Hi all,

https://bugs.launchpad.net/cinder/+bug/1255622
For this bug, I have added some comments to explain why the "orphaned 
volume" that ends up in the end of the migration.
@John Griffith, I hope this can resolve your confusion a bit.

Best wishes,
Vincent Hou (侯胜博)

Staff Software Engineer, Open Standards and Open Source Team, Emerging 
Technology Institute, IBM China Software Development Lab

Tel: 86-10-82450778 Fax: 86-10-82453660
Notes ID: Sheng Bo Hou/China/IBM@IBMCN    E-mail: sb...@cn.ibm.com 
Address:3F Ring, Building 28 Zhongguancun Software Park, 8 Dongbeiwang 
West Road, Haidian District, Beijing, P.R.C.100193
地址:北京市海淀区东北旺西路8号中关村软件园28号楼环宇大厦3层 邮编:100193



Jay S Bryant/Rochester/IBM@IBMUS 
02/07/2015 07:50 AM

To
Weekly Cinder Meeting
cc
Theresa Backlund/Rochester/IBM@IBMUS, Jacob Morlock/Rochester/IBM@IBMUS, 
Peter Wassel/Endicott/IBM@IBMUS
Subject
Fw: [cinder] Volume Replication and Migration bug triage ...






--------------------------------------------------------------------
 All the world's a stage and most of us are desperately unrehearsed.
                   -- Sean O'Casey
--------------------------------------------------------------------
----- Forwarded by Jay S Bryant/Rochester/IBM on 02/06/2015 05:47 PM -----

From:   "Jay S. Bryant" <jsbry...@electronicjungle.net>
To:     "openStack Development Mailing List (not for usage questions)" 
<openstack-dev@lists.openstack.org>, Jay S Bryant/Rochester/IBM@IBMUS
Date:   02/06/2015 05:46 PM
Subject:        [cinder] Volume Replication and Migration bug triage ...
Sent by:        Jay Bryant <jungleb...@gmail.com>



All,

In discussion with Mike Perez earlier this week the following bugs were 
highlighted in Volume Migration and Volume Replication.  IBM is focusing 
on investigating and resolving these bugs.

I will be putting out updates as we progress towards resolution of these 
issues.

Replication:

https://bugs.launchpad.net/cinder/+bug/1390001 -- Investigated by Tao and 
found to be Invalid
https://bugs.launchpad.net/cinder/+bug/1384040 -- assigned to Tao
https://bugs.launchpad.net/cinder/+bug/1372292 -- assigned to Tao
https://bugs.launchpad.net/cinder/+bug/1370311 -- Requires multi-pool 
scheduler awareness and replica promote supporting multiple pools.  BP 
opened:  
https://blueprints.launchpad.net/cinder/+spec/storwize-support-muli-pool-within-one-backend-relative-features

https://bugs.launchpad.net/cinder/+bug/1383524 -- Currently assigned to 
Ronen with updates from Avishay.  Have a question in to Avishay to see if 
he can keep investigating.

Migration:

https://bugs.launchpad.net/cinder/+bug/1404013 -- Fix released for this.
https://bugs.launchpad.net/cinder/+bug/1403916 -- Question out to the 
reporter to see if this is still an issue. (LVM)
https://bugs.launchpad.net/cinder/+bug/1403912 -- Question out to the 
reporter to see if this is still an issue. (LVM)
https://bugs.launchpad.net/cinder/+bug/1403904 -- Marked Invalid
https://bugs.launchpad.net/cinder/+bug/1391179 --  Assigned to Alon Marx 
as this is an issue that was seen on XIV.
https://bugs.launchpad.net/cinder/+bug/1283313 -- Avishay was looking into 
this.  Asked if he still is doing so.
https://bugs.launchpad.net/cinder/+bug/1255957 -- Currently marked 
incomplete.  May warrant futher investigation.
https://bugs.launchpad.net/cinder/+bug/1391172 -- Fix released
https://bugs.launchpad.net/cinder/+bug/1403902 -- A number of patches have 
been proposed around this one.  Will follow up to understand if it is 
still a problem.
https://bugs.launchpad.net/cinder/+bug/1255622 -- John was the last one 
looking at this.  Appears to work in some situations.
https://bugs.launchpad.net/cinder/+bug/1398177 -- Assigned to Vincent Hou
https://bugs.launchpad.net/cinder/+bug/1308822 -- Assigned to Tao or Li 
Min.
https://bugs.launchpad.net/cinder/+bug/1278289 -- Assigned to Jay.  Will 
investigate
https://bugs.launchpad.net/cinder/+bug/1308315.-- Tao is investigating but 
hasn't been able to recreate.

While triaging all the issues I updated the ones for migration with a 
'migration' tag and updated the replication ones with a 'replication' tag.

If you have any questions/concerns about this, please let me know.  
Otherwise we will work towards cleaning these up.

Thanks!
Jay


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