def migration_vm_checks(self, vm_name, dest_node, live):
"""
Implements a series of compatiblity checks required for successful
migration.
"""
(err_list, warn_list) = VNode.migration_vm_checks(self, vm_name,
dest_node, live)
if self.is_up():
vm = self.get_dom(vm_name)
else:
vm = DBHelper().find_by_name(VM,vm_name)
if vm == None :
err_list.append(("VM", "VM %s not found."% vm_name))
return (err_list, warn_list)
# mem assumed to be in MB (same unit)
vm_memory = 0
if vm.is_running():
vm_memory = vm["memory"]
if dest_node.is_up():
node_free_mem = self.guess_free_mem(dest_node)
if int(vm_memory) > node_free_mem:
err_list.append(("Memory","Insufficient memory on destination node. " \
"VM memory %s, free memory on destination node %s " %
(vm["memory"], node_free_mem)))
# TBD : compare CPUs. This needs to encode compatibility list.
# check AMD/INTEL
# X86/X32
# 32 bit vs 64 bit kernel
# critical files available or not.
vm_conf = vm.get_config()
if vm_conf is not None and dest_node.is_up():
bootloader = vm_conf["bootloader"]
if bootloader and bootloader.strip() is not "":
if not dest_node.node_proxy.file_exists(bootloader.strip()):
err_list.append(("Bootloader","Bootloader %s for %s vm not found on destination node." % (bootloader.strip(), vm.name)))
kernel = vm_conf["kernel"]
if kernel and kernel.strip() is not "":
if not dest_node.node_proxy.file_exists(kernel.strip()):
err_list.append(("Kernel","Kernel %s for %s vm not found on destination node." % (kernel.strip(), vm.name)))
ramdisk = vm_conf["ramdisk"]
if ramdisk and ramdisk.strip() is not "":
if not dest_node.node_proxy.file_exists(ramdisk.strip()):
err_list.append(("Ramdisk", "Ramdisk %s for %s vm not found on destination node." % (ramdisk.strip(), vm.name)))
# hvm availablity
if vm_conf and vm_conf.is_hvm() \
and dest_node.get_platform_info().get("xen_caps","").find("hvm")==-1:
err_list.append(("HVM","VM %s requires hvm capabilities which are not found on destination node." % (vm.name)))
# TBD : PAE kernel check
return (err_list, warn_list)
def migration_vm_checks(self, vm_name, dest_node, live):
"""
Implements a series of compatiblity checks required for successful
migration.
"""
(err_list,
warn_list) = VNode.migration_vm_checks(self, vm_name, dest_node, live)
if self.is_up():
vm = self.get_dom(vm_name)
else:
vm = DBHelper().find_by_name(VM, vm_name)
if vm == None:
err_list.append(("VM", "VM %s not found." % vm_name))
return (err_list, warn_list)
# mem assumed to be in MB (same unit)
vm_memory = 0
if vm.is_running():
vm_memory = vm["memory"]
if dest_node.is_up():
node_free_mem = self.guess_free_mem(dest_node)
if int(vm_memory) > node_free_mem:
err_list.append(("Memory","Insufficient memory on destination node. " \
"VM memory %s, free memory on destination node %s " %
(vm["memory"], node_free_mem)))
# TBD : compare CPUs. This needs to encode compatibility list.
# check AMD/INTEL
# X86/X32
# 32 bit vs 64 bit kernel
# critical files available or not.
vm_conf = vm.get_config()
if vm_conf is not None and dest_node.is_up():
bootloader = vm_conf["bootloader"]
if bootloader and bootloader.strip() is not "":
if not dest_node.node_proxy.file_exists(bootloader.strip()):
err_list.append((
"Bootloader",
"Bootloader %s for %s vm not found on destination node."
% (bootloader.strip(), vm.name)))
kernel = vm_conf["kernel"]
if kernel and kernel.strip() is not "":
if not dest_node.node_proxy.file_exists(kernel.strip()):
err_list.append(
("Kernel",
"Kernel %s for %s vm not found on destination node." %
(kernel.strip(), vm.name)))
ramdisk = vm_conf["ramdisk"]
if ramdisk and ramdisk.strip() is not "":
if not dest_node.node_proxy.file_exists(ramdisk.strip()):
err_list.append((
"Ramdisk",
"Ramdisk %s for %s vm not found on destination node." %
(ramdisk.strip(), vm.name)))
# hvm availablity
if vm_conf and vm_conf.is_hvm() \
and dest_node.get_platform_info().get("xen_caps","").find("hvm")==-1:
err_list.append((
"HVM",
"VM %s requires hvm capabilities which are not found on destination node."
% (vm.name)))
# TBD : PAE kernel check
return (err_list, warn_list)
