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[Vipin Balachandran <vbala@xxxxxxxxxx>]

This is not a valid cinder bug. Nova vmware driver has to create or use
an existing controller in the instance VM to attach the volume and it is
unrelated to the controller in volume backing. Please re-open this if
you disagree.

** No longer affects: cinder

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https://bugs.launchpad.net/bugs/1226543

Title:
  VMware: attaching a volume to the VM failed

Status in OpenStack Compute (Nova):
  Triaged

Bug description:
  I was using the image trend-tinyvm1-flat.vmdk. When I boot an VM and
  attach a volume to it. The following error message was shown:

  ================================n-cpu==================================

  2013-09-17 06:47:05.669 ERROR nova.openstack.common.rpc.amqp [req-fc4e0a9e-6bd5-45ac-b841-c89e17394603 admin demo] Exception during me
  ssage handling
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp Traceback (most recent call last):
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/openstack/common/rpc/amqp.py", line 461, in 
  _process_data
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     **args)
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/openstack/common/rpc/dispatcher.py", line 17
  2, in dispatch
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     result = getattr(proxyobj, method)(ctxt, **kwargs)
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/exception.py", line 89, in wrapped
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     payload)
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/exception.py", line 73, in wrapped
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     return f(self, context, *args, **kw)
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/compute/manager.py", line 243, in decorated_
  function
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     pass
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/compute/manager.py", line 229, in decorated_function
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     return function(self, context, *args, **kwargs)
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/compute/manager.py", line 271, in decorated_function
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     e, sys.exc_info())
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/compute/manager.py", line 258, in decorated_function
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     return function(self, context, *args, **kwargs)
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/compute/manager.py", line 3577, in attach_volume
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     context, instance, mountpoint)
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/compute/manager.py", line 3572, in attach_volume
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     mountpoint, instance)
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/compute/manager.py", line 3614, in _attach_volume
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     connector)
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/compute/manager.py", line 3604, in _attach_volume
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     mountpoint)
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/virt/vmwareapi/driver.py", line 290, in attach_volume
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     mountpoint)
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/virt/vmwareapi/volumeops.py", line 272, in attach_volume
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     self._attach_volume_vmdk(connection_info, instance, mountpoint)
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/virt/vmwareapi/volumeops.py", line 222, in _attach_volume_vmdk
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     unit_number=unit_number)
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/virt/vmwareapi/volumeops.py", line 71, in attach_disk_to_vm
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     self._session._wait_for_task(instance_uuid, reconfig_task)
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/opt/stack/nova/nova/virt/vmwareapi/driver.py", line 779, in _wait_for_task
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     ret_val = done.wait()
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/usr/local/lib/python2.7/dist-packages/eventlet/event.py", line 116, in wait
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     return hubs.get_hub().switch()
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp   File "/usr/local/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line 187, in switch
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp     return self.greenlet.switch()
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp NovaException: The attempted operation cannot be performed in the current state (Powered on).
  2013-09-17 06:47:05.669 TRACE nova.openstack.common.rpc.amqp

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