Dear Hannes, You are right ! many thanks ! I moved away multipath.conf from the etc folder and restarted multipath-tools and everything works fine : NDO (36006016017402600f2ed610b62cde011) dm-8 DGC ,RAID 5 [size=50G][features=1 queue_if_no_path][hwhandler=1 emc] \_ round-robin 0 [prio=2][active] \_ 2:0:0:1 sdd 8:48 [active][ready] \_ 5:0:0:1 sdj 8:144 [active][ready] \_ round-robin 0 [prio=0][enabled] \_ 2:0:1:1 sdg 8:96 [active][ready] \_ 5:0:1:1 sdm 8:192 [active][ready] NAGIOS (360060160174026000c984cc67acde011) dm-6 DGC ,RAID 5 [size=40G][features=1 queue_if_no_path][hwhandler=1 emc] \_ round-robin 0 [prio=2][active] \_ 2:0:1:2 sdh 8:112 [active][ready] \_ 5:0:1:2 sdn 8:208 [active][ready] \_ round-robin 0 [prio=0][enabled] \_ 2:0:0:2 sde 8:64 [active][ready] \_ 5:0:0:2 sdk 8:160 [active][ready] NPCD (360060160174026008cf8cef961cde011) dm-7 DGC ,RAID 5 [size=100G][features=1 queue_if_no_path][hwhandler=1 emc] \_ round-robin 0 [prio=2][active] \_ 2:0:1:0 sdf 8:80 [active][ready] \_ 5:0:1:0 sdl 8:176 [active][ready] \_ round-robin 0 [prio=0][enabled] \_ 2:0:0:0 sdc 8:32 [active][ready] \_ 5:0:0:0 sdi 8:128 [active][ready] Does it automatically recognize symbolic links (pointing to /dev/dm-*) in /dev/mapper/ folder ? -- Stéphane Neveu Ingénieur Opensource / RedHat Technical Manager THALES - Critical Information Systems DIVISION Security Solutions & Services / Server Mgmt Tél 01 73 17 03 15 -- -----Message d'origine----- De : dm-devel-bounces@xxxxxxxxxx [mailto:dm-devel-bounces@xxxxxxxxxx] De la part de Hannes Reinecke Envoyé : mercredi 14 septembre 2011 13:40 À : device-mapper development Objet : Re: multipathd & EMC Clariion CX-4 On 09/14/2011 11:58 AM, NEVEU Stephane wrote: > Hi all, > > I'm experiencing problems trying to set up a multipathd config with > a EMC Clariion CX-4 Storage. > > It seems that the CX4 is actually active/passive regarding SPs. My > server has QLogic Fiber Cards. My multipath-tools version is 0.4.8. > > Here is my multipath.conf : > > ## > > ## This is a template multipath-tools configuration file > > ## Uncomment the lines relevent to your environment > > ## > > defaults { > > user_friendly_names yes > > } > > blacklist { > > #devnode "*" > > devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*" > > devnode "^hd[a-z][[0-9]*]" > > devnode "^cciss!c[0-9]d[0-9]*[p[0-9]*]" > > } > > devices { > > device { > > vendor "DGC " > > product "*" > That is wrong. The configuration file doesn't allow for regular expressions or wildcards. Please use the correct name ('RAID 5') here. And 'directio' is most certainly wrong here. What's wrong with the default setting? It should work out of the box without configuration file at all ... Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxx +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg) -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
