Designing High-Availability for Xen Virtual Machines with HP Serviceguard for Linux

retval=0 ;;

# An error occured while running xm

echo "ERROR: Xen VM startup failed"

retval=1 ;;

# xm command failed with an undocumented error or an error occured while starting

echo "Unrecoverable error occured "

retval=255 ;;

esac

else

echo "ERROR: 255 Xen VM configuration file not found !!!"

exit 255

if (( retval != 0 ))

then

echo "ERROR:" $retval " Function sgx_start_vm"

echo "ERROR:" $retval " Failed to start xen vm"

to_exit=1

}

#######################################################################

###

# sg_xen_stop_vm() is called while stopping a xen vm package (cmhaltpkg)

# or during rollback operation to recover from the package startup.

# Halt each service using xm command.

#######################################################################

###

function sgx_stop_vm

{

typeset -i retval=0

echo "sgx_stop_vm"

[ -x ${SG_XEN_BIN} ] || ( echo "xm not found" && exit 255 )

echo "Halting xen vm ${SG_XEN_VM_NAME}"

${SG_XEN_BIN} shutdown ${SG_XEN_VM_NAME}

case $? in

sgx_probe_vm_status

echo "Xen VM ${SG_XEN_VM_NAME} successfully halted!!"

retval=0 ;;