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Bug 434988

Summary: [RFE] Include mpath_prio_hp_sw in device-mapper-multipath
Product: Red Hat Enterprise Linux 5 Reporter: Bryn M. Reeves <bmr>
Component: device-mapper-multipathAssignee: Dave Wysochanski <dwysocha>
Status: CLOSED ERRATA QA Contact: Corey Marthaler <cmarthal>
Severity: medium Docs Contact:
Priority: medium    
Version: 5.1CC: agk, bmarzins, bmr, christophe.varoqui, dwysocha, edamato, egoggin, heinzm, hgarcia, junichi.nomura, kueda, lmb, mbroz, pep, prockai, tao, tranlan
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2009-01-20 22:09:11 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:
Attachments:
Description Flags
Backported patch for rhel5.3 - requires minor change to spec file as well
none
spec file used to test this patch - updated from device-mapper-multipath-0.4.7-17 spec file none

Description Bryn M. Reeves 2008-02-26 18:40:39 UTC 
Description of problem:
RHEL5 now supports the kernel hardware handler for the HP MSA/HSV active/passive
storage controllers. Upstream multipath-tools now has a path prioritiser for
these arrays as well.

This was merged in this commit:

http://git.kernel.org/gitweb.cgi?p=linux/storage/multipath-tools/.git;a=commit;h=682d66d9fd97cc3b821bfe390c34f6ea5717c14b

    "All paths from a controller with HP Active/Standby firmware
    should really be grouped according to their status; otherwise
    the path switching will not work properly or you can use only
    one path to that array.
    This patch adds a new priority checker 'mpath_hp_sw' which
    will allow these paths to be grouped accordingly."

Version-Release number of selected component (if applicable):
0.4.7-16.el5

How reproducible:
100%

Steps to Reproduce:
1. # rpm -ql device-mapper-multipath | grep mpath_prio_hp_sw
  
Actual results:
No path prioritiser for these SANs.

Expected results:
/sbin/mpath_prio_hp_sw

Additional info:
Comment 2 RHEL Program Management 2008-06-02 20:16:51 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 3 Dave Wysochanski 2008-07-09 20:14:36 UTC 
Created attachment 311414 [details]
Backported patch for rhel5.3 - requires minor change to spec file as well
Comment 4 Dave Wysochanski 2008-07-09 20:16:02 UTC 
Created attachment 311415 [details]
spec file used to test this patch - updated from device-mapper-multipath-0.4.7-17 spec file
Comment 5 Ben Marzinski 2008-07-12 01:24:49 UTC 
Patch applied. Thanks.
Comment 8 errata-xmlrpc 2009-01-20 22:09:11 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/RHEA-2009-0232.html