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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: nova
       Status: Fix Committed => Fix Released

** Changed in: nova
    Milestone: None => kilo-1

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https://bugs.launchpad.net/bugs/1372815

Title:
  Hyper-V tries to logout from iSCSI targets in use

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  When a volume is detached from a VM on Hyper-V, the Nova driver tries
  to disconnect from the iSCSI target, even if it's in use.

  https://github.com/openstack/nova/blob/master/nova/virt/hyperv/volumeops.py#L194

  This make sense when a volume (LUN) is associated with only one iscsi
  target, but this isn't always the case, you can have only one iSCSI
  target that exports more than one LUN to the hypervisor.

  We could provide a general solution that will only disconnect from the
  iSCSI target when there aren't more disks exposed to the hypervisor.

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