--- /dev/null
+#!/bin/sh
+#
+# chkconfig: 2345 02 98
+# description: Loads and configures the EMC PowerPath drivers.
+#
+# ###################################################################
+# Copyright (c) 2000, EMC Corporation. All Rights Reserved.
+#
+# Most Recent Author: Raghu Adabala
+# Previous Authors: Raghu Adabala and Ed Goggin
+#
+# Contents:
+# Redhat support for load and configure of EMC PowerPath drivers
+# ###################################################################
+#
+
+# @(#) $Header$
+
+# Source function library.
+. /etc/rc.d/init.d/functions
+
+
+# Functions to preserve exceptional command status return values
+
+rc_reset()
+{
+ rc_cmd_stat=0
+ rc_script_stat=0
+}
+
+rc_check()
+{
+ rc_cmd_stat=$?
+ test $rc_cmd_stat -ne 0 && rc_script_stat=$rc_cmd_stat
+ return $rc_cmd_stat
+}
+
+rc_status()
+{
+ rc_check
+
+ if [ "$1" = "-v" ]
+ then
+ case "$rc_script_stat" in
+ 0)
+ ok
+ ;;
+ *)
+ fail
+ ;;
+ esac
+ fi
+ return $rc_script_stat
+}
+
+rc_exit()
+{
+ exit $rc_script_stat
+}
+
+#
+# ###################################################################
+# Copyright (c) 2005, EMC Corporation. All Rights Reserved.
+#
+#
+# Contents:
+# This scripts loads and configures the EMC PowerPath driver(s) on
+# bootup and uloads PowerPath on shutdown.
+# ###################################################################
+#
+
+# @(#) $Header$
+
+PATH=/usr/bin/:/bin:/sbin:/usr/sbin
+
+# the following are the internationalization specific lines
+TEXTDOMAIN=PowerPath
+export TEXTDOMAIN
+export RPM_INSTALL_PREFIX
+# end of internationalization
+
+pp_stop_lvm()
+{
+ if test -x /sbin/vgchange -a -x /sbin/vgscan ; then
+ open_vol=""
+ vgname=`vgdisplay 2>/dev/null| grep "VG Name" | sed -e 's/VG Name/ /g'`
+ for i in $vgname
+ do
+ pv=`vgdisplay -v $i 2>/dev/null| grep "PV Name" | awk '{ print $3 }' | grep emcpower`
+ if [ "$pv" != "" ] ; then
+ err_stop=`/sbin/vgchange -a n $i 2>&1 | grep "open logical volume"`
+ if [ "$err_stop" != "" ]; then
+ if [ "$open_vol" = "" ]; then
+ nls "Following LVM volume groups are in use:"
+ open_vol=$err_stop
+ fi
+ var1=$i
+ var2=`echo $pv`
+ echo "`nls " Volume Group: \\$var1 (\\$var2)"`"
+ fi
+ fi
+ done
+ fi
+ if [ "$open_vol" != "" ]; then
+ nls "These open logical volume devices use LUNs from Powerpath managed devices,"
+ nls "Please re-issue the command after closing these volumes."
+ return 1
+ fi
+ return 0
+}
+
+pp_start_lvm()
+{
+ if test -x /sbin/vgchange -a -x /sbin/vgscan ; then
+ /sbin/vgscan > /dev/null 2>&1
+ /sbin/vgchange -a y > /dev/null 2>&1
+ if [ $? -eq 5 ]; then ## "no volume groups" ==> success
+ /bin/true
+ fi
+ fi
+}
+# Wait for /dev/emcpower to appear.
+# $1 is the number of seconds to wait.
+
+dev_emcpower_is_back()
+{
+ /bin/bash -c "for ((cnt=$1/3; \$cnt > 0; cnt--)); do \
+ test -c /dev/emcpower && break; \
+ sleep 3; \
+ done; \
+ test -c /dev/emcpower"
+}
+
+
+# Start 32 bit Emulation library before powerpath startup for ia64
+start_32bit_emulation()
+{
+ /etc/init.d/ia32el start > /dev/null 2>&1
+ rc_check
+
+ if rc_status ; then
+ nls "\nSuccessfully started 32-bit emulation library"
+ else
+ nls "\nError in starting 32-bit emulation library"
+ fi
+}
+
+# Configure PowerPath paths
+
+configure_pp()
+{
+ if [ -f /etc/emcp_devicesDB.dat ]; then
+ if [ -f /etc/emcp_devicesDB.idx ]; then
+ /sbin/emcpmgr map -p > /dev/null 2>&1
+ rc_check
+ fi
+ fi
+
+ ## If the system has no license, config error is ok.
+
+ if /sbin/emcpreg -l 2>&1 | /usr/bin/grep '^Key' > /dev/null 2>&1; then
+ /sbin/powermt config > /dev/null 2>&1
+ else
+ /sbin/powermt config > /dev/null 2>&1
+ /bin/true
+ fi
+ rc_check
+
+ #
+ # Wait for udev to finish creating emcpower devices
+ #
+ pdfound=1
+ for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15; do
+ pdfound=1
+ for pd in `/bin/ls -d /sys/block/emcpower* 2> /dev/null`; do
+ bpd=`basename $pd`
+ if [ ! -e /dev/$bpd ]; then
+ pdfound=0
+ sleep 2
+ break;
+ fi
+ done
+ if [ "$pdfound" -eq 1 ]; then
+ break
+ fi
+ done
+ if [ "$pdfound" -eq 0 ]; then
+ [ 1 = 0 ]
+ rc_check
+ fi
+
+ /sbin/powermt load > /dev/null 2>&1
+ rc_check
+ /sbin/emcpmgr map > /dev/null 2>&1
+ rc_check
+ /sbin/powercf -C > /dev/null 2>&1
+ /sbin/powermt save > /dev/null 2>&1
+ rc_check
+ /sbin/powermt register > /dev/null 2>&1
+ rc_check
+ /sbin/powermig transition -startup -noprompt > /dev/null 2>&1
+ rc_check
+ pp_start_lvm
+}
+
+# Check for naviagent and powermt before stopping PowerPath
+
+ok_to_stop()
+{
+ ps -C naviagent >> /dev/null
+ if [ $? -eq 0 ]; then
+ nls "Navisphere agent is running."
+ eval echo "$(nls "Please stop the agent and then re-issue \$script_name stop.")"
+ return 1
+ fi
+
+ ps -C powermt >> /dev/null
+ if [ $? -eq 0 ]; then
+ nls "The powermt command is running."
+ eval echo "$(nls "Please stop powermt and then re-issue \$script_name stop.")"
+ return 1
+ fi
+
+ mig_info=`/sbin/powermig info -all`
+ if [ $? -eq 0 ]; then
+ echo "$mig_info" | grep 'No migrations found' > /dev/null
+ if test $? -ne 0 ; then
+ nls "PowerPath migrations are present."
+ eval echo "$(nls "Please cleanup the migrations and then re-issue \$script_name stop.")"
+ return 1
+ fi
+ fi
+
+ if pp_stop_lvm ; then
+ return 0
+ fi
+ return 1
+}
+
+# Load the extensions. Dependencies will load base driver.
+
+load_drivers()
+{
+ for d in `cat $ext; cat $mgr`
+ do
+ /sbin/modprobe -q -s --first-time $d
+ rc_check
+ if [ $? -ne 0 ] ; then
+ eval echo "$(nls "PowerPath could not load module \$d")"
+ break
+ fi
+ done
+
+ if dev_emcpower_is_back 60; then
+ recreate_emcpower_device
+ /sbin/powercf -K > /dev/null 2>&1
+ rc_check
+ else
+ rc_check
+ unload_drivers
+ fi
+
+ if rc_status ; then
+ /sbin/modprobe -q -s --first-time emcpioc
+ rc_check
+ if [ $? -eq 0 ] ; then
+ /sbin/modprobe -r -q -s --first-time emcpioc
+ fi
+ fi
+}
+
+# Unload drivers and extensions.
+
+unload_drivers()
+{
+ do_unload=0
+ retry=4
+ powermt prep_drv_unload > /dev/null 2>&1
+
+
+ ###
+ ### At this point, we really want the driver unload to succeed
+ ### Try hard to make it happen.
+ ###
+ while [ $retry -gt 0 ]
+ do
+ powermt remove dev=all 2> /var/tmp/.pp_exit
+ devr=$?
+ cat /var/tmp/.pp_exit | grep "not found" > /dev/null 2>&1
+ cdevs=$?
+ zerolen=`cat /var/tmp/.pp_exit | wc -c`
+ rm /var/tmp/.pp_exit
+ # reset rc status since we are not willing to
+ # report an error just yet.
+ rc_reset
+ if [ $devr -eq 0 ] ; then
+ do_unload=1
+ retry=0 #success
+ else
+ if [ $cdevs -eq 0 -o $zerolen -eq 0 ] ; then
+ do_unload=1
+ retry=0 #success
+ else
+ sleep 5
+ retry=`expr $retry - 1`
+ #nls "PowerPath devices are open."
+ #eval echo "$(nls "Please close these devices and then re-issue \$script_name stop.")"
+ #/bin/false
+ #uerr=$?
+ #return $uerr
+ fi
+ fi
+ done
+
+
+
+ if [ $do_unload -eq 1 ] ; then
+ /sbin/modprobe -r -q -s `cat $mgr; cat $ext; echo emcp emcplib`
+ uerr=$?
+ return $uerr
+ else
+ nls "PowerPath devices are open."
+ eval echo "$(nls "Please close these devices and then re-issue \$script_name stop.")"
+ /bin/false
+ uerr=$?
+ return $uerr
+ fi
+
+ nls "PowerPath could not unload PowerPath modules."
+ uerr=1
+ return $uerr
+}
+
+recreate_emcpower_device()
+{
+ #
+ # Create /dev/emcpower based on CURRENT misc driver.
+ # These values can be different when PP loads from RD.
+ #
+ rm -f /dev/emcpower
+ mmaj=`cat /sys/class/misc/emcpower/dev | awk -F : '{print $1}'`
+ mmin=`cat /sys/class/misc/emcpower/dev | awk -F : '{print $2}'`
+ mknod /dev/emcpower c $mmaj $mmin > /dev/null
+
+ if [ $? -ne 0 ]; then
+ nls "failed to create emcpower device"
+ fi
+
+}
+
+rc_reset
+script_name=PowerPath
+ext=/etc/emc/.drivers_ext
+mgr=/etc/emc/.drivers_mgr
+
+case "$1" in
+ start)
+ msg_starting "PowerPath"
+
+ ###
+ # Start the 32-bit emulation for ia64
+ ###
+ #if [ "`uname -m`" == "ia64" ]; then
+ # start_32bit_emulation
+ #fi
+
+ ###
+ # Load PP iff it is not already loaded.
+ ###
+ if rc_status ; then
+ lsmod | grep -w '^emcp' > /dev/null
+ if [ $? -ne 0 ]; then
+ load_drivers
+ else
+ if dev_emcpower_is_back 60; then
+ recreate_emcpower_device
+ /sbin/powercf -K > /dev/null 2>&1
+ rc_check
+ else
+ rc_check
+ unload_drivers
+ fi
+ # remove PIOC if it was loaded during RD boot.
+ lsmod | grep emcpioc > /dev/null
+ if [ $? -eq 0 ]; then
+ /sbin/rmmod emcpioc > /dev/null
+ fi
+ fi
+
+ if rc_status ; then
+ if dev_emcpower_is_back 60; then
+ configure_pp
+ else
+ rc_check
+ unload_drivers
+ fi
+ else
+ nls "PowerPath: unable to load PowerPath modules."
+ unload_drivers
+ fi
+ fi
+ rc_status -v
+ ;;
+
+ stop)
+ msg_stopping "PowerPath"
+ lsmod | grep -w '^emcp' > /dev/null
+ if test $? -ne 0; then
+ nls "PowerPath is not running"
+ else
+ #
+ # Tresspass can happen if new devices are added or some devices
+ # are removed by "powermt remove" before "PowerPath stop". The
+ # reason is that vgscan used by us issues "read" to all block
+ # devices.
+ # We configure all devices to avoid unnecessary trespass.
+ #
+ /sbin/powermt config > /dev/null 2>&1
+ if ok_to_stop; then
+ /sbin/powermt save > /dev/null 2>&1
+ rc_check
+ /sbin/emcpmgr unmap > /dev/null 2>&1
+ rc_check
+ /sbin/powermt remove dev=all 2> /var/tmp/.pp_exit
+ devr=$?
+ cat /var/tmp/.pp_exit | grep "not found" > /dev/null 2>&1
+ cdevs=$?
+ zerolen=`cat /var/tmp/.pp_exit | wc -c`
+ rm /var/tmp/.pp_exit
+
+ # reset rc status since we are not willing to quit
+ rc_reset
+ if [ $devr -eq 0 ] ; then
+ unload_drivers
+ rc_check
+ if [ $? -ne 0 ] ; then
+ nls "PowerPath could not unload PowerPath modules."
+ fi
+ else
+ if [ $cdevs -eq 0 -o $zerolen -eq 0 ] ; then
+ unload_drivers
+ rc_check
+ if [ $? -ne 0 ] ; then
+ nls "PowerPath could not unload PowerPath modules."
+ fi
+ else
+ nls "PowerPath devices are open."
+ eval echo "$(nls "Please close these devices and then re-issue \$script_name stop.")"
+ /sbin/emcpmgr map -p > /dev/null 2>&1
+ /sbin/powermt config > /dev/null 2>&1
+ /sbin/powermt load > /dev/null 2>&1
+ /bin/false
+ fi
+ fi
+ else
+ /bin/false ## not ok_to_stop
+ fi
+ fi
+ rc_status -v
+ ;;
+ *)
+ msg_usage "$0 {start|stop}"
+ exit 3
+ ;;
+esac
+
+rc_exit
+# vim:ts=4:sw=4:et
projects / packages / EMCpower.git / commitdiff