Bug 1233255

Summary:	ppc64le hosts should support only 3.6+ compatibility level
Product:	Red Hat Enterprise Virtualization Manager	Reporter:	Michal Skrivanek <michal.skrivanek>
Component:	vdsm	Assignee:	Martin Polednik <mpoledni>
Status:	CLOSED ERRATA	QA Contact:	Ilanit Stein <istein>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	3.6.0	CC:	bazulay, eedri, gklein, hannsj_uhl, lpeer, lsurette, mavital, michal.skrivanek, sherold, ycui, yeylon, ykaul
Target Milestone:	ovirt-3.6.0-rc
Target Release:	3.6.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	ovirt-3.6.0-5	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-03-09 19:41:35 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	Virt	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1201508, 1201513

Description Michal Skrivanek 2015-06-18 14:35:54 UTC

since ppc64le support is only introduced in 3.6 we plan to only support a 3.6 compatibility level. There's no point to support anything lower than that as there is no earlier vdsms and 3.4/3.5 ppc64 is not compatible either

Comment 1 Ilanit Stein 2015-10-08 12:11:09 UTC

How this bug should be verified please?

Comment 2 Michal Skrivanek 2015-10-08 12:34:22 UTC

you shouldn't be able to run in 3.5 compatibility level for ppc64le clusters, only 3.6

Comment 3 Ilanit Stein 2015-10-08 13:48:54 UTC

Verified with these flows:

1. Adding a new rhel 7.2 based ppc host to a datacenter/cluster 3.5 compatibility level for ppc64le fail during installation with these events:

Host host_mixed_1 is compatible with versions (3.6) and cannot join Cluster ilanit which is set to version 3.5.

Host host_mixed_1 moved to Non-Operational state as host CPU type is not supported in this cluster compatibility version or is not supported at all

2. Trying to change rhel 7.2 based ppc host cluster from 3.6 ppc cluster to 3.5 ppc cluster fail on:

Operation cancelled
Error while executing action: 

host_mixed_2:
Host CPU type is not supported in this cluster compatibility version or is not supported at all.

**Comment:
It is though possible to add a 3.5 compatibility level for ppc64le clusters.

Comment 6 errata-xmlrpc 2016-03-09 19:41:35 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2016-0362.html