def DisableMultipath(naa):
client = MultipathClient()
with open(util.MULTIPATH_CONF, 'r') as fd:
multipath_config_string = fd.read()
_config = config.Configuration.from_multipathd_conf(
multipath_config_string)
# delete whitelist wwid
white_list = _config.whitelist.wwid
multipath_list = _config.multipaths
# check naa
if ('"%s"' % naa) not in white_list:
raise store_exception.StoreInvalidException(naa)
white_list.remove('"%s"' % naa)
# delete multipath section if have
for multipath in multipath_list:
if naa == multipath.wwid.strip('"'):
multipath_list.remove(multipath)
break
# reconfigure
client.write_to_multipathd_conf(_config)
util.StoreCmdRun("%s reconfigure" % util.MULTIPATHD)
logging.info("Naa %s is disable multipath." % naa)
def SetPolicy(naa, policy):
client = MultipathClient()
with open(util.MULTIPATH_CONF, 'r') as fd:
multipath_config_string = fd.read()
_config = config.Configuration.from_multipathd_conf(
multipath_config_string)
white_list = _config.whitelist.wwid
multipath_list = _config.multipaths
# check naa
if ('"%s"' % naa) not in white_list:
raise store_exception.StoreInvalidException(naa)
# delete old multipath section
for multipath in multipath_list:
if naa == multipath.wwid.strip('"'):
multipath_list.remove(multipath)
break
# new multipath section
new_section = config.MultipathEntry()
if policy == adp_pb2.DEFAULT:
logging.info("Naa %s policy change to DEFAULT." % naa)
if policy == adp_pb2.RECENTLY_USED:
new_section.wwid = '"%s"' % naa
new_section.path_grouping_policy = '"failover"'
new_section.failback = '"manual"'
multipath_list.append(new_section)
logging.info("Naa %s policy change to RECENTLY_USED." % naa)
if policy == adp_pb2.FIXED:
new_section.wwid = '"%s"' % naa
new_section.path_grouping_policy = '"failover"'
new_section.failback = '"immediate"'
multipath_list.append(new_section)
logging.info("Naa %s policy change to FIXED." % naa)
if policy == adp_pb2.LOOP:
new_section.wwid = '"%s"' % naa
new_section.path_grouping_policy = '"multibus"'
multipath_list.append(new_section)
logging.info("Naa %s policy change to LOOP." % naa)
if policy == adp_pb2.OPTIMAL:
new_section.wwid = '"%s"' % naa
new_section.path_grouping_policy = '"group_by_prio"'
new_section.prio = '"alua"'
new_section.failback = '"immediate"'
multipath_list.append(new_section)
logging.info("Naa %s policy change to OPTIMAL." % naa)
# reconfigure
client.write_to_multipathd_conf(_config)
util.StoreCmdRun("%s reconfigure" % util.MULTIPATHD)
def SetDefaultConfig():
# get default_multipath.conf
client = MultipathClient()
with open(DEFAULT_CONFIG, 'r') as fd:
default_config_string = fd.read()
logging.info("default_config_string is %s" % default_config_string)
default_config = config.Configuration.from_multipathd_conf(
default_config_string)
# write to /etc/multipath.conf
client.write_to_multipathd_conf(default_config)
# reconfigure
util.StoreCmdRun("%s reconfigure " % util.MULTIPATHD)
def EnableMultipath(naa):
client = MultipathClient()
with open(util.MULTIPATH_CONF, 'r') as fd:
multipath_config_string = fd.read()
_config = config.Configuration.from_multipathd_conf(
multipath_config_string)
# check naa
if ('"%s"' % naa) in _config.whitelist.wwid:
logging.info('naa %s is already set multipath.' % naa)
else:
_config.whitelist.wwid.append('"%s"' % naa)
client.write_to_multipathd_conf(_config)
# reconfigure
util.StoreCmdRun("%s reconfigure" % util.MULTIPATHD)
logging.info("Naa %s is enable multipath." % naa)