Hi Valeriy, Thank you for telling me about the private driver storage feature from Manila. I have reviewed the patch and it can definitely resolve the dummy destination volume issue I have during migration in Cinder. I do not deny that it is a good approach.
However, I need to put Patrick in the CC list to make him aware of this. During the previous Cinder IRC, we made an agreement that Cinder will go along this approach to consider all the common issues by introducing a cinder-internal tenant. Please check the cinder-spec: https://review.openstack.org/#/c/186232/. I guess cinder will go along this approach. @Patrick, I am not sure what our implementation is gonna be. Is it possible that similar data model can be used for cinder as it is in Manila? Please check https://review.openstack.org/#/c/176877/ 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 Valeriy Ponomaryov <vponomar...@mirantis.com> 05/27/2015 02:12 PM Please respond to "OpenStack Development Mailing List \(not for usage questions\)" <openstack-dev@lists.openstack.org> To "OpenStack Development Mailing List (not for usage questions)" <openstack-dev@lists.openstack.org> cc rodrigo.barbieri2...@gamil.com Subject Re: [openstack-dev] [Manila] About how to hide the dummy destination record during migration Hello Vincent Hou, We, Manila folks, are about to merge one of new features - "private driver storage" [1]. That is going to serve for not-user facing data storage related to any resource that can be reached by both - API and share driver. And in case of share migration, it will be possible to avoid creation of "temporary share" DB record and use this data storage for storing all required data per each share. Please, look at it, and provide feedback, whether such approach can be used in your case or not and why. [1] - https://review.openstack.org/#/c/176877/ Kind regards, Valeriy Ponomaryov On Wed, May 27, 2015 at 7:28 AM, Sheng Bo Hou <sb...@cn.ibm.com> wrote: Hi everyone working for Manila, This is Vincent Hou from IBM. I am working on all the migration issues in Cinder. I had one session for the Cinder migration issue in Vancouver and some of you folks attended it. The etherpad link is https://etherpad.openstack.org/p/volume-migration-improvement Per the issue that we had better not let the user see the target volume during migration when issuing command "cinder list", we can add an additional flag into the volume table, for example, "hidden", into it. The default value is 0, meaning that it will display for "cinder list". For the target volume during migration. We can set it to 1, so the user will not be able to see it with the command "cinder list". I think it is a straightforward approach we can go with. I just sync up with you folks, so that we can have a consistent way to resolve this issue in both Cinder and Manila. I just need to make sure we are on the same page. Is this solution OK with you folks? Especially @Rodrigo Barbieri and @Erlon Cruz, etc. Looking forward to hearing from you. Thanks. 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 __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
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