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Bug 1075909

Summary:	[Docs] [Feature] Upgrading Data Center Compatibility Warning
Product:	Red Hat Enterprise Virtualization Manager	Reporter:	Zac Dover <zdover>
Component:	Documentation	Assignee:	Lucy Bopf <lbopf>
Status:	CLOSED CURRENTRELEASE	QA Contact:	ecs-bugs
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	3.4.0	CC:	acathrow, gklein, tdosek, yeylon
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	1090685 (view as bug list)		Environment:
Last Closed:	2014-08-25 05:57:04 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:	1090685

Description Zac Dover 2014-03-13 07:50:28 UTC

When you change the Data Center Compatibiltiy version from a version < 3.1 to a version > 3.1, a warning now appears, informing you that changing the data center compatibility version makes the data center unusable with versions of RHEV < 3.1. The warning also asks you if you really mean to do that. This is what the warning looks like:
 
"You are about to change the Data Center Compatibility Version. This will upgrade all the Storage Domains belonging to the Data Center, and make them unusable with versions older than 3.1. Are you sure you want to continue?"

The PRD bug is here:
https://bugzilla.redhat.com/show_bug.cgi?id=957939

Comment 1 Andrew Dahms 2014-03-26 00:46:35 UTC

A warning also appears when you decrease the compatibility level.

At the moment, the only mention of changing Cluster compatibility levels is a single topic [11406] found in the 'Post-Upgrade Tasks' section of the Administration Guide and Installation Guide. This topic needs to be added to 'Cluster Tasks' section and we need to add a line about the new warning.

Comment 2 Andrew Dahms 2014-04-03 04:58:00 UTC

It looks like this bug will consist of creating a data center of 3.3 compatibility or lower, and upgrading and downgrading it to see what the warning is.

Comment 3 Lucy Bopf 2014-04-04 04:54:50 UTC

Tested with 3.0 data center and cluster. Attempt to upgrade produced the warning above.

Added topic re changing data center compatibility version to Admin Guide under Data Center Tasks, and included the warning.

Added topic re changing cluster compatibility version to Admin Guide under Cluster Tasks, and included the warning.

Both topics above still appear in Post-Upgrade Tasks section of the guide, and will remain in duplicate there for the time being.

Comment 4 Lucy Bopf 2014-04-04 04:58:53 UTC

Also added the two topics re changing data center and cluster compatibility versions to the Install Guide.

Comment 5 Lucy Bopf 2014-04-24 00:59:09 UTC

Documentation Link
------------------------------
http://documentation-devel.engineering.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.4/html-single/Administration_Guide/index.html#Changing_the_Cluster_Compatibility_Version

http://documentation-devel.engineering.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtualization/3.4/html-single/Administration_Guide/index.html#Changing_the_Data_Center_Compatibility_Version

What Changed
------------------------------
The following topics were revised to include the new warning regarding compatibility change, and moved to the Cluster and Data Center chapters respectively.

Changing the Cluster Compatibility Version [ 11406-627601 ]

Changing the Data Center Compatibility Version [ 11407-627611 ]

Updated revision history: [ 30102-628849 ]

NVR
------------------------------
Red_Hat_Enterprise_Virtualization-Administration_Guide-3.4-web-en-US-3.4-19.el6eng

Moving to ON_QA.

Comment 6 Tomas Dosek 2014-04-30 10:41:50 UTC

VERIFIED - Documentation reflects the changes made and Warns users correctly about the result of datacenter compatibility mode upgrade and disability to revert this step if finished already.