From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Doug Griswold" Subject: md multipath w/ 2 hba's Date: Tue, 09 Sep 2003 14:14:07 -0400 Sender: linux-raid-owner@vger.kernel.org Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline To: linux-raid@vger.kernel.org List-Id: linux-raid.ids I don't know if this is exactly the right place to ask this question, but here it goes. I have installed 2 emulex hbas in a red hat as2.1 server. I first saw duplicate paths to each lun. Now I am trying to get failover paths to work so if one path goes down the other will pick up. What I am seeing is the path to /dev/sdj is the only one working. What I have done so far is edited my /etc/raidtab and put this entry in raiddev /dev/md0 raid-level multipath nr-raid-disks 2 chunk-size 4 persistent-superblock 1 device /dev/sdb raid-disk 0 device /dev/sdj raid-disk 1 1. I then issued mkraid /dev/md0 2. Made filesystem 3. edited fstab and mounted the filesystem but I don't have failover. Here is my output from /proc/mdstat md0 : active multipath sdj[0] sdb[1] 14226368 blocks [1/1] [U] Is what I'm trying to do feasible or am I completely off track here. If I am on track what have I missed. Thanks, Doug