openstack/cinder
Code Issues Proposed changes

LVM nvmet: Add support for multiple ip addresses

Browse Source 
The nvmet target driver only supports single portals, which was all that
was available back on the original implementation, but now that it
supports the new connection information format it can provide
multiple portals.

This patch adds support to provide multiple portals when attaching a new
volume, that way os-brick can try the different portals when connecting a
volume until it finds one that works, making it more robust.

Thanks to this features it will also enable multipathing automatically
(without additional changes) once the NVMe-oF os-brick connector
supports it.

Since the new connection information format is necessary to pass
multiple portals it requires that the configuration option
``nvmeof_conn_info_version`` is set to ``2``.

The patch also deprecates the ``iscsi_secondary_ip_addresses``
configuration option in favor of the new
``target_secondary_ip_addresses``.  This is something we already did a
while back for ``iscsi_ip_address`` which was renamed in the same way to
``target_ip_address``.

Change-Id: Iccfbe62406b6202446e974487e0f91465a5d0fa3
This commit is contained in:
Gorka Eguileor 2022-04-22 15:49:20 +02:00
parent 8e7ead7c27
commit a451acf357
17 changed files with 214 additions and 84 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

67
cinder/tests/unit/targets/test_nvmeof_driver.py
View File

@ -62,7 +62,7 @@ class TestNVMeOFDriver(tf.TargetDriverFixture):
"ngn.%s-%s" % (
self.nvmet_subsystem_name,
self.fake_volume_id),
self.target_ip,
[self.target_ip],
self.target_port,
self.nvme_transport_type,
self.nvmet_ns_id
@ -92,7 +92,7 @@ class TestNVMeOFDriver(tf.TargetDriverFixture):
mock_create_nvme_target.assert_called_once_with(
self.fake_volume_id,
self.configuration.target_prefix,
self.target_ip,
[self.target_ip],
self.target_port,
self.nvme_transport_type,
self.nvmet_port_id,
@ -117,7 +117,31 @@ class TestNVMeOFDriver(tf.TargetDriverFixture):
mock_uuid.assert_called_once_with(self.testvol)
mock_get_conn_props.assert_called_once_with(
f'ngn.{self.nvmet_subsystem_name}-{self.fake_volume_id}',
self.target_ip,
[self.target_ip],
str(self.target_port),
self.nvme_transport_type,
str(self.nvmet_ns_id),
mock_uuid.return_value)
@mock.patch.object(nvmeof.NVMeOF, '_get_nvme_uuid')
@mock.patch.object(nvmeof.NVMeOF, '_get_connection_properties')
def test__get_connection_properties_multiple_addresses(
self, mock_get_conn_props, mock_uuid):
"""Test connection properties from a volume with multiple ips."""
self.testvol['provider_location'] = self.target.get_nvmeof_location(
f"ngn.{self.nvmet_subsystem_name}-{self.fake_volume_id}",
[self.target_ip, '127.0.0.1'],
self.target_port,
self.nvme_transport_type,
self.nvmet_ns_id
)
res = self.target._get_connection_properties_from_vol(self.testvol)
self.assertEqual(mock_get_conn_props.return_value, res)
mock_uuid.assert_called_once_with(self.testvol)
mock_get_conn_props.assert_called_once_with(
f'ngn.{self.nvmet_subsystem_name}-{self.fake_volume_id}',
[self.target_ip, '127.0.0.1'],
str(self.target_port),
self.nvme_transport_type,
str(self.nvmet_ns_id),
@ -134,7 +158,7 @@ class TestNVMeOFDriver(tf.TargetDriverFixture):
'ns_id': str(self.nvmet_ns_id)
}
res = self.target._get_connection_properties(nqn,
self.target_ip,
[self.target_ip],
str(self.target_port),
self.nvme_transport_type,
str(self.nvmet_ns_id),
@ -158,7 +182,7 @@ class TestNVMeOFDriver(tf.TargetDriverFixture):
expected_transport)],
}
res = self.target._get_connection_properties(nqn,
self.target_ip,
[self.target_ip],
str(self.target_port),
transport,
str(self.nvmet_ns_id),
@ -182,6 +206,22 @@ class TestNVMeOFDriver(tf.TargetDriverFixture):
root_helper=utils.get_root_helper(),
configuration=self.configuration)
def test_invalid_secondary_ips_old_conn_info_combination(self):
"""Secondary IPS are only supported with new connection information."""
self.configuration.target_secondary_ip_addresses = ['127.0.0.1']
self.configuration.nvmeof_conn_info_version = 1
self.assertRaises(exception.InvalidConfigurationValue,
FakeNVMeOFDriver,
root_helper=utils.get_root_helper(),
configuration=self.configuration)
def test_valid_secondary_ips_old_conn_info_combination(self):
"""Secondary IPS are supported with new connection information."""
self.configuration.target_secondary_ip_addresses = ['127.0.0.1']
self.configuration.nvmeof_conn_info_version = 2
FakeNVMeOFDriver(root_helper=utils.get_root_helper(),
configuration=self.configuration)
def test_are_same_connector(self):
res = self.target.are_same_connector({'nqn': 'nvme'}, {'nqn': 'nvme'})
self.assertTrue(res)
@ -192,3 +232,20 @@ class TestNVMeOFDriver(tf.TargetDriverFixture):
def test_are_same_connector_different(self, a_conn_props, b_conn_props):
res = self.target.are_same_connector(a_conn_props, b_conn_props)
self.assertFalse(bool(res))
def test_get_nvmeof_location(self):
"""Serialize connection information into location."""
result = self.target.get_nvmeof_location(
'ngn.subsys_name-vol_id', ['127.0.0.1'], 4420, 'tcp', 10)
expected = '127.0.0.1:4420 tcp ngn.subsys_name-vol_id 10'
self.assertEqual(expected, result)
def test_get_nvmeof_location_multiple_ips(self):
"""Serialize connection information with multiple ips into location."""
result = self.target.get_nvmeof_location(
'ngn.subsys_name-vol_id', ['127.0.0.1', '192.168.1.1'], 4420,
'tcp', 10)
expected = '127.0.0.1,192.168.1.1:4420 tcp ngn.subsys_name-vol_id 10'
self.assertEqual(expected, result)

48
cinder/tests/unit/targets/test_nvmet_driver.py
View File

@ -76,7 +76,7 @@ class TestNVMETDriver(tf.TargetDriverFixture):
mock_uuid.assert_called_once_with(vol)
mock_get_conn_props.assert_called_once_with(
mock.sentinel.nqn,
self.target.target_ip,
self.target.target_ips,
self.target.target_port,
self.target.nvme_transport_type,
mock.sentinel.nsid,
@ -119,7 +119,7 @@ class TestNVMETDriver(tf.TargetDriverFixture):
mock_map.assert_called_once_with(mock.sentinel.vol,
mock.sentinel.volume_path)
mock_location.assert_called_once_with(mock.sentinel.nqn,
self.target.target_ip,
self.target.target_ips,
self.target.target_port,
self.target.nvme_transport_type,
mock.sentinel.nsid)
@ -160,7 +160,7 @@ class TestNVMETDriver(tf.TargetDriverFixture):
mock.sentinel.volume_path,
mock_uuid.return_value)
mock_port.assert_called_once_with(mock_nqn.return_value,
self.target.target_ip,
self.target.target_ips,
self.target.target_port,
self.target.nvme_transport_type,
self.target.nvmet_port_id)
@ -197,7 +197,7 @@ class TestNVMETDriver(tf.TargetDriverFixture):
mock_port.assert_not_called()
else:
mock_port.assert_called_once_with(mock.sentinel.nqn,
self.target.target_ip,
self.target.target_ips,
self.target.target_port,
self.target.nvme_transport_type,
self.target.nvmet_port_id)
@ -345,13 +345,14 @@ class TestNVMETDriver(tf.TargetDriverFixture):
def test__ensure_port_exports_already_does(self, mock_port):
"""Skips port creation and subsystem export since they both exist."""
nqn = 'nqn.nvme-subsystem-1-uuid'
port_id = 1
mock_port.return_value.subsystems = [nqn]
self.target._ensure_port_exports(nqn,
mock.sentinel.addr,
[mock.sentinel.addr],
mock.sentinel.port,
mock.sentinel.transport,
mock.sentinel.port_id)
mock_port.assert_called_once_with(mock.sentinel.port_id)
port_id)
mock_port.assert_called_once_with(port_id)
mock_port.setup.assert_not_called()
mock_port.return_value.add_subsystem.assert_not_called()
@ -359,13 +360,14 @@ class TestNVMETDriver(tf.TargetDriverFixture):
def test__ensure_port_exports_port_exists_not_exported(self, mock_port):
"""Skips port creation if exists but exports subsystem."""
nqn = 'nqn.nvme-subsystem-1-vol-2-uuid'
port_id = 1
mock_port.return_value.subsystems = ['nqn.nvme-subsystem-1-vol-1-uuid']
self.target._ensure_port_exports(nqn,
mock.sentinel.addr,
[mock.sentinel.addr],
mock.sentinel.port,
mock.sentinel.transport,
mock.sentinel.port_id)
mock_port.assert_called_once_with(mock.sentinel.port_id)
port_id)
mock_port.assert_called_once_with(port_id)
mock_port.setup.assert_not_called()
mock_port.return_value.add_subsystem.assert_called_once_with(nqn)
@ -373,23 +375,35 @@ class TestNVMETDriver(tf.TargetDriverFixture):
def test__ensure_port_exports_port(self, mock_port):
"""Creates the port and export the subsystem when they don't exist."""
nqn = 'nqn.nvme-subsystem-1-vol-2-uuid'
port_id = 1
mock_port.side_effect = priv_nvmet.NotFound
self.target._ensure_port_exports(nqn,
mock.sentinel.addr,
[mock.sentinel.addr,
mock.sentinel.addr2],
mock.sentinel.port,
mock.sentinel.transport,
mock.sentinel.port_id)
mock_port.assert_called_once_with(mock.sentinel.port_id)
new_port = {'addr': {'adrfam': 'ipv4',
port_id)
new_port1 = {'addr': {'adrfam': 'ipv4',
'traddr': mock.sentinel.addr,
'treq': 'not specified',
'trsvcid': mock.sentinel.port,
'trtype': mock.sentinel.transport},
'portid': mock.sentinel.port_id,
'portid': port_id,
'referrals': [],
'subsystems': [nqn]}
mock_port.setup.assert_called_once_with(self.target._nvmet_root,
new_port)
new_port2 = new_port1.copy()
new_port2['portid'] = port_id + 1
new_port2['addr'] = new_port1['addr'].copy()
new_port2['addr']['traddr'] = mock.sentinel.addr2
self.assertEqual(2, mock_port.call_count)
self.assertEqual(2, mock_port.setup.call_count)
mock_port.assert_has_calls([
mock.call(port_id),
mock.call.setup(self.target._nvmet_root, new_port1),
mock.call(port_id + 1),
mock.call.setup(self.target._nvmet_root, new_port2)
])
mock_port.return_value.assert_not_called()
@mock.patch.object(nvmet.NVMET, '_locked_unmap_volume')

1
cinder/tests/unit/targets/test_spdknvmf.py
View File

@ -349,6 +349,7 @@ class SpdkNvmfDriverTestCase(test.TestCase):
super(SpdkNvmfDriverTestCase, self).setUp()
self.configuration = mock.Mock(conf.Configuration)
self.configuration.target_ip_address = '192.168.0.1'
self.configuration.target_secondary_ip_addresses = []
self.configuration.target_port = '4420'
self.configuration.target_prefix = ""
self.configuration.nvmet_port_id = "1"

17
cinder/tests/unit/volume/drivers/test_lvm_driver.py
View File

@ -65,6 +65,23 @@ class LVMVolumeDriverTestCase(test_driver.BaseDriverTestCase):
lvm.LVMVolumeDriver,
configuration=self.configuration)
def test___init___secondary_ips_not_supported(self):
"""Fail to use secondary ips if target driver doesn't support it."""
original_import = importutils.import_object
def wrap_target_as_no_secondary_ips_support(*args, **kwargs):
res = original_import(*args, **kwargs)
self.mock_object(res, 'SECONDARY_IP_SUPPORT', False)
return res
self.patch('oslo_utils.importutils.import_object',
side_effect=wrap_target_as_no_secondary_ips_support)
self.configuration.target_secondary_ip_addresses = True
self.assertRaises(exception.InvalidConfigurationValue,
lvm.LVMVolumeDriver,
configuration=self.configuration)
def test___init___share_target_supported(self):
"""OK to use shared targets if target driver supports it."""
original_import = importutils.import_object

3
cinder/tests/unit/volume/drivers/test_spdk.py
View File

@ -502,6 +502,7 @@ class SpdkDriverTestCase(test.TestCase):
self.configuration = mock.Mock(conf.Configuration)
self.configuration.target_helper = ""
self.configuration.target_ip_address = "192.168.0.1"
self.configuration.target_secondary_ip_addresses = []
self.configuration.target_port = 4420
self.configuration.target_prefix = "nqn.2014-08.io.spdk"
self.configuration.nvmeof_conn_info_version = 1
@ -796,7 +797,7 @@ class SpdkDriverTestCase(test.TestCase):
self.configuration.nvmet_subsystem_name,
self.driver.target_driver._get_first_free_node()
),
self.configuration.target_ip_address,
[self.configuration.target_ip_address],
self.configuration.target_port, "rdma",
self.configuration.nvmet_ns_id
),

2
cinder/tests/unit/windows/test_iscsi.py
View File

@ -82,7 +82,7 @@ class TestWindowsISCSIDriver(test.TestCase):
self._driver.configuration = mock.Mock()
self._driver.configuration.target_port = iscsi_port
self._driver.configuration.target_ip_address = requested_ips[0]
self._driver.configuration.iscsi_secondary_ip_addresses = (
self._driver.configuration.target_secondary_ip_addresses = (
requested_ips[1:])
self._driver._tgt_utils.get_portal_locations.return_value = (

7
cinder/volume/driver.py
View File

@ -57,7 +57,8 @@ volume_opts = [
default='$my_ip',
help='The IP address that the iSCSI/NVMEoF daemon is '
'listening on'),
cfg.ListOpt('iscsi_secondary_ip_addresses',
cfg.ListOpt('target_secondary_ip_addresses',
deprecated_name='iscsi_secondary_ip_addresses',
default=[],
help='The list of secondary IP addresses of the '
'iSCSI/NVMEoF daemon'),
@ -276,7 +277,9 @@ nvmeof_opts = [
nvmet_opts = [
cfg.PortOpt('nvmet_port_id',
default=1,
help='The port that the NVMe target is listening on.'),
help='The id of the NVMe target port definition when not '
'sharing targets. The starting port id value when '
'sharing, incremented for each secondary ip address.'),
cfg.IntOpt('nvmet_ns_id',
default=10,
help='Namespace id for the subsystem for the LVM volume when '

8
cinder/volume/drivers/lvm.py
View File

@ -118,6 +118,12 @@ class LVMVolumeDriver(driver.VolumeDriver):
and not self.target_driver.SHARED_TARGET_SUPPORT):
raise exception.InvalidConfigurationValue(
f"{target_driver} doesn't support shared targets")
if (self.configuration.target_secondary_ip_addresses
and not self.target_driver.SECONDARY_IP_SUPPORT):
raise exception.InvalidConfigurationValue(
f"{target_driver} doesn't support secondary addresses")
self._sparse_copy_volume = False
@classmethod
@ -129,7 +135,7 @@ class LVMVolumeDriver(driver.VolumeDriver):
'target_ip_address', 'target_helper', 'target_protocol',
'volume_clear', 'volume_clear_size', 'reserved_percentage',
'max_over_subscription_ratio', 'volume_dd_blocksize',
'target_prefix', 'volumes_dir', 'iscsi_secondary_ip_addresses',
'target_prefix', 'volumes_dir', 'target_secondary_ip_addresses',
'target_port',
'iscsi_write_cache', 'iscsi_target_flags', # TGT
'iet_conf', 'iscsi_iotype', # IET

4
cinder/volume/drivers/synology/synology_common.py
View File

@ -993,7 +993,7 @@ class SynoCommon(object):
def get_provider_location(self, iqn, trg_id):
portals = ['%(ip)s:%(port)d' % {'ip': self.get_ip(),
'port': self.target_port}]
sec_ips = self.config.safe_get('iscsi_secondary_ip_addresses')
sec_ips = self.config.safe_get('target_secondary_ip_addresses')
for ip in sec_ips:
portals.append('%(ip)s:%(port)d' %
{'ip': ip,
@ -1288,7 +1288,7 @@ class SynoCommon(object):
'access_mode': 'rw',
'discard': False
}
ips = self.config.safe_get('iscsi_secondary_ip_addresses')
ips = self.config.safe_get('target_secondary_ip_addresses')
if ips:
target_portals = [iscsi_properties['target_portal']]
for ip in ips:

2
cinder/volume/drivers/synology/synology_iscsi.py
View File

@ -49,7 +49,7 @@ class SynoISCSIDriver(driver.ISCSIDriver):
additional_opts = cls._get_oslo_driver_opts(
'target_ip_address', 'target_protocol', 'target_port',
'driver_use_ssl', 'use_chap_auth', 'chap_username',
'chap_password', 'iscsi_secondary_ip_addresses', 'target_prefix',
'chap_password', 'target_secondary_ip_addresses', 'target_prefix',
'reserved_percentage', 'max_over_subscription_ratio')
return common.cinder_opts + additional_opts

2
cinder/volume/drivers/windows/iscsi.py
View File

@ -93,7 +93,7 @@ class WindowsISCSIDriver(driver.ISCSIDriver):
iscsi_port = self.configuration.target_port
iscsi_ips = ([self.configuration.target_ip_address] +
self.configuration.iscsi_secondary_ip_addresses)
self.configuration.target_secondary_ip_addresses)
requested_portals = {':'.join([iscsi_ip, str(iscsi_port)])
for iscsi_ip in iscsi_ips}

1
cinder/volume/targets/driver.py
View File

@ -33,6 +33,7 @@ class Target(object, metaclass=abc.ABCMeta):
"""
storage_protocol = None
SHARED_TARGET_SUPPORT = False
SECONDARY_IP_SUPPORT = True
def __init__(self, *args, **kwargs):
# TODO(stephenfin): Drop this in favour of using 'db' directly

6
cinder/volume/targets/iscsi.py
View File

@ -167,8 +167,8 @@ class ISCSITarget(driver.Target):
def _get_portals_config(self):
# Prepare portals configuration
portals_ips = ([self.configuration.target_ip_address]
+ self.configuration.iscsi_secondary_ip_addresses or [])
portals_ips = ([self.configuration.target_ip_address] +
self.configuration.target_secondary_ip_addresses or [])
return {'portals_ips': portals_ips,
'portals_port': self.configuration.target_port}
@ -201,7 +201,7 @@ class ISCSITarget(driver.Target):
data = {}
data['location'] = self._iscsi_location(
self.configuration.target_ip_address, tid, iscsi_name, lun,
self.configuration.iscsi_secondary_ip_addresses)
self.configuration.target_secondary_ip_addresses)
LOG.debug('Set provider_location to: %s', data['location'])
data['auth'] = self._iscsi_authentication(
'CHAP', *chap_auth)

32
cinder/volume/targets/nvmeof.py
View File

@ -40,7 +40,8 @@ class NVMeOF(driver.Target):
"""Reads NVMeOF configurations."""
super(NVMeOF, self).__init__(*args, **kwargs)
self.target_ip = self.configuration.target_ip_address
self.target_ips = ([self.configuration.target_ip_address] +
self.configuration.target_secondary_ip_addresses)
self.target_port = self.configuration.target_port
self.nvmet_port_id = self.configuration.nvmet_port_id
self.nvmet_ns_id = self.configuration.nvmet_ns_id
@ -57,6 +58,13 @@ class NVMeOF(driver.Target):
protocol=target_protocol
)
# Secondary ip addresses only work with new connection info
if (self.configuration.target_secondary_ip_addresses
and self.configuration.nvmeof_conn_info_version == 1):
raise exception.InvalidConfigurationValue(
'Secondary addresses need to use NVMe-oF connection properties'
' format version 2 or greater (nvmeof_conn_info_version).')
def initialize_connection(self, volume, connector):
"""Returns the connection info.
@ -95,20 +103,22 @@ class NVMeOF(driver.Target):
method.
:return: dictionary with the connection properties using one of the 2
existing formats depending on the nvmeof_new_conn_info
existing formats depending on the nvmeof_conn_info_version
configuration option.
"""
location = volume['provider_location']
target_connection, nvme_transport_type, nqn, nvmet_ns_id = (
location.split(' '))
target_portal, target_port = target_connection.split(':')
target_portals, target_port = target_connection.split(':')
target_portals = target_portals.split(',')
uuid = self._get_nvme_uuid(volume)
return self._get_connection_properties(nqn, target_portal, target_port,
return self._get_connection_properties(nqn,
target_portals, target_port,
nvme_transport_type,
nvmet_ns_id, uuid)
def _get_connection_properties(self, nqn, portal, port, transport, ns_id,
def _get_connection_properties(self, nqn, portals, port, transport, ns_id,
uuid):
"""Get connection properties dictionary.
@ -150,13 +160,13 @@ class NVMeOF(driver.Target):
return {
'target_nqn': nqn,
'vol_uuid': uuid,
'portals': [(portal, port, transport)],
'portals': [(portal, port, transport) for portal in portals],
'ns_id': ns_id,
}
# NVMe-oF Connection Information Version 1
result = {
'target_portal': portal,
'target_portal': portals[0],
'target_port': port,
'nqn': nqn,
'transport_type': transport,
@ -173,12 +183,12 @@ class NVMeOF(driver.Target):
"""
return None
def get_nvmeof_location(self, nqn, target_ip, target_port,
def get_nvmeof_location(self, nqn, target_ips, target_port,
nvme_transport_type, nvmet_ns_id):
"""Serializes driver data into single line string."""
return "%(ip)s:%(port)s %(transport)s %(nqn)s %(ns_id)s" % (
{'ip': target_ip,
{'ip': ','.join(target_ips),
'port': target_port,
'transport': nvme_transport_type,
'nqn': nqn,
@ -198,7 +208,7 @@ class NVMeOF(driver.Target):
return self.create_nvmeof_target(
volume['id'],
self.configuration.target_prefix,
self.target_ip,
self.target_ips,
self.target_port,
self.nvme_transport_type,
self.nvmet_port_id,
@ -222,7 +232,7 @@ class NVMeOF(driver.Target):
def create_nvmeof_target(self,
volume_id,
subsystem_name,
target_ip,
target_ips,
target_port,
transport_type,
nvmet_port_id,

19
cinder/volume/targets/nvmet.py
View File

@ -61,7 +61,7 @@ class NVMET(nvmeof.NVMeOF):
return {
'driver_volume_type': self.protocol,
'data': self._get_connection_properties(nqn,
self.target_ip,
self.target_ips,
self.target_port,
self.nvme_transport_type,
ns_id, uuid),
@ -75,7 +75,7 @@ class NVMET(nvmeof.NVMeOF):
else:
nqn, ns_id = self._map_volume(volume, volume_path)
location = self.get_nvmeof_location(nqn,
self.target_ip,
self.target_ips,
self.target_port,
self.nvme_transport_type,
ns_id)
@ -92,7 +92,7 @@ class NVMET(nvmeof.NVMeOF):
ns_id = self._ensure_subsystem_exists(nqn, volume_path, uuid)
self._ensure_port_exports(nqn, self.target_ip, self.target_port,
self._ensure_port_exports(nqn, self.target_ips, self.target_port,
self.nvme_transport_type,
self.nvmet_port_id)
except Exception:
@ -195,11 +195,13 @@ class NVMET(nvmeof.NVMeOF):
def _get_nvme_uuid(self, volume):
return volume.name_id
def _ensure_port_exports(self, nqn, addr, port, transport_type, port_id):
def _ensure_port_exports(self, nqn, addrs, port, transport_type, port_id):
for addr in addrs:
# Assume if port exists, it has the right configuration
try:
port = nvmet.Port(port_id)
LOG.debug('Skip creating port %s as it already exists.', port_id)
nvme_port = nvmet.Port(port_id)
LOG.debug('Skip creating port %s as it already exists.',
port_id)
except nvmet.NotFound:
LOG.debug('Creating port %s.', port_id)
@ -220,11 +222,12 @@ class NVMET(nvmeof.NVMeOF):
LOG.debug('Added port: %s', port_id)
else:
if nqn in port.subsystems:
if nqn in nvme_port.subsystems:
LOG.debug('%s already exported on port %s', nqn, port_id)
else:
port.add_subsystem(nqn) # privsep
nvme_port.add_subsystem(nqn) # privsep
LOG.debug('Exported %s on port %s', nqn, port_id)
port_id += 1
# ####### Connection termination methods ########

7
cinder/volume/targets/spdknvmf.py
View File

@ -51,6 +51,7 @@ LOG = logging.getLogger(__name__)
class SpdkNvmf(nvmeof.NVMeOF):
SECONDARY_IP_SUPPORT = False
def __init__(self, *args, **kwargs):
super(SpdkNvmf, self).__init__(*args, **kwargs)
@ -131,7 +132,7 @@ class SpdkNvmf(nvmeof.NVMeOF):
def create_nvmeof_target(self,
volume_id,
subsystem_name,
target_ip,
target_ips,
target_port,
transport_type,
nvmet_port_id,
@ -158,7 +159,7 @@ class SpdkNvmf(nvmeof.NVMeOF):
listen_address = {
'trtype': transport_type,
'traddr': target_ip,
'traddr': target_ips[0],
'trsvcid': str(target_port),
}
params = {
@ -179,7 +180,7 @@ class SpdkNvmf(nvmeof.NVMeOF):
location = self.get_nvmeof_location(
nqn,
target_ip,
target_ips,
target_port,
transport_type,
ns_id)

16
releasenotes/notes/nvmet-multipath-d35f55286f263e72.yaml Normal file
View File

@ -0,0 +1,16 @@
---
features:
- |
nvmet target driver: Added support to serve volumes on multiple addresses
using the ``target_secondary_ip_addresses`` configuration option. This
allows os-brick to iterate through them in search of one connection that
works, and once os-brick supports NVMe-oF multipathing it will be
automatically supported.
This requires that ``nvmeof_conn_info_version`` configuration option is set
to ``2`` as well.
deprecations:
- |
Configuration option ``iscsi_secondary_ip_addresses`` is deprecated in
favor of ``target_secondary_ip_addresses`` to follow the same naming
convention of ``target_ip_address``.