50 lines
2.0 KiB
Python
50 lines
2.0 KiB
Python
# Copyright 2018 Cloudbase Solutions Srl
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#
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# 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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from nova import exception
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from oslo_log import log as logging
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from compute_hyperv.nova import constants
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from compute_hyperv.nova import volumeops
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LOG = logging.getLogger(__name__)
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class ClusterVolumeOps(volumeops.VolumeOps):
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def _load_volume_drivers(self):
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self.volume_drivers = {
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constants.STORAGE_PROTOCOL_SMBFS: volumeops.SMBFSVolumeDriver()
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}
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def _get_volume_driver(self, connection_info):
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driver_type = connection_info.get('driver_volume_type')
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if driver_type in [constants.STORAGE_PROTOCOL_ISCSI,
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constants.STORAGE_PROTOCOL_FC]:
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err_msg = (
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"The Hyper-V Cluster driver does not currently support "
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"passthrough disks (e.g. iSCSI/FC disks). The reason is "
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"that the volumes need to be available on the destination "
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"host side during an unexpected instance failover. In order "
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"to leverage your storage backend, you may either use the "
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"*standard* Nova Hyper-V driver or use the Cinder SMB volume "
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"driver (which may imply deploying CSVs on top of LUNs "
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"exposed by your storage backend).")
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LOG.error(err_msg)
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raise exception.VolumeDriverNotFound(driver_type=driver_type)
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return super(ClusterVolumeOps, self)._get_volume_driver(
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connection_info)
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