yahoo-eng-team team mailing list archive

[Alessandro Pilotti <1361419@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

On some versions of Windows Server 2008 R2 the SAN policy is set by
default to Online All, bringing online any disk, local or shared,
attached to the host.

Since only offline disks can be attached as passthrough disks to a
Hyper-V VM, this prevents Cinder volumes from being attached to
instances, resulting in an exception:

NotFound: Unable to find a mounted disk for target_iqn:
iqn.2010-10.org.openstack:volume-d8904a90-d189-4fc8-a7b4-4fcdc7309166

Since this can be an issue not easy to troubleshoot without knowing the
specific context, it'd be useful to include a reference to the SAN
policy in the exception message.

** Affects: nova
     Importance: Low
         Status: Triaged


** Tags: hyper-v

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https://bugs.launchpad.net/bugs/1361419

Title:
  Hyper-V driver should provide a more detailed exception in case block
  storage volumes cannot be mounted due to a invalid SAN policy

Status in OpenStack Compute (Nova):
  Triaged

Bug description:
  On some versions of Windows Server 2008 R2 the SAN policy is set by
  default to Online All, bringing online any disk, local or shared,
  attached to the host.

  Since only offline disks can be attached as passthrough disks to a
  Hyper-V VM, this prevents Cinder volumes from being attached to
  instances, resulting in an exception:

  NotFound: Unable to find a mounted disk for target_iqn:
  iqn.2010-10.org.openstack:volume-d8904a90-d189-4fc8-a7b4-4fcdc7309166

  Since this can be an issue not easy to troubleshoot without knowing
  the specific context, it'd be useful to include a reference to the SAN
  policy in the exception message.

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