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[Petrut Lucian <lpetrut@xxxxxxxxxxxxxxxxxxxxxx>]

Public bug reported:

When detaching volumes, Hyper-V decides whether the iSCSI target should
be disconnected or not by comparing the number of volumes being
disconnected and the total number of available LUNs of the according
iSCSI target.

This causes problems as TGT exports one extra reserved LUN. For this
reason, the according iSCSI targets won't be disconnected when a volume
exported by TGT is detached.

The fix consists in checking the disk types when counting the available
LUNs of a target.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1395063

Title:
  Hyper-V won't disconnect iSCSI targets created by tgt

Status in OpenStack Compute (Nova):
  New

Bug description:
  When detaching volumes, Hyper-V decides whether the iSCSI target
  should be disconnected or not by comparing the number of volumes being
  disconnected and the total number of available LUNs of the according
  iSCSI target.

  This causes problems as TGT exports one extra reserved LUN. For this
  reason, the according iSCSI targets won't be disconnected when a
  volume exported by TGT is detached.

  The fix consists in checking the disk types when counting the
  available LUNs of a target.

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