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Bug 1126945

Summary: [RFE][Cinder] - Add multipath for LUNs
Product: [oVirt] ovirt-engine Reporter: Gary Lloyd <g.lloyd>
Component: RFEsAssignee: Tal Nisan <tnisan>
Status: CLOSED DEFERRED QA Contact: Avihai <aefrat>
Severity: high Docs Contact:
Priority: high    
Version: ---CC: baptiste.agasse, bugs, howey.vernon, scohen, srevivo, vvasilev, ykaul
Target Milestone: ---Keywords: FutureFeature, Performance
Target Release: ---Flags: ylavi: ovirt-future?
ylavi: planning_ack?
ylavi: devel_ack?
ylavi: testing_ack?
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Enhancement
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: Storage RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1172354    

Description Gary Lloyd 2014-08-05 16:11:53 UTC 
Since Ovirt 3.4 there is an option to create multipath links in the web console for storage domains but not Direct Luns. 

Would it be possible to have this option for Direct Lun as well ? We currently modify vdsm ourselves in order to achieve this and my colleague uploaded the code into gerrit last year after we attended the KVM Forum in Edinburgh. I think it was decided by the Ovirt team that multipathing should be defined at the engine level instead, but for some reason Direct Lun was forgotten about when this feature was implemented.

We currently have around 160 VMs in a production environment connected to Dell EqualLogic SANs, so having this feature present as a management option in the Ovirt would be very useful to us.

Thanks

Gary Lloyd
IT Systems
Keele University
United Kingdom
Comment 3 Yaniv Lavi 2016-11-07 11:49:38 UTC 
For anyone interested in this feature: using two direct LUNs that are the same LUN from different connections, you can setup multipath from within the guest.
For now this is the path we have to allow multipath to un-managed disks.
Comment 7 Yaniv Lavi 2018-06-04 08:43:31 UTC 
This will be solved via Cinder integration.
Comment 8 Michal Skrivanek 2020-03-18 15:49:57 UTC 
This bug didn't get any attention for a while, we didn't have the capacity to make any progress. If you deeply care about it or want to work on it please assign/target accordingly
Comment 9 Michal Skrivanek 2020-03-18 15:52:33 UTC 
This bug didn't get any attention for a while, we didn't have the capacity to make any progress. If you deeply care about it or want to work on it please assign/target accordingly
Comment 10 Michal Skrivanek 2020-04-01 14:48:41 UTC 
ok, closing. Please reopen if still relevant/you want to work on it.
Comment 11 Michal Skrivanek 2020-04-01 14:51:46 UTC 
ok, closing. Please reopen if still relevant/you want to work on it.