From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chandra Seetharaman Subject: Re: configure MD3000 Date: Thu, 12 Mar 2009 11:33:19 -0700 Message-ID: <1236882799.12841.7.camel@chandra-ubuntu> References: Reply-To: sekharan@linux.vnet.ibm.com, device-mapper development Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit 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 To my knowledge DELL DB3000 is a rdac based storage. Hence, you need to add a special device stanza to /etc/multipath.conf file. -------- devices { device { vendor "DELL" product "MD3000" hardware_handler "1 rdac" path_checker rdac failback immediate path_grouping_policy group_by_prio no_path_retry queue prio_callout "/sbin/mpath_prio_tpc /dev/%n" } } --------- Make the change, run "multipath -F" followed by "multipath" for the change to affect your configuration. What is your distro (RHEL or SLES) and what is the version ? For SLES you need to replace the prio_callout line by prio rdac chandra On Thu, 2009-03-12 at 12:53 -0400, Thomas Witzel wrote: > Hello all, > > I have a Dell MD3000 attached to an NX1950. It seems the MD3000 is > connected through a SAS 5/E card and uses the mptsas driver. My kernel > version is 2.6.27. > multipath -ll gives me: > > sdj: checker msg is "directio checker reports path is down" > 360022190009773680000214a495047cedm-5 , > [size=2.0T][features=0][hwhandler=0] > \_ round-robin 0 [prio=1][active] > \_ #:#:#:# sdd 8:48 [active][ready] > \_ round-robin 0 [prio=0][enabled] > \_ #:#:#:# sdj 8:144 [failed][faulty] > 360022190009773680000000000000000dm-0 , > [size=20M][features=0][hwhandler=0] > \_ round-robin 0 [prio=1][enabled] > \_ #:#:#:# sdg 8:96 [failed][ready] > sde: checker msg is "directio checker reports path is down" > 3600221900096f27d00000ab449504839dm-4 , > [size=2.0T][features=0][hwhandler=0] > \_ round-robin 0 [prio=1][active] > \_ #:#:#:# sdk 8:160 [active][ready] > \_ round-robin 0 [prio=0][enabled] > \_ #:#:#:# sde 8:64 [failed][faulty] > sdc: checker msg is "directio checker reports path is down" > 3600221900096f27d00000ab3495047fddm-2 , > [size=2.0T][features=0][hwhandler=0] > \_ round-robin 0 [prio=1][active] > \_ #:#:#:# sdi 8:128 [active][ready] > \_ round-robin 0 [prio=0][enabled] > \_ #:#:#:# sdc 8:32 [failed][faulty] > sdh: checker msg is "directio checker reports path is down" > 360022190009773680000214749504780dm-6 , > [size=2.0T][features=0][hwhandler=0] > \_ round-robin 0 [prio=1][active] > \_ #:#:#:# sdb 8:16 [active][ready] > \_ round-robin 0 [prio=0][enabled] > \_ #:#:#:# sdh 8:112 [failed][faulty] > sdl: checker msg is "directio checker reports path is down" > 360022190009773680000214c49504806dm-3 , > [size=1.1T][features=0][hwhandler=0] > \_ round-robin 0 [prio=1][active] > \_ #:#:#:# sdf 8:80 [active][ready] > \_ round-robin 0 [prio=0][enabled] > \_ #:#:#:# sdl 8:176 [failed][faulty] > 3600221900096f27d0000000000000000dm-1 , > [size=20M][features=0][hwhandler=0] > \_ round-robin 0 [prio=1][enabled] > \_ #:#:#:# sdm 8:192 [failed][ready] > > > How do I configure this to work correctly ? I'm sorry if that is a > redundant question, but I googled for about 8 hours now and couldn't > find anything conclusive. Also is there a manual/tutorial for this > somewhere ? > > Thank you, > Thomas > > -- > dm-devel mailing list > dm-devel@redhat.com > https://www.redhat.com/mailman/listinfo/dm-devel