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:	vdsm	Assignee:	Nir Soffer <nsoffer>
Status:	CLOSED DEFERRED	QA Contact:	mlehrer
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	4.0.3	CC:	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:
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.