[Bug 1677982] Re: Request for including an upstream fix for emc vnx volume driver (Newton)

[Denny Zhao]

Sorry for the delayed response and thanks for the reminder. I will try to verify it this week. 
If the fix is merged, is there a way for 16.04 customer to apply this fix on their system?

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https://bugs.launchpad.net/bugs/1677982

Title:
  Request for including an upstream fix for emc vnx volume driver
  (Newton)

Status in cinder package in Ubuntu:
  Fix Released
Status in cinder source package in Yakkety:
  Fix Committed
Status in cinder source package in Zesty:
  Fix Released

Bug description:
  Issue:

  Detaching a volume from a nova instance sometimes not removing it from VNX storage group. It is caused by out-of-date cache for in VNX volume driver. Cache needs to be updated with correct info after creating a storage group.
  This fix was applied to Ocata and back ported to Newton upstream:
  https://review.openstack.org/#/c/429439/
  This ticket is a request for merge the upstream fix above to Ubuntu 16.10 (Newton package).

  How to Reproduce:
  1.Detach a volume from nova instance
  2.Use nova and cinder command to confirm the volume is detached.
  3.Use NaviSecCli to confirm the LUN is removed from the corresponding storage group.

  Actual results:
  The LUN is still in the Storage Group after detaching.

  Expected results:
  The LUN is removed from the Storage Group after detaching.

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