def login_storage_target(self, connection_info):
data = connection_info['data']
target_lun = data['target_lun']
target_iqn = data['target_iqn']
target_portal = data['target_portal']
auth_method = data.get('auth_method')
auth_username = data.get('auth_username')
auth_password = data.get('auth_password')
if auth_method and auth_method.upper() != 'CHAP':
LOG.error(_LE("Cannot log in target %(target_iqn)s. Unsupported "
"iSCSI authentication method: %(auth_method)s."),
{'target_iqn': target_iqn,
'auth_method': auth_method})
raise exception.UnsupportedBDMVolumeAuthMethod(
auth_method=auth_method)
# Check if we already logged in
if self._volutils.get_device_number_for_target(target_iqn, target_lun):
LOG.debug("Already logged in on storage target. No need to "
"login. Portal: %(target_portal)s, "
"IQN: %(target_iqn)s, LUN: %(target_lun)s",
{'target_portal': target_portal,
'target_iqn': target_iqn, 'target_lun': target_lun})
else:
LOG.debug("Logging in on storage target. Portal: "
"%(target_portal)s, IQN: %(target_iqn)s, "
"LUN: %(target_lun)s",
{'target_portal': target_portal,
'target_iqn': target_iqn, 'target_lun': target_lun})
self._volutils.login_storage_target(target_lun, target_iqn,
target_portal, auth_username,
auth_password)
# Wait for the target to be mounted
self._get_mounted_disk_from_lun(target_iqn, target_lun, True)
def connect_volume(self, connection_info):
connection_properties = connection_info['data']
auth_method = connection_properties.get('auth_method')
if auth_method and auth_method.upper() != 'CHAP':
LOG.error(
_LE("Unsupported iSCSI authentication "
"method: %(auth_method)s."), dict(auth_method=auth_method))
raise exception.UnsupportedBDMVolumeAuthMethod(
auth_method=auth_method)
volume_connected = False
for (initiator_name, target_portal, target_iqn,
target_lun) in self._get_all_paths(connection_properties):
try:
msg = _LI("Attempting to estabilish an iSCSI session to "
"target %(target_iqn)s on portal %(target_portal)s "
"acessing LUN %(target_lun)s using initiator "
"%(initiator_name)s.")
LOG.info(
msg,
dict(target_portal=target_portal,
target_iqn=target_iqn,
target_lun=target_lun,
initiator_name=initiator_name))
self._iscsi_utils.login_storage_target(
target_lun=target_lun,
target_iqn=target_iqn,
target_portal=target_portal,
auth_username=connection_properties.get('auth_username'),
auth_password=connection_properties.get('auth_password'),
mpio_enabled=CONF.hyperv.use_multipath_io,
initiator_name=initiator_name)
volume_connected = True
if not CONF.hyperv.use_multipath_io:
break
except os_win_exc.OSWinException:
LOG.exception(_LE("Could not connect iSCSI target %s."),
target_iqn)
if not volume_connected:
raise exception.VolumeAttachFailed(
_("Could not connect volume %s.") %
connection_properties['volume_id'])