From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Anderson Subject: Re: NIC and HBA based multipathing Date: Mon, 12 Nov 2007 12:18:35 -0800 Message-ID: <20071112201835.GB23668@linux.vnet.ibm.com> References: <20071101215726.GB11002@linux.vnet.ibm.com> <342d47870711061308p77655083y7ac30a9e9e2a3b72@mail.gmail.com> <20071106222043.GA23178@linux.vnet.ibm.com> <342d47870711061433h6dce42baj705aca5ae7baa466@mail.gmail.com> <20071106230157.GA23800@linux.vnet.ibm.com> <342d47870711061746s64daeaa0wcb6adf060506686c@mail.gmail.com> <20071107025935.GA22697@us.ibm.com> <20071107050925.GA25156@linux.vnet.ibm.com> <342d47870711070707s7ac0fca2w1fdda12fb73fc548@mail.gmail.com> <342d47870711120954p56f41b30ob2c0956d11740244@mail.gmail.com> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <342d47870711120954p56f41b30ob2c0956d11740244@mail.gmail.com> 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 Scott Moseman wrote: > Maybe no one wants to open my attachment, here's an abbreviated > version of the "multipath -v" output... > > # multipath -v4 > load path identifiers cache > # > # all paths in cache : > # > #:#:#:# hda 3:0 [faulty] // > 30690a018f015191a6472441d1500f057 1:0:1:0 sdb 8:16 [active][ready] EQLOGIC / > 3:0:0:0 sdc 8:32 [faulty] EQLOGIC /100E-00 /2.3 > > Per my previous email, the "sdc" device is the iSCSI connection > through the NIC. The HBA connection, "sdb", is working fine. Based on the previous multipath -v4 output you provided (snippet shown below) it appears there is a problem accessing the device node of sdc as it complete sysfs_pathinfo and then appears to fail when it tries to open the device node. ... h:b:t:l = 3:0:0:0 tgt_node_name = Is /dev/sdc ok? Can you do a dd read of the device? -andmike -- Michael Anderson andmike@linux.vnet.ibm.com