Bug 1984464

Summary:	Inconsistency in Limits Documentation regards maximum supported memory
Product:	Red Hat Enterprise Virtualization Manager	Reporter:	Steffen Froemer <sfroemer>
Component:	Documentation	Assignee:	Eli Marcus <emarcus>
Status:	CLOSED CURRENTRELEASE	QA Contact:	rhev-docs <rhev-docs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	4.4.6	CC:	ctomasko, emarcus, lsurette, mhicks, srevivo
Target Milestone:	ovirt-4.4.10	Keywords:	Documentation, NoDocsQEReview
Target Release:	---
Hardware:	All
OS:	All
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-12-09 14:11:48 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	Docs	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Steffen Froemer 2021-07-21 13:59:18 UTC

Description of problem:
With BZ#1944723 the supported maximum of virtual machine memory is increased to 16TB. Current Supported maximum [1] is 6TB.
In addition, the host maximum is at 12TB. Overall this does not make sense and should be clarified.


Version-Release number of selected component (if applicable):
https://access.redhat.com/articles/906543

Comment 1 Sandro Bonazzola 2021-11-20 07:37:48 UTC

Moving out to 4.4.10 as 4.4.9 shipped live

Comment 2 Eli Marcus 2021-11-24 16:31:03 UTC

Steffen, 
I discovered that Jiri Hermann had already updated the RHV limits article last August, but left it in Draft status. 
I spoke with Jiri, and he agreed that we can now publish those updates - 
please check if this meets your approval - https://access.redhat.com/articles/906543

and then we can mark this bug as "closed - current release"

Comment 3 Steffen Froemer 2021-11-25 16:04:56 UTC

Hi Eli,
the VM limits are fine now. The host maximums are not. 

> Question: How to host a VM with 16TB on a host with 12TB to comply with support policy.

I would propose it to align with RHEL limits [1] as we have RHEL underneath.
So for RHEL7 based Hosts 12TB tested
and for RHEL8 based ones, 24TB tested.

Would that make sense?

Cheers, Steffen

[1]: https://access.redhat.com/articles/rhel-limits