From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hannes Reinecke Subject: Re: DM-MP, Xen 5.0.0 and NetApp Date: Wed, 01 Apr 2009 16:36:00 +0200 Message-ID: <49D37BD0.5090004@suse.de> References: Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: device-mapper development List-Id: dm-devel.ids Rodrigo Nascimento wrote: > Hi All, > =20 > I'm having problems to put the Multipathing tools to work correctly wit= h=20 > NetApp Cluster Solution. > =20 > I have a xenpool with 3 machines the multipathing are enabled on them,=20 > the HBA are Qlogic, two FAS3140 controllers in Cluster. I created a lun= =20 > to be a storage repository (SR), the lun is visible and was recognized=20 > on the 3 machines, but when we say to the XenServer to build a SR with=20 > this Lun, all I/O operations arrive to the FAS3140 by the non-optimized= =20 > path. > =20 > *XenServer multipath.conf* > =20 > defaults { > user_friendly_names no > } > devices { > device { > vendor "NETAPP" > product "LUN" > path_grouping_policy group_by_prio > getuid_callout "/sbin/scsi_id -g -u -s /block/= %n" > prio_callout "/sbin/mpath_prio_netapp /dev/%= n" > features "1 queue_if_no_path" > path_checker directio > failback immediate > } > } > =20 > We made two tests, one with prio_callout as /sbin/mpath_prio_alua and=20 > other with prio_callout as /sbin/mpath_prio_netapp, both returns the=20 > same results. > =20 What's the output of 'multipath -ll'? Looks like all paths are configured into one group here. Cheers, Hannes --=20 Dr. Hannes Reinecke zSeries & Storage hare@suse.de +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 N=FCrnberg GF: Markus Rex, HRB 16746 (AG N=FCrnberg)