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a/sysvinit-scripts-2.1-noarch-40.txz: Rebuilt. Drop old /sbin/rescan-scsi-bus as the most recent version is already present in the sg3_utils package as /usr/bin/rescan-scsi-bus.sh. d/meson-0.57.1-x86_64-1.txz: Upgraded. l/mozilla-nss-3.62-x86_64-1.txz: Upgraded. l/sg3_utils-1.45-x86_64-4.txz: Rebuilt. Make a symlink /sbin/rescan-scsi-bus -> /usr/bin/rescan-scsi-bus.sh in case anyone depends on the old path / name from the sysvinit-scripts package. n/ipset-7.11-x86_64-1.txz: Upgraded. n/krb5-1.19.1-x86_64-1.txz: Upgraded. n/s-nail-14.9.21-x86_64-4.txz: Rebuilt. If there's no mail, exit. Thanks to ardya. testing/packages/linux-5.11/kernel-generic-5.11.0-x86_64-1.txz: Added. testing/packages/linux-5.11/kernel-headers-5.11.0-x86-1.txz: Added. testing/packages/linux-5.11/kernel-huge-5.11.0-x86_64-1.txz: Added. testing/packages/linux-5.11/kernel-modules-5.11.0-x86_64-1.txz: Added. testing/packages/linux-5.11/kernel-source-5.11.0-noarch-1.txz: Added.
1395 lines
38 KiB
Bash
Executable file
1395 lines
38 KiB
Bash
Executable file
#!/bin/bash
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# Script to rescan SCSI bus, using the 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--2018 Hannes Reinecke, GNU GPL v2 or later
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# $Id: rescan-scsi-bus.sh,v 1.57 2012/03/31 14:08:48 garloff Exp $
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VERSION="20180615"
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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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echo_debug()
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{
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if [ "$debug" -eq 1 ] ; then
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echo "$1"
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fi
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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 [ $cntr -lt "$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 $LN with whitespace
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white_out ()
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{
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BK=""; WH=""
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declare -i cntr=0
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while [ $cntr -lt "$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=
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for hostdir in /sys/class/scsi_host/host* ; do
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[ -e "$hostdir" ] || continue
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hostno=${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_debug "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 [ "$driver" = scsi ] || [ "$driver" = sg ] || [ "$driver" = dummy ] || [ "$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 [ "$name" = add_map ] || [ "$name" = map ] || [ "$name" = mod_parm ] ; then continue; fi
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num=$name
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driverinfo=$driver
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if [ -r "$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 [ -z "$1" ] ; then
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LN=2
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else
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LN=$1
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fi
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CHANNEL=$(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: %-17s 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: $LUN"
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SCSISTR=$(grep -A "$LN" -e "$grepstr" /proc/scsi/scsi)
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fi
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if [ -z "$SCSISTR" ] ; then
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return 1
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else
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return 0
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fi
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}
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# Find sg device with 2.6 sysfs support
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sgdevice26 ()
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{
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local gendev
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gendev=/sys/class/scsi_device/${host}:${channel}:${id}:${lun}/device/generic
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if [ -e "$gendev" ] ; then
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SGDEV=$(basename "$(readlink "$gendev")")
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else
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for SGDEV in /sys/class/scsi_generic/sg*; do
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DEV=$(readlink "$SGDEV/device")
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if [ "${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 $lun
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# and return in SGDEV
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sgdevice ()
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{
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SGDEV=
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if [ -d /sys/class/scsi_device ] ; then
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sgdevice26
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else
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DRV=$(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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[ $? -eq 1 ] && return
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fi
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if ! echo "$DRV" | grep -q 'drivers: sg'; 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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# Whether or not the RMB (removable) bit has been set in the INQUIRY response.
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# Uses ${host}, ${channel}, ${id} and ${lun}. Assumes that sg_device() has
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# already been called. How to test this function: copy/paste this function
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# in a shell and run
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# (cd /sys/class/scsi_device && for d in *; do set ${d//:/ }; echo -n "$d $(</sys/class/scsi_device/${d}/device/block/*/removable) <> "; SGDEV=bsg/$d host=$1 channel=$2 id=$3 lun=$4 is_removable; done)
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is_removable ()
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{
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local b p
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p=/sys/class/scsi_device/${host}:${channel}:${id}:${lun}/device/inquiry
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# Extract the second byte of the INQUIRY response and check bit 7 (mask 0x80).
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b=$(hexdump -n1 -e '/1 "%02X"' "$p" 2>/dev/null)
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if [ -n "$b" ]; then
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echo $(((0x$b & 0x80) != 0))
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else
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sg_inq /dev/$SGDEV 2>/dev/null | sed -n 's/^.*RMB=\([0-9]*\).*$/\1/p'
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fi
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}
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# Test if SCSI device is still responding to commands
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# Return values:
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# 0 device is present
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# 1 device has changed
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# 2 device has been removed
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testonline ()
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{
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local ctr RC RMB
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: testonline
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ctr=0
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RC=0
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# Set default values
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IPTYPE=31
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IPQUAL=3
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[ ! -x /usr/bin/sg_turs ] && return 0
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sgdevice
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[ -z "$SGDEV" ] && return 0
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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
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while [ $RC = 2 -o $RC = 6 ] && [ $ctr -le 30 ] ; do
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if [ $RC = 2 ] && [ "$RMB" != "1" ] ; then
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echo -n "."
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let LN+=1
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sleep 1
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else
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sleep 0.02
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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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# Check for removable device; TEST UNIT READY obviously will
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# fail for a removable device with no medium
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RMB=$(is_removable)
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print_and_scroll_back "$host:$channel:$id:$lun $SGDEV ($RMB) "
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[ $RC = 2 ] && [ "$RMB" = "1" ] && break
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done
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if [ $ctr != 0 ] ; then
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white_out
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fi
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# echo -e "\e[A\e[A\e[A${yellow}Test existence of $SGDEV = $RC ${norm} \n\n\n"
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[ $RC = 1 ] && return $RC
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# Reset RC (might be !=0 for passive paths)
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RC=0
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# OK, device online, compare INQUIRY string
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INQ=$(sg_inq "$sg_len_arg" /dev/$SGDEV 2>/dev/null)
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if [ -z "$INQ" ] ; then
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echo -e "\e[A\e[A\e[A\e[A${red}$SGDEV changed: ${bold}INQUIRY failed${norm} \n\n\n"
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return 2
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fi
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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 [ "$IPQUAL" != 0 ] ; then
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[ -z "$IPQUAL" ] && IPQUAL=3
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[ -z "$IPTYPE" ] && IPTYPE=31
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echo -e "\e[A\e[A\e[A\e[A${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 $IPTYPE)
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if ! procscsiscsi ; then
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echo -e "\e[A\e[A\e[A\e[A${red}$SGDEV removed.\n\n\n"
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return 2
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fi
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TMPSTR=$(echo "$SCSISTR" | grep 'Vendor:')
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if [ "$ignore_rev" -eq 0 ] ; then
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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 ${norm} \n\n\n"
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return 1
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fi
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else
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# Ignore disk revision change
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local old_str_no_rev=
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local new_str_no_rev=
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old_str_no_rev=${TMPSTR%Rev:*}
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new_str_no_rev=${STR%Rev:*}
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if [ "$old_str_no_rev" != "$new_str_no_rev" ]; then
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echo -e "\e[A\e[A\e[A\e[A${red}$SGDEV changed: ${bold}\nfrom:${SCSISTR#* } \nto: $STR ${norm} \n\n\n"
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return 1
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fi
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fi
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TMPSTR=$(echo "$SCSISTR" | sed -n 's/.*Type: *\(.*\) *ANSI.*/\1/p' | sed 's/ *$//g')
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if [ "$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 $channel $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 && [ -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 $channelsearch ; do
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if [ "$chan" -eq "$tmpchan" ] ; then
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chan=
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fi
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done
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if [ -n "$chan" ] ; then
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channelsearch="$channelsearch $chan"
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fi
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done
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if [ -z "$channelsearch" ] ; then
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channelsearch="0"
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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 tmpid
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local newid
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local oldid
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oldlist=$(find /sys/class/scsi_device -name "${host}:${channel}:*" -printf "%f\n")
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# Rescan LUN 0 to check if we found new targets
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echo "${channel} - -" > "/sys/class/scsi_host/host${host}/scan"
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newlist=$(find /sys/class/scsi_device -name "${host}:${channel}:*" -printf "%f\n")
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for newid in $newlist ; do
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oldid=$newid
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for tmpid in $oldlist ; do
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if [ "$newid" = "$tmpid" ] ; then
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oldid=
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break
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fi
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done
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if [ -n "$oldid" ] ; then
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if [ -d /sys/class/scsi_device/$oldid ] ; then
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hcil=${oldid}
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printf "\r${green}NEW: %s" "$norm"
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testexist
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if [ "$SCSISTR" ] ; then
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incrfound "$hcil"
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fi
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fi
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fi
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done
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idsearch=$(find /sys/bus/scsi/devices -name "target${host}:${channel}:*" -printf "%f\n" | cut -f 3 -d :)
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}
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# Returns the list of existing LUNs from device $host $channel $id $lun
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# and returns list to stdout
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getluns()
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{
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sgdevice
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[ -z "$SGDEV" ] && return 1
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if [ ! -x /usr/bin/sg_luns ] ; then
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echo 0
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return 1
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fi
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LLUN=$(sg_luns /dev/$SGDEV 2>/dev/null | sed -n 's/ \(.*\)/\1/p')
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# Added -z $LLUN condition because $? gets the RC from sed, not sg_luns
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if [ $? -ne 0 ] || [ -z "$LLUN" ] ; then
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echo 0
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return 1
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fi
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for lun in $LLUN ; do
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# Swap LUN number
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l0=0x$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()
|
|
{
|
|
local tmo=60
|
|
if [ -x /sbin/udevadm ] ; then
|
|
print_and_scroll_back " Calling udevadm settle (can take a while) "
|
|
# Loop for up to 60 seconds if sd devices still are settling..
|
|
# This allows us to continue if udev events are stuck on multipaths in recovery mode
|
|
while [ $tmo -gt 0 ] ; do
|
|
if ! /sbin/udevadm settle --timeout=1 | egrep -q sd[a-z]+ ; then
|
|
break;
|
|
fi
|
|
let tmo=$tmo-1
|
|
done
|
|
white_out
|
|
elif [ -x /sbin/udevsettle ] ; then
|
|
print_and_scroll_back " Calling udevsettle (can take a while) "
|
|
/sbin/udevsettle
|
|
white_out
|
|
else
|
|
sleep 0.02
|
|
fi
|
|
}
|
|
|
|
# Perform scan on a single lun $host $channel $id $lun
|
|
dolunscan()
|
|
{
|
|
local remappedlun0=
|
|
local devpath
|
|
SCSISTR=
|
|
devnr="$host $channel $id $lun"
|
|
echo -e " Scanning for device $devnr ... "
|
|
printf "${yellow}OLD: %s" "$norm"
|
|
testexist
|
|
# Device exists: Test whether it's still online
|
|
# (testonline returns 2 if it's gone and 1 if it has changed)
|
|
devpath="/sys/class/scsi_device/${host}:${channel}:${id}:${lun}/device"
|
|
if [ "$SCSISTR" ] ; then
|
|
testonline
|
|
RC=$?
|
|
# Well known lun transition case. Only for Direct-Access devs (type 0)
|
|
# If block directory exists && and PQUAL != 0, we unmapped lun0 and just have a well-known lun
|
|
# If block directory doesn't exist && PQUAL == 0, we mapped a real lun0
|
|
if [ "$lun" -eq 0 ] && [ $IPTYPE -eq 0 ] ; then
|
|
if [ $RC = 2 ] ; then
|
|
if [ -e "$devpath" ] ; then
|
|
if [ -d "$devpath/block" ] ; then
|
|
remappedlun0=2 # Transition from real lun 0 to well-known
|
|
else
|
|
RC=0 # Set this so the system leaves the existing well known lun alone. This is a lun 0 with no block directory
|
|
fi
|
|
fi
|
|
elif [ $RC = 0 ] && [ $IPTYPE -eq 0 ] ; then
|
|
if [ -e "$devpath" ] ; then
|
|
if [ ! -d "$devpath/block" ] ; then
|
|
remappedlun0=1 # Transition from well-known to real lun 0
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
# Special case: lun 0 just got added (for reportlunscan),
|
|
# so make sure we correctly treat it as new
|
|
if [ "$lun" = "0" ] && [ "$1" = "1" ] && [ -z "$remappedlun0" ] ; then
|
|
SCSISTR=""
|
|
printf "\r\e[A\e[A\e[A"
|
|
fi
|
|
|
|
: f "$remove" s $SCSISTR
|
|
if [ "$remove" ] && [ "$SCSISTR" -o "$remappedlun0" = "1" ] ; then
|
|
if [ $RC != 0 ] || [ ! -z "$forceremove" ] || [ -n "$remappedlun0" ] ; then
|
|
if [ "$remappedlun0" != "1" ] ; then
|
|
echo -en "\r\e[A\e[A\e[A${red}REM: "
|
|
echo "$SCSISTR" | head -n1
|
|
echo -e "${norm}\e[B\e[B"
|
|
fi
|
|
if [ -e "$devpath" ] ; then
|
|
# have to preemptively do this so we can figure out the mpath device
|
|
# Don't do this if we're deleting a well known lun to replace it
|
|
if [ "$remappedlun0" != "1" ] ; then
|
|
incrrmvd "$host:$channel:$id:$lun"
|
|
fi
|
|
echo 1 > "$devpath/delete"
|
|
sleep 0.02
|
|
else
|
|
echo "scsi remove-single-device $devnr" > /proc/scsi/scsi
|
|
if [ $RC -eq 1 ] || [ "$lun" -eq 0 ] ; then
|
|
# Try readding, should fail if device is gone
|
|
echo "scsi add-single-device $devnr" > /proc/scsi/scsi
|
|
fi
|
|
fi
|
|
fi
|
|
if [ $RC = 0 ] || [ "$forcerescan" ] ; then
|
|
if [ -e "$devpath" ] ; then
|
|
echo 1 > "$devpath/rescan"
|
|
fi
|
|
fi
|
|
printf "\r\e[A\e[A\e[A${yellow}OLD: %s" "$norm"
|
|
testexist
|
|
if [ -z "$SCSISTR" ] && [ $RC != 1 ] && [ "$remappedlun0" != "1" ] ; then
|
|
printf "\r${red}DEL: %s\r\n\n" "$norm"
|
|
# In the event we're replacing with a well known node, we need to let it continue, to create the replacement node
|
|
[ "$remappedlun0" != "2" ] && return 2
|
|
fi
|
|
fi
|
|
if [ -z "$SCSISTR" ] || [ -n "$remappedlun0" ] ; then
|
|
if [ "$remappedlun0" != "2" ] ; then
|
|
# Device does not exist, try to add
|
|
printf "\r${green}NEW: %s" "$norm"
|
|
fi
|
|
if [ -e "/sys/class/scsi_host/host${host}/scan" ] ; then
|
|
echo "$channel $id $lun" > "/sys/class/scsi_host/host${host}/scan" 2> /dev/null
|
|
else
|
|
echo "scsi add-single-device $devnr" > /proc/scsi/scsi
|
|
fi
|
|
testexist
|
|
if [ -z "$SCSISTR" ] ; then
|
|
# Device not present
|
|
printf "\r\e[A";
|
|
# Optimization: if lun==0, stop here (only if in non-remove mode)
|
|
if [ "$lun" = 0 ] && [ -z "$remove" ] && [ "$optscan" = 1 ] ; then
|
|
return 1;
|
|
fi
|
|
else
|
|
if [ "$remappedlun0" != "2" ] ; then
|
|
incrfound "$host:$channel:$id:$lun"
|
|
fi
|
|
fi
|
|
fi
|
|
return 0;
|
|
}
|
|
|
|
# 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: %s" "$norm"
|
|
# Phase one: If LUN0 does not exist, try to add
|
|
testexist -q
|
|
if [ -z "$SCSISTR" ] ; then
|
|
# Device does not exist, try to add
|
|
#printf "\r${green}NEW: %s" "$norm"
|
|
if [ -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 $devnr" > /proc/scsi/scsi
|
|
fi
|
|
testexist -q
|
|
if [ -n "$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:$id:*" 2>/dev/null | sort -t: -k4 -n)
|
|
oldtargets="$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 [ "$REPLUNSTAT" = "1" ] ; then
|
|
if [ -e "/sys/class/scsi_host/host${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:$id:*" -printf "%f\n" | cut -d : -f 4)
|
|
let found+=$(echo "$targetluns" | wc -l)
|
|
let found-=$(echo "$olddev" | wc -l)
|
|
fi
|
|
[ -z "$targetluns" ] && targetluns="$oldtargets"
|
|
# 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 $targetluns; do
|
|
if [ "$tmplun" = "$lun" ] ; then
|
|
inlist=1
|
|
dolunscan $lun0added
|
|
[ $? -eq 1 ] && break
|
|
else
|
|
newsearch="$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 $lunsearch
|
|
targetluns=${newsearch# }
|
|
done
|
|
# Add new ones and check stale ones
|
|
for lun in $targetluns $lunremove; do
|
|
dolunscan $lun0added
|
|
[ $? -eq 1 ] && break
|
|
done
|
|
}
|
|
|
|
# Perform search (scan $host)
|
|
dosearch ()
|
|
{
|
|
if [ -z "$channelsearch" ] ; then
|
|
chanlist
|
|
fi
|
|
for channel in $channelsearch; do
|
|
if [ -z "$idsearch" ] ; then
|
|
if [ -z "$lunsearch" ] ; then
|
|
idlist
|
|
else
|
|
idsearch=$(find /sys/bus/scsi/devices -name "target${host}:${channel}:*" -printf "%f\n" | cut -f 3 -d :)
|
|
fi
|
|
fi
|
|
for id in $idsearch; do
|
|
if [ -z "$lunsearch" ] ; then
|
|
doreportlun
|
|
else
|
|
for lun in $lunsearch; do
|
|
dolunscan
|
|
[ $? -eq 1 ] && break
|
|
done
|
|
fi
|
|
done
|
|
done
|
|
}
|
|
|
|
expandlist ()
|
|
{
|
|
list=$1
|
|
result=""
|
|
first=${list%%,*}
|
|
rest=${list#*,}
|
|
while [ ! -z "$first" ] ; do
|
|
beg=${first%%-*};
|
|
if [ "$beg" = "$first" ] ; then
|
|
result="$result $beg";
|
|
else
|
|
end=${first#*-}
|
|
result="$result $(seq $beg $end)"
|
|
fi
|
|
[ "$rest" = "$first" ] && rest=""
|
|
first=${rest%%,*}
|
|
rest=${rest#*,}
|
|
done
|
|
echo "$result"
|
|
}
|
|
|
|
searchexisting()
|
|
{
|
|
local tmpch;
|
|
local tmpid
|
|
local match=0
|
|
local targets=
|
|
|
|
targets=$(find /sys/bus/scsi/devices -name "target${host}:*" -printf "%f\n" | cut -d : -f 2-3)
|
|
# Nothing came back on this host, so we should skip it
|
|
[ -z "$targets" ] && return
|
|
|
|
local target=;
|
|
for target in $targets ; do
|
|
channel=${target%:*}
|
|
id=${target#*:}
|
|
if [ -n "$channelsearch" ] ; then
|
|
for tmpch in $channelsearch ; do
|
|
[ $tmpch -eq "$channel" ] && match=1
|
|
done
|
|
else
|
|
match=1
|
|
fi
|
|
|
|
[ $match -eq 0 ] && continue
|
|
match=0
|
|
|
|
if [ "$filter_ids" -eq 1 ] ; then
|
|
for tmpid in $idsearch ; do
|
|
if [ "$tmpid" = "$id" ] ; then
|
|
match=1
|
|
fi
|
|
done
|
|
else
|
|
match=1
|
|
fi
|
|
|
|
[ $match -eq 0 ] && continue
|
|
|
|
if [ -z "$lunsearch" ] ; then
|
|
doreportlun
|
|
else
|
|
for lun in $lunsearch ; do
|
|
dolunscan
|
|
[ $? -eq 1 ] && break
|
|
done
|
|
fi
|
|
done
|
|
}
|
|
|
|
# Go through all of the existing devices and figure out any that have been remapped
|
|
findremapped()
|
|
{
|
|
local hctl=;
|
|
local devs=
|
|
local sddev=
|
|
local id_serial=
|
|
local id_serial_old=
|
|
local remapped=
|
|
mpaths=""
|
|
local tmpfile=
|
|
|
|
tmpfile=$(mktemp /tmp/rescan-scsi-bus.XXXXXXXX 2> /dev/null)
|
|
if [ -z "$tmpfile" ] ; then
|
|
tmpfile="/tmp/rescan-scsi-bus.$$"
|
|
rm -f $tmpfile
|
|
fi
|
|
|
|
# Get all of the ID_SERIAL attributes, after finding their sd node
|
|
devs=$(ls /sys/class/scsi_device/)
|
|
for hctl in $devs ; do
|
|
if [ -d "/sys/class/scsi_device/$hctl/device/block" ] ; then
|
|
sddev=$(ls "/sys/class/scsi_device/$hctl/device/block")
|
|
id_serial_old=$(udevadm info -q all -n "$sddev" | grep "ID_SERIAL=" | cut -d"=" -f2)
|
|
[ -z "$id_serial_old" ] && id_serial_old="none"
|
|
echo "$hctl $sddev $id_serial_old" >> $tmpfile
|
|
fi
|
|
done
|
|
|
|
# Trigger udev to update the info
|
|
echo -n "Triggering udev to update device information... "
|
|
/sbin/udevadm trigger
|
|
udevadm_settle 2>&1 /dev/null
|
|
echo "Done"
|
|
|
|
# See what changed and reload the respective multipath device if applicable
|
|
while read -r hctl sddev id_serial_old ; do
|
|
remapped=0
|
|
id_serial=$(udevadm info -q all -n "$sddev" | grep "ID_SERIAL=" | cut -d"=" -f2)
|
|
[ -z "$id_serial" ] && id_serial="none"
|
|
if [ "$id_serial_old" != "$id_serial" ] ; then
|
|
remapped=1
|
|
fi
|
|
# If udev events updated the disks already, but the multipath device isn't update
|
|
# check for old devices to make sure we found remapped luns
|
|
if [ -n "$mp_enable" ] && [ $remapped -eq 0 ]; then
|
|
findmultipath "$sddev" $id_serial
|
|
if [ $? -eq 1 ] ; then
|
|
remapped=1
|
|
fi
|
|
fi
|
|
|
|
# if uuid is 1, it's unmapped, so we don't want to treat it as a remap
|
|
# if remapped flag is 0, just skip the rest of the logic
|
|
if [ "$id_serial" = "1" ] || [ $remapped -eq 0 ] ; then
|
|
continue
|
|
fi
|
|
printf "${yellow}REMAPPED: %s" "$norm"
|
|
host=$(echo "$hctl" | cut -d":" -f1)
|
|
channel=$(echo "$hctl" | cut -d":" -f2)
|
|
id=$(echo "$hctl" | cut -d":" -f3)
|
|
lun=$(echo "$hctl" | cut -d":" -f4)
|
|
procscsiscsi
|
|
echo "$SCSISTR"
|
|
incrchgd "$hctl"
|
|
done < $tmpfile
|
|
rm -f $tmpfile
|
|
|
|
if [ -n "$mp_enable" ] && [ -n "$mpaths" ] ; then
|
|
echo "Updating multipath device mappings"
|
|
flushmpaths
|
|
$MULTIPATH | grep "create:" 2> /dev/null
|
|
fi
|
|
}
|
|
|
|
incrfound()
|
|
{
|
|
local hctl="$1"
|
|
if [ -n "$hctl" ] ; then
|
|
let found+=1
|
|
FOUNDDEVS="$FOUNDDEVS\t[$hctl]\n"
|
|
else
|
|
return
|
|
fi
|
|
}
|
|
|
|
incrchgd()
|
|
{
|
|
local hctl="$1"
|
|
if [ -n "$hctl" ] ; then
|
|
if ! echo "$CHGDEVS" | grep -q "\[$hctl\]"; then
|
|
let updated+=1
|
|
CHGDEVS="$CHGDEVS\t[$hctl]\n"
|
|
fi
|
|
else
|
|
return
|
|
fi
|
|
|
|
if [ -n "$mp_enable" ] ; then
|
|
local sdev
|
|
|
|
sdev=$(findsddev "$hctl")
|
|
if [ -n "$sdev" ] ; then
|
|
findmultipath "$sdev"
|
|
fi
|
|
fi
|
|
}
|
|
|
|
incrrmvd()
|
|
{
|
|
local hctl="$1"
|
|
if [ -n "$hctl" ] ; then
|
|
let rmvd+=1;
|
|
RMVDDEVS="$RMVDDEVS\t[$hctl]\n"
|
|
else
|
|
return
|
|
fi
|
|
|
|
if [ -n "$mp_enable" ] ; then
|
|
local sdev
|
|
|
|
sdev=$(findsddev "$hctl")
|
|
if [ -n "$sdev" ] ; then
|
|
findmultipath "$sdev"
|
|
fi
|
|
fi
|
|
}
|
|
|
|
findsddev()
|
|
{
|
|
local hctl="$1"
|
|
local sddev=
|
|
local blkpath
|
|
|
|
blkpath="/sys/class/scsi_device/$hctl/device/block"
|
|
if [ -e "$blkpath" ] ; then
|
|
sddev=$(ls "$blkpath")
|
|
echo "$sddev"
|
|
fi
|
|
}
|
|
|
|
addmpathtolist()
|
|
{
|
|
local mp="$1"
|
|
local mp2=
|
|
|
|
for mp2 in $mpaths ; do
|
|
# The multipath device is already in the list
|
|
if [ "$mp2" = "$mp" ] ; then
|
|
return
|
|
fi
|
|
done
|
|
mpaths="$mpaths $mp"
|
|
}
|
|
|
|
findmultipath()
|
|
{
|
|
local dev="$1"
|
|
local find_mismatch="$2"
|
|
local mp=
|
|
local mp2=
|
|
local found_dup=0
|
|
local maj_min=
|
|
|
|
# Need a sdev, and executable multipath and dmsetup command here
|
|
if [ -z "$dev" ] || [ ! -x "$DMSETUP" ] || [ ! -x "$MULTIPATH" ] ; then
|
|
return 1
|
|
fi
|
|
|
|
maj_min=$(cat "/sys/block/$dev/dev")
|
|
for mp in $($DMSETUP ls --target=multipath | cut -f 1) ; do
|
|
[ "$mp" = "No" ] && break;
|
|
if "$DMSETUP" status "$mp" | grep -q " $maj_min "; then
|
|
# With two arguments, look up current uuid from sysfs
|
|
# if it doesn't match what was passed, this multipath
|
|
# device is not updated, so this is a remapped LUN
|
|
if [ -n "$find_mismatch" ] ; then
|
|
mp2=$($MULTIPATH -l "$mp" | egrep -o "dm-[0-9]+")
|
|
mp2=$(cut -f2 -d- "/sys/block/$mp2/dm/uuid")
|
|
if [ "$find_mismatch" != "$mp2" ] ; then
|
|
addmpathtolist "$mp"
|
|
found_dup=1
|
|
fi
|
|
continue
|
|
fi
|
|
# Normal mode: Find the first multipath with the sdev
|
|
# and add it to the list
|
|
addmpathtolist "$mp"
|
|
return
|
|
fi
|
|
done
|
|
|
|
# Return 1 to signal that a duplicate was found to the calling function
|
|
if [ $found_dup -eq 1 ] ; then
|
|
return 1
|
|
else
|
|
return 0
|
|
fi
|
|
}
|
|
|
|
reloadmpaths()
|
|
{
|
|
local mpath
|
|
if [ ! -x "$MULTIPATH" ] ; then
|
|
echo "no -x multipath"
|
|
return
|
|
fi
|
|
|
|
# Pass 1 as the argument to reload all mpaths
|
|
if [ "$1" = "1" ] ; then
|
|
echo "Reloading all multipath devices"
|
|
$MULTIPATH -r > /dev/null 2>&1
|
|
return
|
|
fi
|
|
|
|
# Reload the multipath devices
|
|
for mpath in $mpaths ; do
|
|
echo -n "Reloading multipath device $mpath... "
|
|
if $MULTIPATH -r "$mpath" > /dev/null 2>&1 ; then
|
|
echo "Done"
|
|
else
|
|
echo "Fail"
|
|
fi
|
|
done
|
|
}
|
|
|
|
resizempaths()
|
|
{
|
|
local mpath
|
|
|
|
for mpath in $mpaths ; do
|
|
echo -n "Resizing multipath map $mpath ..."
|
|
multipathd -k"resize map $mpath"
|
|
let updated+=1
|
|
done
|
|
}
|
|
|
|
flushmpaths()
|
|
{
|
|
local mpath
|
|
local remove=""
|
|
local i
|
|
local flush_retries=5
|
|
|
|
if [ -n "$1" ] ; then
|
|
for mpath in $($DMSETUP ls --target=multipath | cut -f 1) ; do
|
|
[ "$mpath" = "No" ] && break
|
|
num=$($DMSETUP status "$mpath" | awk 'BEGIN{RS=" ";active=0}/[0-9]+:[0-9]+/{dev=1}/A/{if (dev == 1) active++; dev=0} END{ print active }')
|
|
if [ "$num" -eq 0 ] ; then
|
|
remove="$remove $mpath"
|
|
fi
|
|
done
|
|
else
|
|
remove="$mpaths"
|
|
fi
|
|
|
|
for mpath in $remove ; do
|
|
i=0
|
|
echo -n "Flushing multipath device $mpath... "
|
|
while [ $i -lt $flush_retries ] ; do
|
|
$DMSETUP message "$mpath" 0 fail_if_no_path > /dev/null 2>&1
|
|
if $MULTIPATH -f "$mpath" > /dev/null 2>&1 ; then
|
|
echo "Done ($i retries)"
|
|
break
|
|
elif [ $i -eq $flush_retries ] ; then
|
|
echo "Fail"
|
|
fi
|
|
sleep 0.02
|
|
let i=$i+1
|
|
done
|
|
done
|
|
}
|
|
|
|
|
|
# Find resized luns
|
|
findresized()
|
|
{
|
|
local devs=
|
|
local size=
|
|
local new_size=
|
|
local sysfs_path=
|
|
local sddev=
|
|
local i=
|
|
local m=
|
|
local mpathsize=
|
|
declare -a mpathsizes
|
|
|
|
if [ -z "$lunsearch" ] ; then
|
|
devs=$(ls /sys/class/scsi_device/)
|
|
else
|
|
for lun in $lunsearch ; do
|
|
devs="$devs $(cd /sys/class/scsi_device/ && ls -d *:${lun})"
|
|
done
|
|
fi
|
|
|
|
for hctl in $devs ; do
|
|
sysfs_path="/sys/class/scsi_device/$hctl/device"
|
|
if [ -d "$sysfs_path/block" ] ; then
|
|
sddev=$(ls "$sysfs_path/block")
|
|
size=$(cat "$sysfs_path/block/$sddev/size")
|
|
|
|
echo 1 > "$sysfs_path/rescan"
|
|
new_size=$(cat "$sysfs_path/block/$sddev/size")
|
|
|
|
if [ "$size" != "$new_size" ] && [ "$size" != "0" ] && [ "$new_size" != "0" ] ; then
|
|
printf "${yellow}RESIZED: %s" "$norm"
|
|
host=$(echo "$hctl" | cut -d":" -f1)
|
|
channel=$(echo "$hctl" | cut -d":" -f2)
|
|
id=$(echo "$hctl" | cut -d":" -f3)
|
|
lun=$(echo "$hctl" | cut -d":" -f4)
|
|
|
|
procscsiscsi
|
|
echo "$SCSISTR"
|
|
incrchgd "$hctl"
|
|
fi
|
|
fi
|
|
done
|
|
|
|
if [ -n "$mp_enable" ] && [ -n "$mpaths" ] ; then
|
|
i=0
|
|
for m in $mpaths ; do
|
|
mpathsizes[$i]="$($MULTIPATH -l "$m" | egrep -o [0-9]+.[0-9]+[KMGT])"
|
|
let i=$i+1
|
|
done
|
|
resizempaths
|
|
i=0
|
|
for m in $mpaths ; do
|
|
mpathsize="$($MULTIPATH -l "$m" | egrep -o [0-9\.]+[KMGT])"
|
|
echo "$m ${mpathsizes[$i]} => $mpathsize"
|
|
let i=$i+1
|
|
done
|
|
fi
|
|
}
|
|
|
|
FOUNDDEVS=""
|
|
CHGDEVS=""
|
|
RMVDDEVS=""
|
|
|
|
# main
|
|
if [ "@$1" = @--help ] || [ "@$1" = @-h ] || [ "@$1" = "@-?" ] ; then
|
|
echo "Usage: rescan-scsi-bus.sh [options] [host [host ...]]"
|
|
echo "Options:"
|
|
echo " -a scan all targets, not just currently existing [default: disabled]"
|
|
echo " -c enables scanning of channels 0 1 [default: 0 / all detected ones]"
|
|
echo " -d enable debug [default: 0]"
|
|
echo " -f flush failed multipath devices [default: disabled]"
|
|
echo " -h help: print this usage message then exit"
|
|
echo " -i issue a FibreChannel LIP reset [default: disabled]"
|
|
echo " -I SECS issue a FibreChannel LIP reset and wait for SECS seconds [default: disabled]"
|
|
echo " -l activates scanning for LUNs 0--7 [default: 0]"
|
|
echo " -L NUM activates scanning for LUNs 0--NUM [default: 0]"
|
|
echo " -m update multipath devices [default: disabled]"
|
|
echo " -r enables removing of devices [default: disabled]"
|
|
echo " -s look for resized disks and reload associated multipath devices, if applicable"
|
|
echo " -u look for existing disks that have been remapped"
|
|
echo " -V print version date then exit"
|
|
echo " -w scan for target device IDs 0--15 [default: 0--7]"
|
|
echo "--alltargets: same as -a"
|
|
echo "--attachpq3: Tell kernel to attach sg to LUN 0 that reports PQ=3"
|
|
echo "--channels=LIST: Scan only channel(s) in LIST"
|
|
echo "--color: use coloured prefixes OLD/NEW/DEL"
|
|
echo "--flush: same as -f"
|
|
echo "--forceremove: Remove stale devices (DANGEROUS)"
|
|
echo "--forcerescan: Remove and readd existing devices (DANGEROUS)"
|
|
echo "--help: print this usage message then exit"
|
|
echo "--hosts=LIST: Scan only host(s) in LIST"
|
|
echo "--ids=LIST: Scan only target ID(s) in LIST"
|
|
echo "--ignore-rev: Ignore the revision change"
|
|
echo "--issue-lip: same as -i"
|
|
echo "--issue-lip-wait=SECS: same as -I"
|
|
echo "--largelun: Tell kernel to support LUNs > 7 even on SCSI2 devs"
|
|
echo "--luns=LIST: Scan only lun(s) in LIST"
|
|
echo "--multipath: same as -m"
|
|
echo "--nooptscan: don't stop looking for LUNs if 0 is not found"
|
|
echo "--remove: same as -r"
|
|
echo "--reportlun2: Tell kernel to try REPORT_LUN even on SCSI2 devices"
|
|
echo "--resize: same as -s"
|
|
echo "--sparselun: Tell kernel to support sparse LUN numbering"
|
|
echo "--sync/nosync: Issue a sync / no sync [default: sync if remove]"
|
|
echo "--update: same as -u"
|
|
echo "--version: same as -V"
|
|
echo "--wide: same as -w"
|
|
echo ""
|
|
echo "Host numbers may thus be specified either directly on cmd line (deprecated)"
|
|
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 [ "@$1" = @--version ] || [ "@$1" = @-V ] ; then
|
|
echo ${VERSION}
|
|
exit 0
|
|
fi
|
|
|
|
if [ ! -d /sys/class/scsi_host/ ] && [ ! -d /proc/scsi/ ] ; then
|
|
echo "Error: SCSI subsystem not active"
|
|
exit 1
|
|
fi
|
|
|
|
# Make sure sg is there
|
|
modprobe sg >/dev/null 2>&1
|
|
|
|
if [ -x /usr/bin/sg_inq ] ; then
|
|
sg_version=$(sg_inq -V 2>&1 | cut -d " " -f 3)
|
|
if [ -n "$sg_version" ] ; then
|
|
sg_ver_maj=${sg_version:0:1}
|
|
sg_version=${sg_version##?.}
|
|
let sg_version+=$((100 * sg_ver_maj))
|
|
fi
|
|
sg_version=${sg_version##0.}
|
|
#echo "\"$sg_version\""
|
|
if [ -z "$sg_version" ] || [ "$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
|
|
debug=0
|
|
lunsearch=
|
|
opt_idsearch=$(seq 0 7)
|
|
filter_ids=0
|
|
opt_channelsearch=
|
|
remove=
|
|
updated=0
|
|
update=0
|
|
resize=0
|
|
forceremove=
|
|
optscan=1
|
|
sync=1
|
|
existing_targets=1
|
|
mp_enable=
|
|
lipreset=-1
|
|
declare -i scan_flags=0
|
|
ignore_rev=0
|
|
|
|
# Scan options
|
|
opt="$1"
|
|
while [ ! -z "$opt" ] && [ -z "${opt##-*}" ] ; do
|
|
opt=${opt#-}
|
|
case "$opt" in
|
|
a) existing_targets=;; #Scan ALL targets when specified
|
|
c) opt_channelsearch="0 1" ;;
|
|
d) debug=1 ;;
|
|
f) flush=1 ;;
|
|
i) lipreset=0 ;;
|
|
I) shift; lipreset=$opt ;;
|
|
l) lunsearch=$(seq 0 7) ;;
|
|
L) lunsearch=$(seq 0 "$2"); shift ;;
|
|
m) mp_enable=1 ;;
|
|
r) remove=1 ;;
|
|
s) resize=1; mp_enable=1 ;;
|
|
u) update=1 ;;
|
|
w) opt_idsearch=$(seq 0 15) ;;
|
|
-alltargets) existing_targets=;;
|
|
-attachpq3) scan_flags=$((scan_flags|0x1000000)) ;;
|
|
-channels=*) arg=${opt#-channels=};opt_channelsearch=$(expandlist "$arg") ;;
|
|
-color) setcolor ;;
|
|
-flush) flush=1 ;;
|
|
-forceremove) remove=1; forceremove=1 ;;
|
|
-forcerescan) remove=1; forcerescan=1 ;;
|
|
-hosts=*) arg=${opt#-hosts=}; hosts=$(expandlist "$arg") ;;
|
|
-ids=*) arg=${opt#-ids=}; opt_idsearch=$(expandlist "$arg") ; filter_ids=1;;
|
|
-ignore-rev) ignore_rev=1;;
|
|
-issue-lip) lipreset=0 ;;
|
|
-issue-lip-wait) lipreset=${opt#-issue-lip-wait=};;
|
|
-largelun) scan_flags=$((scan_flags|0x200)) ;;
|
|
-luns=*) arg=${opt#-luns=}; lunsearch=$(expandlist "$arg") ;;
|
|
-multipath) mp_enable=1 ;;
|
|
-nooptscan) optscan=0 ;;
|
|
-nosync) sync=0 ;;
|
|
-remove) remove=1 ;;
|
|
-reportlun2) scan_flags=$((scan_flags|0x20000)) ;;
|
|
-resize) resize=1;;
|
|
-sparselun) scan_flags=$((scan_flags|0x40)) ;;
|
|
-sync) sync=2 ;;
|
|
-update) update=1;;
|
|
-wide) opt_idsearch=$(seq 0 15) ;;
|
|
*) echo "Unknown option -$opt !" ;;
|
|
esac
|
|
shift
|
|
opt="$1"
|
|
done
|
|
|
|
if [ -z "$hosts" ] ; then
|
|
if [ -d /sys/class/scsi_host ] ; then
|
|
findhosts_26
|
|
else
|
|
findhosts
|
|
fi
|
|
fi
|
|
|
|
if [ -d /sys/class/scsi_host ] && [ ! -w /sys/class/scsi_host ]; then
|
|
echo "You need to run scsi-rescan-bus.sh as root"
|
|
exit 2
|
|
fi
|
|
[ "$sync" = 1 ] && [ "$remove" = 1 ] && sync=2
|
|
if [ "$sync" = 2 ] ; then
|
|
echo "Syncing file systems"
|
|
sync
|
|
fi
|
|
if [ -w /sys/module/scsi_mod/parameters/default_dev_flags ] && [ $scan_flags != 0 ] ; then
|
|
OLD_SCANFLAGS=$(cat /sys/module/scsi_mod/parameters/default_dev_flags)
|
|
NEW_SCANFLAGS=$((OLD_SCANFLAGS|scan_flags))
|
|
if [ "$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 $NEW_SCANFLAGS > /sys/module/scsi_mod/parameters/default_dev_flags
|
|
else
|
|
unset OLD_SCANFLAGS
|
|
fi
|
|
fi
|
|
DMSETUP=$(which dmsetup)
|
|
[ -z "$DMSETUP" ] && flush= && mp_enable=
|
|
MULTIPATH=$(which multipath 2> /dev/null)
|
|
[ -z "$MULTIPATH" ] && flush= && mp_enable=
|
|
|
|
echo -n "Scanning SCSI subsystem for new devices"
|
|
[ -z "$flush" ] || echo -n ", flush failed multipath devices,"
|
|
[ -z "$remove" ] || echo -n " and remove devices that have disappeared"
|
|
echo
|
|
declare -i found=0
|
|
declare -i updated=0
|
|
declare -i rmvd=0
|
|
|
|
if [ -n "$flush" ] ; then
|
|
if [ -x "$MULTIPATH" ] ; then
|
|
flushmpaths 1
|
|
fi
|
|
fi
|
|
|
|
# Update existing mappings
|
|
if [ $update -eq 1 ] ; then
|
|
echo "Searching for remapped LUNs"
|
|
findremapped
|
|
# If you've changed the mapping, there's a chance it's a different size
|
|
mpaths=""
|
|
findresized
|
|
# Search for resized LUNs
|
|
elif [ $resize -eq 1 ] ; then
|
|
echo "Searching for resized LUNs"
|
|
findresized
|
|
# Normal rescan mode
|
|
else
|
|
for host in $hosts; do
|
|
echo -n "Scanning host $host "
|
|
if [ -e "/sys/class/fc_host/host$host" ] ; then
|
|
# It's pointless to do a target scan on FC
|
|
issue_lip=/sys/class/fc_host/host$host/issue_lip
|
|
if [ -e "$issue_lip" ] && [ "$lipreset" -ge 0 ] ; then
|
|
echo 1 > "$issue_lip" 2> /dev/null;
|
|
udevadm_settle
|
|
[ "$lipreset" -gt 0 ] && sleep "$lipreset"
|
|
fi
|
|
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 $idsearch" | tr '\n' ' '
|
|
else
|
|
echo -n " all SCSI target IDs"
|
|
fi
|
|
if [ -n "$lunsearch" ] ; then
|
|
echo ", LUNs $lunsearch"
|
|
else
|
|
echo ", all LUNs"
|
|
fi
|
|
|
|
if [ -n "$existing_targets" ] ; then
|
|
searchexisting
|
|
else
|
|
dosearch
|
|
fi
|
|
done
|
|
if [ -n "$OLD_SCANFLAGS" ] ; then
|
|
echo "$OLD_SCANFLAGS" > /sys/module/scsi_mod/parameters/default_dev_flags
|
|
fi
|
|
fi
|
|
|
|
let rmvd_found=$rmvd+$found
|
|
if [ -n "$mp_enable" ] && [ $rmvd_found -gt 0 ] ; then
|
|
echo "Attempting to update multipath devices..."
|
|
if [ $rmvd -gt 0 ] ; then
|
|
udevadm_settle
|
|
echo "Removing multipath mappings for removed devices if all paths are now failed... "
|
|
flushmpaths 1
|
|
fi
|
|
if [ $found -gt 0 ] ; then
|
|
/sbin/udevadm trigger --sysname-match=sd*
|
|
udevadm_settle
|
|
if [ -x "$MULTIPATH" ] ; then
|
|
echo "Trying to discover new multipath mappings for newly discovered devices... "
|
|
$MULTIPATH | grep "create:" 2> /dev/null
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
echo "$found new or changed device(s) found. "
|
|
if [ ! -z "$FOUNDDEVS" ] ; then
|
|
printf "%s" "$FOUNDDEVS"
|
|
fi
|
|
echo "$updated remapped or resized device(s) found."
|
|
if [ ! -z "$CHGDEVS" ] ; then
|
|
printf "%s" "$CHGDEVS"
|
|
fi
|
|
echo "$rmvd device(s) removed. "
|
|
if [ ! -z "$RMVDDEVS" ] ; then
|
|
printf "%s" "$RMVDDEVS"
|
|
fi
|
|
|
|
# Local Variables:
|
|
# sh-basic-offset: 2
|
|
# End:
|
|
|