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Ryan Liang 8641eed2ea VNX: delete the LUN from VNX backend 
Async migration is used in the process of creating a volume from a
snapshot and an internal temp snapshot is created.

Because the temp snapshot isn't deleted, the LUN hosting the temp
snapshot cannot be deleted from the VNX storage.

For example, a new volume, V2, is created from snapshot S1 of volume V1.
An internal temp snapshot S2 is created from copying S1. V1 now has two
snapshots, S1 and S2. Although we delete V1, V2 and S1 from Cinder,
S2 which is Cinder user-invisible isn't deleted and which causes V1 left
on VNX too.

The fix makes sure the snapshot S2 is deleted. Then the delay deletion
on V1 can be executed successfully.

Change-Id: Ib86729488ebfb0aea5d5d4f815a64e00258040e7
Closes-bug: #1794646
Conflicts:
  cinder/volume/drivers/dell_emc/vnx/driver.py
(cherry picked from commit b3a89dc187)
(cherry picked from commit a74945b068)
(cherry picked from commit 6e2e278f3c)
 		2020-08-06 02:25:09 +00:00
..
notes VNX: delete the LUN from VNX backend 2020-08-06 02:25:09 +00:00
source Imported Translations from Zanata 2018-03-01 06:36:23 +00:00
README.rst Fix release notes link 2017-07-25 14:24:18 -07:00
bug-1783790-multiattach-none-when-manage-volume-yu7du8yth78i0e6b.yaml Handle multiattach attribute when managing volumes 2019-03-26 23:01:43 -03:00

README.rst

Release notes

The release notes for a patch should be included in the patch. The intended audience for release notes include deployers, administrators and end-users.

A release note is required if the patch has upgrade or API impact. It is also required if the patch adds a feature or fixes a long-standing or security bug.

Please see https://docs.openstack.org/cinder/latest/contributor/releasenotes.html for more details.