From mboxrd@z Thu Jan 1 00:00:00 1970 From: Erez Zilber Subject: About using multipath in SLES 10 Date: Mon, 28 Jan 2008 17:33:28 +0200 Message-ID: <479DF5C8.6050909@Voltaire.COM> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: "dm-devel@redhat.com" List-Id: dm-devel.ids Hi, I guess that I'm missing something: I started /etc/init.d/multipathd on SLES 10 sp1 and now I see the following devices: seed1:~ # multipath -ll SATA_HDS728080PLA380_PFDB32E8TPKR5Mdm-0 ATA,HDS728080PLA380 [size=77G][features=0][hwhandler=0] \_ round-robin 0 [prio=1][active] \_ 3:0:0:0 sdb 8:16 [active][ready] 3600c0ff000d508d7def2894702000000dm-1 DotHill,R/Evo 2730-2R [size=82G][features=0][hwhandler=0] \_ round-robin 0 [prio=1][active] \_ 16:0:0:0 sdc 8:32 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 17:0:0:0 sdd 8:48 [active][ready] 3600c0ff000d508d7dff2894701000000dm-2 DotHill,R/Evo 2730-2R [size=82G][features=0][hwhandler=0] \_ round-robin 0 [prio=1][active] \_ 18:0:0:0 sde 8:64 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 19:0:0:0 sdf 8:80 [active][ready] I understand that sdc & sdd are mapped to dm-1. However, I don't understand how to use dm-1. For example, I can't run INQUIRY on it: seed1:~ # sg_inq /dev/dm-1 Both SCSI INQUIRY and fetching ATA information failed on /dev/dm-1 I guess that I'm doing something wrong here... What should I do? Thanks, Erez