def add_dev_to_lio(self, in_wwn=None):
"""
Add an rbd device to the LIO configuration
:param in_wwn: optional wwn identifying the rbd image to clients
(must match across gateways)
:return: LIO LUN object
"""
self.logger.info("(LUN.add_dev_to_lio) Adding image "
"'{}' to LIO".format(self.config_key))
# extract control parameter overrides (if any) or use default
controls = self.controls.copy()
for k in ['max_data_area_mb']:
if controls.get(k, None) is None:
controls[k] = getattr(settings.config, k, None)
control_string = gen_control_string(controls)
if control_string:
self.logger.debug("control=\"{}\"".format(control_string))
new_lun = None
try:
# config string = rbd identifier / config_key (pool/image) /
# optional osd timeout
cfgstring = "rbd/{}/{};osd_op_timeout={}".format(
self.pool, self.image, settings.config.osd_op_timeout)
if (settings.config.cephconf != '/etc/ceph/ceph.conf'):
cfgstring += ";conf={}".format(settings.config.cephconf)
new_lun = UserBackedStorageObject(name=self.config_key,
config=cfgstring,
size=self.size_bytes,
wwn=in_wwn,
control=control_string)
except RTSLibError as err:
self.error = True
self.error_msg = ("failed to add {} to LIO - "
"error({})".format(self.config_key, str(err)))
self.logger.error(self.error_msg)
return None
try:
new_lun.set_attribute("cmd_time_out", 0)
new_lun.set_attribute("qfull_time_out",
settings.config.qfull_timeout)
except RTSLibError as err:
self.error = True
self.error_msg = ("Could not set LIO device attribute "
"cmd_time_out/qfull_time_out for device: {}. "
"Kernel not supported. - "
"error({})".format(self.config_key, str(err)))
self.logger.error(self.error_msg)
new_lun.delete()
return None
self.logger.info("(LUN.add_dev_to_lio) Successfully added {}"
" to LIO".format(self.config_key))
return new_lun
def _add_dev_to_lio_user_rbd(self, in_wwn=None):
"""
Add an rbd device to the LIO configuration (`USER_RBD`)
:param in_wwn: optional wwn identifying the rbd image to clients
(must match across gateways)
:return: LIO LUN object
"""
# extract control parameter overrides (if any) or use default
controls = {}
for k in ['max_data_area_mb', 'hw_max_sectors']:
controls[k] = getattr(self, k)
control_string = gen_control_string(controls)
if control_string:
self.logger.debug("control=\"{}\"".format(control_string))
new_lun = None
try:
# config string = rbd identifier / config_key (pool/image) /
# optional osd timeout
cfgstring = "rbd/{}/{};osd_op_timeout={}".format(
self.pool, self.image, self.osd_op_timeout)
if (settings.config.cephconf != '/etc/ceph/ceph.conf'):
cfgstring += ";conf={}".format(settings.config.cephconf)
if (settings.config.cluster_client_name != 'client.admin'):
client_id = settings.config.cluster_client_name.split('.',
1)[1]
cfgstring += ";id={}".format(client_id)
new_lun = UserBackedStorageObject(name=self.backstore_object_name,
config=cfgstring,
size=self.size_bytes,
wwn=in_wwn,
control=control_string)
except (RTSLibError, IOError) as err:
self.error = True
self.error_msg = ("failed to add {} to LIO - "
"error({})".format(self.config_key, str(err)))
self.logger.error(self.error_msg)
return None
try:
new_lun.set_attribute("cmd_time_out", 0)
new_lun.set_attribute("qfull_time_out", self.qfull_timeout)
except RTSLibError as err:
self.error = True
self.error_msg = ("Could not set LIO device attribute "
"cmd_time_out/qfull_time_out for device: {}. "
"Kernel not supported. - "
"error({})".format(self.config_key, str(err)))
self.logger.error(self.error_msg)
new_lun.delete()
return None
return new_lun