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Bug 1215782

Summary: [docs] RHEV admin guide should reflect correct supported version of RHS
Product: Red Hat Enterprise Virtualization Manager Reporter: Marina Kalinin <mkalinin>
Component: DocumentationAssignee: Julie <juwu>
Status: CLOSED CURRENTRELEASE QA Contact: Tahlia Richardson <trichard>
Severity: high Docs Contact:
Priority: medium    
Version: 3.5.0CC: acanan, adahms, ecohen, gklein, juwu, lsurette, mkalinin, rbalakri, sabose, sasundar, yeylon
Target Milestone: ---   
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Hardware: Unspecified   
OS: Unspecified   
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Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2015-09-24 01:28:43 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1227301    

Description Marina Kalinin 2015-04-27 17:18:36 UTC
RHEV admin guide should reflect correct supported version of RHS.
We support gluster starting RHEV 3.3, but current RHS section in the guide does not seem to reflect correctly the supported version.

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.5/html/Administration_Guide/chap-Working_with_Red_Hat_Storage.html

Comment 2 Marina Kalinin 2015-04-27 17:30:16 UTC
Additional info:

Gluster storage domain is supported starting RHEV 3.3
https://bugzilla.redhat.com/show_bug.cgi?id=797961

We even verified below 3.6 bug which talks about almost the same thing.
https://bugzilla.redhat.com/show_bug.cgi?id=1202268

Comment 3 Aharon Canan 2015-04-28 06:52:51 UTC
Hi

We are supporting Gluster storage domain in RHEV since RHEV 3.3 (check comment #2 for extra details) 

I think the the working should be like below - 
Red Hat Gluster Storage is supported as Gluster storage domain starting RHEV version 3.3 and later. Therefore, the Compatibility Version of the cluster must be set to version 3.3 or later.

Comment 4 Sahina Bose 2015-04-28 10:22:08 UTC
The section in the guide "Working with Red Hat Storage" is about managing Gluster nodes from RHEV-M (not using it as storage domain).RHS version 3.0.4 now reports compatibility version 3.5, and can be added to a cluster of compatibility version 3.5. So the supported compatibility levels in the guide would need to be updated.

Note however that to use gluster volume as storage domain - you would need a cluster with this feature supported, i.e cluster >= 3.3

Comment 7 SATHEESARAN 2015-05-04 07:10:38 UTC
Here are few facts that I can provide :

1. GlusterFS storage domain is introduced from RHEV 3.3, earlier to that we used POSIXFS storage domain for gluster and that worked well. We tested the same fully

2. Managing RHGS ( gluster ) nodes, required cluster compatibility levels.
In other words, particular version of Red Hat Gluster Storage Node could be added to cluster with specific compatibility level. This compatibility matrix is captured in RHEV-RHS Guide - https://access.redhat.com/documentation/en-US/Red_Hat_Storage/3/html/Configuring_Red_Hat_Enterprise_Virtualization_with_Red_Hat_Storage/chap-Recommended_Best_Practices_and_Troubleshooting.html#Compatible_Versions

Hope that helps

Comment 9 Marina Kalinin 2015-05-11 21:13:47 UTC
(In reply to SATHEESARAN from comment #7)
> Here are few facts that I can provide :
> 
> 1. GlusterFS storage domain is introduced from RHEV 3.3, earlier to that we
> used POSIXFS storage domain for gluster and that worked well. We tested the
> same fully
> 
> 2. Managing RHGS ( gluster ) nodes, required cluster compatibility levels.
> In other words, particular version of Red Hat Gluster Storage Node could be
> added to cluster with specific compatibility level. This compatibility
> matrix is captured in RHEV-RHS Guide -
> https://access.redhat.com/documentation/en-US/Red_Hat_Storage/3/html/
> Configuring_Red_Hat_Enterprise_Virtualization_with_Red_Hat_Storage/chap-
> Recommended_Best_Practices_and_Troubleshooting.html#Compatible_Versions
Here you are talking about the UI part that manages storage nodes, right? Not RHEV hosts cluster and DC.

Comment 10 SATHEESARAN 2015-05-12 08:44:23 UTC
(In reply to Marina from comment #9)
> > This compatibility
> > matrix is captured in RHEV-RHS Guide -
> > https://access.redhat.com/documentation/en-US/Red_Hat_Storage/3/html/
> > Configuring_Red_Hat_Enterprise_Virtualization_with_Red_Hat_Storage/chap-
> > Recommended_Best_Practices_and_Troubleshooting.html#Compatible_Versions
> Here you are talking about the UI part that manages storage nodes, right?
> Not RHEV hosts cluster and DC.

I couldn't understand the difference between the two.

As you mentioned, I was mentioning about the UI part that manages nodes, but those nodes need to be in RHEV DC and cluster. We have few restrictions on that part, which is what explained in the compatibility matrix

Let me know, if I misunderstood your question

Comment 12 Julie 2015-05-29 00:51:47 UTC
Moving this docsQA. Please see comment8 and comment11.

Cheers,
Julie