053b2fe63c
This patch enables Active/Active support in NetApp ISCSI/FC drivers. To support replication in A/A mode, the method failover_host was splitted in two phases (failover and failover_completed) as required by the spec [1]. [1] https://specs.openstack.org/openstack/cinder-specs/specs/ocata/ha-aa-replication.html Change-Id: I4e38d592abf1d36dedda97a17710746b4037c779
151 lines
5.8 KiB
Python
151 lines
5.8 KiB
Python
# Copyright (c) 2014 Clinton Knight. All rights reserved.
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# Copyright (c) 2016 Mike Rooney. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Volume driver for NetApp Data ONTAP (C-mode) iSCSI storage systems.
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"""
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from cinder import interface
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from cinder.volume import driver
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from cinder.volume.drivers.netapp.dataontap import block_cmode
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from cinder.volume.drivers.netapp import options as na_opts
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@interface.volumedriver
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class NetAppCmodeISCSIDriver(driver.BaseVD,
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driver.ManageableVD):
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"""NetApp C-mode iSCSI volume driver."""
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DRIVER_NAME = 'NetApp_iSCSI_Cluster_direct'
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# ThirdPartySystems wiki page
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CI_WIKI_NAME = "NetApp_CI"
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VERSION = block_cmode.NetAppBlockStorageCmodeLibrary.VERSION
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SUPPORTS_ACTIVE_ACTIVE = True
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def __init__(self, *args, **kwargs):
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super(NetAppCmodeISCSIDriver, self).__init__(*args, **kwargs)
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self.library = block_cmode.NetAppBlockStorageCmodeLibrary(
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self.DRIVER_NAME, 'iSCSI', **kwargs)
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@staticmethod
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def get_driver_options():
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return na_opts.netapp_cluster_opts
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def do_setup(self, context):
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self.library.do_setup(context)
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def check_for_setup_error(self):
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self.library.check_for_setup_error()
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def create_volume(self, volume):
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return self.library.create_volume(volume)
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def create_volume_from_snapshot(self, volume, snapshot):
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return self.library.create_volume_from_snapshot(volume, snapshot)
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def create_cloned_volume(self, volume, src_vref):
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return self.library.create_cloned_volume(volume, src_vref)
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def delete_volume(self, volume):
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self.library.delete_volume(volume)
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def create_snapshot(self, snapshot):
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self.library.create_snapshot(snapshot)
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def delete_snapshot(self, snapshot):
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self.library.delete_snapshot(snapshot)
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def get_volume_stats(self, refresh=False):
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return self.library.get_volume_stats(refresh,
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self.get_filter_function(),
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self.get_goodness_function())
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def get_default_filter_function(self):
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return self.library.get_default_filter_function()
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def get_default_goodness_function(self):
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return self.library.get_default_goodness_function()
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def extend_volume(self, volume, new_size):
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self.library.extend_volume(volume, new_size)
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def ensure_export(self, context, volume):
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return self.library.ensure_export(context, volume)
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def create_export(self, context, volume, connector):
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return self.library.create_export(context, volume)
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def remove_export(self, context, volume):
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self.library.remove_export(context, volume)
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def manage_existing(self, volume, existing_ref):
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return self.library.manage_existing(volume, existing_ref)
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def manage_existing_get_size(self, volume, existing_ref):
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return self.library.manage_existing_get_size(volume, existing_ref)
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def unmanage(self, volume):
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return self.library.unmanage(volume)
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def initialize_connection(self, volume, connector):
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return self.library.initialize_connection_iscsi(volume, connector)
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def terminate_connection(self, volume, connector, **kwargs):
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return self.library.terminate_connection_iscsi(volume, connector,
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**kwargs)
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def get_pool(self, volume):
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return self.library.get_pool(volume)
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def create_group(self, context, group):
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return self.library.create_group(group)
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def delete_group(self, context, group, volumes):
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return self.library.delete_group(group, volumes)
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def update_group(self, context, group, add_volumes=None,
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remove_volumes=None):
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return self.library.update_group(group, add_volumes=None,
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remove_volumes=None)
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def create_group_snapshot(self, context, group_snapshot, snapshots):
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return self.library.create_group_snapshot(group_snapshot, snapshots)
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def delete_group_snapshot(self, context, group_snapshot, snapshots):
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return self.library.delete_group_snapshot(group_snapshot, snapshots)
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def create_group_from_src(self, context, group, volumes,
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group_snapshot=None, snapshots=None,
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source_group=None, source_vols=None):
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return self.library.create_group_from_src(
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group, volumes, group_snapshot=group_snapshot, snapshots=snapshots,
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source_group=source_group, source_vols=source_vols)
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def failover_host(self, context, volumes, secondary_id=None, groups=None):
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return self.library.failover_host(context, volumes,
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secondary_id=secondary_id)
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def failover(self, context, volumes, secondary_id=None, groups=None):
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return self.library.failover(context, volumes, secondary_id)
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def failover_completed(self, context, secondary_id=None):
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return self.library.failover_completed(context, secondary_id)
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def migrate_volume(self, context, volume, host):
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return self.library.migrate_volume(context, volume, host)
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def revert_to_snapshot(self, context, volume, snapshot):
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return self.library.revert_to_snapshot(volume, snapshot)
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