Ok, some more background first: System is an HP Proliant DL380 (or maybe DL580?), using Emulex fibre channel cards (don't know exact model off-hand). Running Red Hat Enterprise Linux 4, update 5. Device-mapper-multipath was version 0.4.5-21, just updated it to 0.4.5-27 There are 4 LUNs from an HP XP1024 disk array, each pathed to be visible on each fibre channel. LUN type is OPEN-E. Multipath now seems to accept the longer string returned by scsi_id, but it doesn't seem able to tell that certain disks are the same. Attached is the multipath.conf file I'm using and the output from "multipath -v3". If the attachments don't come through, I'll send separate emails with just the contents for each file. Any aide gladly received, I'm in over my head on this one. Thanks, Rick -----Original Message----- From: dm-devel-bounces@xxxxxxxxxx [mailto:dm-devel-bounces@xxxxxxxxxx] On Behalf Of malahal@xxxxxxxxxx Sent: Tuesday, January 29, 2008 5:19 PM To: dm-devel@xxxxxxxxxx Subject: Re: Multipath and getuid_callout issues with HP XP1024disk array Greene, Rick [rick.greene@xxxxxxxxxxxx] wrote: > I've done what I can to try to understand how all this works, but I keep > getting "error calling out /sbin/scsi_id -g -u -s /block/sda" when I run > the command "multipath -v2" > > > > I've tried a number of different things in the /etc/multipath.conf file, > but keep coming back to this same error. If I run the command manually I > get the following: > > > > # /sbin/scsi_id -g -u -s /block/sda > > 0HP______OPEN-E__________50060e80039c5a0400000000000000000000e100 > > > > What's missing? Any help greatly appreciated. You are not missing anything. The device id is too big to fit in multipath tools allocated memory. The program incorrectly prints that there is a problem while executing /sbin/scsi_id but in fact the problem lies in the program itself. You may have some old version of multipath tools. WWID_SIZE was set to 64 bytes and that is small for your device. Get the latest version where that macro is set to 128 or so. Hope that helps! --Malahal. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
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multipath.out
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