Bug 636994

Summary:	[NetApp 6.1 bug] SCSI ALUA handler fails to handle ALUA transitioning properly
Product:	Red Hat Enterprise Linux 6	Reporter:	Mike Snitzer <msnitzer>
Component:	kernel	Assignee:	Mike Snitzer <msnitzer>
Status:	CLOSED ERRATA	QA Contact:	Storage QE <storage-qe>
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	6.1	CC:	bdonahue, bmarzins, coughlan, cward, dhoward, jwest, marting, mchristi, msnitzer, rajashekhar.a, revers, xdl-redhat-bugzilla
Target Milestone:	rc	Keywords:	OtherQA, ZStream
Target Release:	6.1
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel-2.6.32-84.el6	Doc Type:	Bug Fix
Doc Text:	Handling ALUA (Asymmetric Logical Unit Access) transitioning states did not work properly due to a faulty SCSI (Small Computer System Interface) ALUA handler. With this update, optimized state transitioning prevents the aforementioned behavior.	Story Points:	---
Clone Of:	619361	Environment:
Last Closed:	2011-05-19 12:05:17 UTC	Type:	---
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:	580566, 659610

Description Mike Snitzer 2010-09-23 21:53:47 UTC

May propose for 6.0.z based on feedback from NetApp.

+++ This bug was initially created as a clone of Bug #619361 +++

Description of problem:
The SCSI ALUA handler does not handle ALUA transitioning states properly.

--- Additional comment from msnitzer on 2010-09-23 17:48:54 EDT ---

Just posted v3, which is the result of upstream review on linux-scsi:
http://www.spinics.net/lists/linux-scsi/msg46988.html

Comment 1 RHEL Program Management 2010-10-05 01:57:50 UTC

This request was evaluated by Red Hat Product Management for inclusion
in a Red Hat Enterprise Linux maintenance release. Product Management has 
requested further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed 
products. This request is not yet committed for inclusion in an Update release.

Comment 2 Mike Snitzer 2010-10-08 17:34:50 UTC

Now staged in jejb's tree for 2.6.37 inclusion:
http://git.kernel.org/?p=linux/kernel/git/jejb/scsi-misc-2.6.git;a=commit;h=69723d178da97

Comment 3 Andrius Benokraitis 2010-10-13 13:20:11 UTC

*** Bug 619375 has been marked as a duplicate of this bug. ***

Comment 7 Aristeu Rozanski 2010-12-13 15:08:36 UTC

Patch(es) available on kernel-2.6.32-89.el6

Comment 10 Martin Prpič 2011-02-23 15:05:04 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:
Handling ALUA (Asymmetric Logical Unit Access) transitioning states did not work properly due to a faulty SCSI (Small Computer System Interface) ALUA handler. With this update, optimized state transitioning prevents the aforementioned behavior.

Comment 11 Chris Ward 2011-04-06 11:15:36 UTC

~~ Partners and Customers ~~

This bug was included in RHEL 6.1 Beta. Please confirm the status of this request as soon as possible.

If you're having problems accessing 6.1 bits, are delayed in your test execution or find in testing that the request was not addressed adequately, please let us know.

Thanks!

Comment 12 errata-xmlrpc 2011-05-19 12:05:17 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2011-0542.html