71 lines
2.8 KiB
Python
71 lines
2.8 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2012 Pedro Navarro Perez
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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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"""
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Helper methods for operations related to the management of volumes,
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and storage repositories for Windows 2012
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"""
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import time
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from nova.openstack.common import cfg
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from nova.openstack.common import log as logging
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from nova.virt.hyperv import basevolumeutils
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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class VolumeUtilsV2(basevolumeutils.BaseVolumeUtils):
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def __init__(self, conn_storage, conn_wmi):
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self._conn_storage = conn_storage
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self._conn_wmi = conn_wmi
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def login_storage_target(self, target_lun, target_iqn,
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target_portal):
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"""Add target portal, list targets and logins to the target."""
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separator = target_portal.find(':')
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target_address = target_portal[:separator]
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target_port = target_portal[separator + 1:]
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#Adding target portal to iscsi initiator. Sending targets
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portal = self._conn_storage.__getattr__("MSFT_iSCSITargetPortal")
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portal.New(TargetPortalAddress=target_address,
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TargetPortalPortNumber=target_port)
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#Connecting to the target
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target = self._conn_storage.__getattr__("MSFT_iSCSITarget")
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target.Connect(NodeAddress=target_iqn,
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IsPersistent=True)
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#Waiting the disk to be mounted. Research this
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time.sleep(CONF.hyperv_wait_between_attach_retry)
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def logout_storage_target(self, target_iqn):
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"""Logs out storage target through its session id."""
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target = self._conn_storage.MSFT_iSCSITarget(
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NodeAddress=target_iqn)[0]
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if target.IsConnected:
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session = self._conn_storage.MSFT_iSCSISession(
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TargetNodeAddress=target_iqn)[0]
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if session.IsPersistent:
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session.Unregister()
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target.Disconnect()
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def execute_log_out(self, session_id):
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session = self._conn_wmi.MSiSCSIInitiator_SessionClass(
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SessionId=session_id)[0]
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self.logout_storage_target(session.TargetName)
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