yahoo-eng-team team mailing list archive

[Jin Hui <jinhuihh@xxxxxxxxxx>]

Public bug reported:

When using Nova vmware driver to attach a raw iscsi volume (using 'RDMp'
style) to a VM, found the iscsi volume is attached to the VM's
VirtualIDEController. It's expected to attached to a scsi controller,
such as VirtualLsiLogicSASController.

In nova.virt.vmwareapi.volumeops.py, the method of '
_attach_volume_iscsi' gets the adapter type:

(vmdk_file_path, adapter_type, disk_type) =
vm_util.get_vmdk_path_and_adapter_type(hardware_devices)

The method get_vmdk_path_and_adapter_type will iterate all the hardware
devices, and return the adapter type of the first Virtual Disk it reads.
If the first virtual disk is not an iscsi disk, e.g., an IDE disk, then
VirtualIDEController will be returned as the adapter type, and the iscsi
volume will be attached to that incorrect controller.

To fix this issue, we perhaps need a new method to find a suitable
existing scsi controller for the volume, or to create a new controller
if there's no scsi controller right now.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1386511

Title:
  VMWare: attach a iscsi volume to a VirtualIDEController

Status in OpenStack Compute (Nova):
  New

Bug description:
  When using Nova vmware driver to attach a raw iscsi volume (using
  'RDMp' style) to a VM, found the iscsi volume is attached to the VM's
  VirtualIDEController. It's expected to attached to a scsi controller,
  such as VirtualLsiLogicSASController.

  In nova.virt.vmwareapi.volumeops.py, the method of '
  _attach_volume_iscsi' gets the adapter type:

  (vmdk_file_path, adapter_type, disk_type) =
  vm_util.get_vmdk_path_and_adapter_type(hardware_devices)

  The method get_vmdk_path_and_adapter_type will iterate all the
  hardware devices, and return the adapter type of the first Virtual
  Disk it reads. If the first virtual disk is not an iscsi disk, e.g.,
  an IDE disk, then VirtualIDEController will be returned as the adapter
  type, and the iscsi volume will be attached to that incorrect
  controller.

  To fix this issue, we perhaps need a new method to find a suitable
  existing scsi controller for the volume, or to create a new controller
  if there's no scsi controller right now.

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