Bug 747938

Summary:	Point out that md-raid is incomaptible with cluster in lvm.conf
Product:	Red Hat Enterprise Linux 6	Reporter:	David Juran <djuran>
Component:	lvm2	Assignee:	Jonathan Earl Brassow <jbrassow>
Status:	CLOSED ERRATA	QA Contact:	Cluster QE <mspqa-list>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	6.2	CC:	agk, cmarthal, dwysocha, heinzm, jbrassow, mbroz, prajnoha, prockai, thornber, zkabelac
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	lvm2-2.02.95-8.el6	Doc Type:	Bug Fix
Doc Text:	No documentation needed.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-06-20 15:00:18 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description David Juran 2011-10-21 13:02:01 UTC

Description of problem:
 /etc/lvm/lvm.conf has gotten the new option mirror_segtype_default which can be used to enable the new MD raid backend but if I'm not mistaken, this functionality is labelled as tech-preview in RHEL6.2. Since /etc/lvm/lvm.conf is very well annotated, I think it would be good to include a comment in that file that points out the MD-raid is tech preview

Version-Release number of selected component (if applicable):
lvm2-2.02.87-3

Comment 2 David Juran 2011-10-21 13:49:18 UTC

Discussing this with Jon Brassow, the note about tech preview is probably superflous but a note should be made that MD is incompatible with cluster

Comment 3 RHEL Program Management 2011-10-25 05:48:14 UTC

Since RHEL 6.2 External Beta has begun, and this bug remains
unresolved, it has been rejected as it is not proposed as
exception or blocker.

Red Hat invites you to ask your support representative to
propose this request, if appropriate and relevant, in the
next release of Red Hat Enterprise Linux.

Comment 5 Jonathan Earl Brassow 2012-04-27 20:56:38 UTC

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
No documentation needed.

Comment 9 Corey Marthaler 2012-05-09 20:45:24 UTC

Fix verified in the latest lvm.conf.

  #            This mirror implementation is not cluster-aware and cannot be
  #            used in a shared (active/active) fashion in a cluster.

2.6.32-269.el6.x86_64
lvm2-2.02.95-8.el6    BUILT: Wed May  9 03:33:32 CDT 2012
lvm2-libs-2.02.95-8.el6    BUILT: Wed May  9 03:33:32 CDT 2012
lvm2-cluster-2.02.95-8.el6    BUILT: Wed May  9 03:33:32 CDT 2012
udev-147-2.41.el6    BUILT: Thu Mar  1 13:01:08 CST 2012
device-mapper-1.02.74-8.el6    BUILT: Wed May  9 03:33:32 CDT 2012
device-mapper-libs-1.02.74-8.el6    BUILT: Wed May  9 03:33:32 CDT 2012
device-mapper-event-1.02.74-8.el6    BUILT: Wed May  9 03:33:32 CDT 2012
device-mapper-event-libs-1.02.74-8.el6    BUILT: Wed May  9 03:33:32 CDT 2012
cmirror-2.02.95-8.el6    BUILT: Wed May  9 03:33:32 CDT 2012

Comment 11 errata-xmlrpc 2012-06-20 15:00:18 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.

http://rhn.redhat.com/errata/RHBA-2012-0962.html