Red Hat Bugzilla – Bug 1075909
[Docs] [Feature] Upgrading Data Center Compatibility Warning
Last modified: 2014-08-25 01:57:04 EDT
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
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.
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.
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.
Also added the two topics re changing data center and cluster compatibility versions to the Install Guide.
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.
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.