<div>multipath -ll output:</div> <div> </div> <div>[root@CMPXEN02 ~]# multipath -ll 360a98000572d42774e6f4f2f682f6330dm-0 NETAPP,LUN [size=20G][features=1 queue_if_no_path][hwhandler=0] \_ round-robin 0 [prio=32][active] \_ 0:0:0:0 sda 8:0 [active][ready] \_ 0:0:1:0 sdb 8:16 [active][ready] \_ 1:0:0:0 sdd 8:48 [active][ready] \_ 1:0:1:0 sde 8:64 [active][ready] \_ 2:0:0:0 sdh 8:112 [active][ready] \_ 3:0:0:0 sdi 8:128 [active][ready] \_ 3:0:1:0 sdj 8:144 [active][ready] \_ 2:0:1:0 sdk 8:160 [active][ready] \_ round-robin 0 [prio=7][enabled] \_ 0:0:2:0 sdc 8:32 [active][ready] \_ 1:0:2:0 sdf 8:80 [active][ready] \_ 1:0:3:0 sdg 8:96 [active][ready] \_ 3:0:2:0 sdl 8:176 [active][ready] \_ 3:0:3:0 sdn 8:208 [active][ready] \_ 0:0:3:0 sdo 8:224 [active][ready] \_ 2:0:3:0 sdp 8:240 [active][ready] \_ round-robin 0 [prio=0][enabled] \_ 2:0:2:0 sdm 8:192 [failed][faulty] </div> <div class="gmail_quote">On Wed, Apr 1, 2009 at 11:36 AM, Hannes Reinecke <<a href="mailto:hare@suse.de">hare@suse.de</a>> wrote: <blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"> <div class="im">Rodrigo Nascimento wrote: <blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Hi All, I'm having problems to put the Multipathing tools to work correctly with NetApp Cluster Solution. I have a xenpool with 3 machines the multipathing are enabled on them, the HBA are Qlogic, two FAS3140 controllers in Cluster. I created a lun to be a storage repository (SR), the lun is visible and was recognized on the 3 machines, but when we say to the XenServer to build a SR with this Lun, all I/O operations arrive to the FAS3140 by the non-optimized path. *XenServer multipath.conf* 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 } } We made two tests, one with prio_callout as /sbin/mpath_prio_alua and other with prio_callout as /sbin/mpath_prio_netapp, both returns the same results. </blockquote> </div>What's the output of 'multipath -ll'? Looks like all paths are configured into one group here. Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage <a href="mailto:hare@suse.de" target="_blank">hare@suse.de</a> +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Markus Rex, HRB 16746 (AG Nürnberg) -- dm-devel mailing list <a href="mailto:dm-devel@redhat.com" target="_blank">dm-devel@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/dm-devel" target="_blank">https://www.redhat.com/mailman/listinfo/dm-devel</a> </blockquote></div> -- Rodrigo Nascimento