Bug 1386732

Summary: [scale] Unable to add more disks "VolumeCreationError: Error creating a new volume" (limit of ~1950 disks per SD)
Product: Red Hat Enterprise Virtualization Manager Reporter: nijin ashok <nashok>
Component: vdsmAssignee: Nir Soffer <nsoffer>
Status: CLOSED DEFERRED QA Contact: mlehrer
Severity: high Docs Contact:
Priority: unspecified    
Version: 4.0.3CC: bugs, gveitmic, hannsj_uhl, lsurette, mlehrer, nashok, nsoffer, ratamir, srevivo, tnisan, ycui, ylavi
Target Milestone: ---Keywords: Performance
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 1373118 Environment:
Last Closed: 2018-08-06 08:43:10 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:
Embargoed:
Bug Depends On: 1373118, 1432039    
Bug Blocks:    

Comment 3 Nir Soffer 2016-10-20 17:13:42 UTC 
How to test:

1. Create 3 raw disks on block storage

Check the metadata slot mapping using:

$ lvs -o tags vgname | grep MD_
MD_4
MD_5
MD_6

2. Delete the disk using slot 6 (MD_6):

Verify that the MD_6 is not used:

$ lvs -o tags vgname | grep MD_
MD_4
MD_6

3. Create new disk

Verify that slot 6 is used by the new disk

$ lvs -o tags vgname | grep MD_
MD_4
MD_5
MD_6
Comment 7 Yaniv Kaul 2016-12-22 21:06:04 UTC 
*** Bug 1373118 has been marked as a duplicate of this bug. ***
Comment 10 Nir Soffer 2018-01-07 16:49:41 UTC 
Do we need to support more than 1948 lvs per vg?
Comment 11 Nir Soffer 2018-01-07 16:58:15 UTC 
Because of bug 1432039, we disable refreshes for the leases volume. If we want to
make the leases volume extendable, we need to add a mechanism for refreshing it
when trying to access a lease after the end of the device. Same way we do for
the metadata volume now.

Adding this bug as dependency.