Bug 523392

Summary: Add support for Sun 6540 storage arrays.
Product: Red Hat Enterprise Linux 5 Reporter: RHEL Program Management <pm-rhel>
Component: device-mapper-multipathAssignee: LVM and device-mapper development team <lvm-team>
Status: CLOSED ERRATA QA Contact: Cluster QE <mspqa-list>
Severity: high Docs Contact:
Priority: low    
Version: 5.4CC: agk, apevec, azarembo, bdonahue, bmarzins, bmr, christophe.varoqui, coughlan, dwysocha, edamato, egoggin, heinzm, jko, junichi.nomura, kueda, lmb, lmcilroy, mbroz, mchristi, mnovacek, mwahren, pm-eus, prockai, rdoty, tao, tranlan
Target Milestone: rcKeywords: FutureFeature, ZStream
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Enhancement
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2009-11-16 13:41:38 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: 515171    
Bug Blocks: 518493, 530243    

Description RHEL Program Management 2009-09-15 10:23:36 UTC
This bug has been copied from bug #515171 and has been proposed
to be backported to 5.4 z-stream (EUS).

Comment 6 Ben Marzinski 2009-09-18 18:53:40 UTC
Ported.

Comment 14 michal novacek 2009-10-21 17:07:43 UTC
old version: 0.4.7-30.el5
new version: 0.4.7-30.el5_4.1

I added the following piece to /etc/multipath.conf and restarted multipath:
       device {
               vendor                  "STK"
               product                 "FLEXLINE 380"
               getuid_callout          "/sbin/scsi_id -g -u -s /block/%n"
               prio_callout            "/sbin/mpath_prio_rdac /dev/%n"
               features                "0"
               hardware_handler        "1 rdac"
               path_grouping_policy    group_by_prio
               failback                immediate
               rr_weight               uniform
               no_path_retry           queue
               rr_min_io               1000
               path_checker            rdac
        }

I verified that running 'multipathd -k"show config"' ignores the configuration
with old version and recognizes it correctly for new version.

Customer confirmed that the issue is fixed.

Comment 15 Jong Bae KO 2009-10-24 06:36:16 UTC
Updated from the customer.
==========
Latest test using RHEL 5.4 with no modified rpm's  
kernel-2.6.18.164.2.1.el5
device-mapper-multipath-0.4.7-30.el5_4.2
kpartx-0.4.7-30.el5_4.2

multipath -ll -v2 returns expected result.
dd if=/dev/zero of=/mountpoint dumps data at expected speed.

Non modified initrd causes so many errors that it slows up the boot by four and a half minutes, when compared to running modified initrd:
mkinitrd -f /boot/initrd-$(uname -r).img $(uname -r) --preload=scsi_dh_rdac  
==========

Comment 21 errata-xmlrpc 2009-11-16 13:41:38 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/RHBA-2009-1515.html