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Bug 1066135

Summary: [RFE][scale] Support more than 500 LVs per block storage domain
Product: Red Hat Enterprise Virtualization Manager Reporter: Simon Sekidde <ssekidde>
Component: ovirt-engineAssignee: Allon Mureinik <amureini>
Status: CLOSED CURRENTRELEASE QA Contact: mlehrer
Severity: high Docs Contact:
Priority: high    
Version: 3.2.0CC: amarchuk, amureini, gklein, iheim, lpeer, mjs, nsoffer, rbalakri, Rhev-m-bugs, scohen, srevivo, ssekidde, ylavi
Target Milestone: ovirt-4.0.4Keywords: FutureFeature, Performance
Target Release: ---Flags: sherold: Triaged+
Hardware: x86_64   
OS: Linux   
Fixed In Version: Doc Type: Enhancement
Doc Text:
Story Points: ---
Clone Of: 1062441 Environment:
Last Closed: 2016-10-17 13:08:49 UTC 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:
Bug Depends On: 1062441, 1081536    
Bug Blocks:    

Comment 2 Yaniv Kaul 2015-11-15 16:33:19 UTC
Any reason to keep this one open?

Comment 3 Allon Mureinik 2015-11-16 09:33:58 UTC
I think the AI here is, first of all, to stress test and find our current limitations.
Then, we can think if we care about it or not.

Comment 4 Gil Klein 2015-11-22 13:15:41 UTC
Allon, Isn't this a platform (lvm) limitation ?

Do we have the answer for comment #1 ?

Comment 5 Allon Mureinik 2015-11-23 13:37:18 UTC
(In reply to Gil Klein from comment #4)
> Allon, Isn't this a platform (lvm) limitation ?
There's been a world of change since RHEV 3.2 (RHEV 6.3) this was reported, both on the platform side and VDSM. We need to know the current limitations before escalating/redesigning/fixing/whatever

> Do we have the answer for comment #1 ?
No, see above.

Comment 6 mlehrer 2016-09-05 09:53:05 UTC
Sharing this bz as it was part of this related effort:

Comment 7 mlehrer 2016-09-20 14:48:10 UTC
Summary: Able to load 1000 disks

Env: 1 engine, 2 hosts, connected to iscsi storage via dedicated 10gbe network.  Management, VM, and Storage setup on separate vlans.
Version: vdsm-4.18.11-1.el7ev.x86_64, rhevm-4.0.2-0.2.rc1.el7ev.noarch

Populated an environment with 200 VMs totaling 1000 disks with 3 Storage Domains.
(Each VM has 5 thin disks, and of the 200 VMs 100 were running and in up state).

Able to successfully perform the following basic actions:

Create, Set to Maintenance, Activation of 5TB SD (ISCSI)
Create VM template consisting of 1 VM with 5 (thin) disks
Create 200 GB disk
Shut Down VM
Startup VM
Cold Disk Migration 5 disk
Click Manage Domain
Create VM from VM Template
Manage SD eg: Extend Storage Domain Space