt !" ;;
|
|
esac
|
|
shift
|
|
opt="$1"
|
|
done
|
|
|
|
# Hosts given ?
|
|
if test "@$1" != "@"; then
|
|
hosts=$*;
|
|
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;
|
|
echo "- - -" > /sys/class/scsi_host/host$host/scan 2> /dev/null;
|
|
fi
|
|
channelsearch=""
|
|
idsearch=""
|
|
fi
|
|
[ -n "$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 " $lunsearch
|
|
else
|
|
echo ", all LUNs"
|
|
fi
|
|
dosearch;
|
|
done
|
|
echo "$found new device(s) found. "
|
|
echo "$rmvd device(s) removed. "
|
|
|