From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.12.11.20060308/8.12.11) with ESMTP id k4S26kL9014528 for ; Sat, 27 May 2006 22:06:46 -0400 Received: from nf-out-0910.google.com (nf-out-0910.google.com [64.233.182.188]) by mx3.redhat.com (8.13.1/8.13.1) with ESMTP id k4S26d5L023722 for ; Sat, 27 May 2006 22:06:40 -0400 Received: by nf-out-0910.google.com with SMTP id l36so102019nfa for ; Sat, 27 May 2006 19:06:39 -0700 (PDT) Message-ID: <5485940d0605271900r60918863yfe7d8992ea710125@mail.gmail.com> Date: Sun, 28 May 2006 03:00:39 +0100 From: "C'est Pierre" In-Reply-To: <5485940d0605271711g6d372400s3ab56c79e0488338@mail.gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <5485940d0605271711g6d372400s3ab56c79e0488338@mail.gmail.com> Subject: [linux-lvm] Re: alternate link / multi-pathing Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: linux-lvm@redhat.com Again, this time I am looking for some clues. I was trying to make a test, so I created a logical volume called 'lv01', mounted it under a directory and created a file on it, but somehow, when I am trying to unmount it, the umount command stops responding and all I get is these messages when I run dmesg: multipath: sdb: redirecting sector 4480 to another IO path multipath: only one IO path left and IO error. multipath: sdb1: rescheduling sector 4489 multipath: sdb: redirecting sector 4480 to another IO path multipath: only one IO path left and IO error. multipath: sdb1: rescheduling sector 4489 multipath: sdb: redirecting sector 4480 to another IO path multipath: only one IO path left and IO error. multipath: sdb1: rescheduling sector 4489 multipath: sdb: redirecting sector 4480 to another IO path multipath: only one IO path left and IO error. Any hints? the load average is going pretty crazy too: load average: 7.22, 5.00, 2.24 Thanks, Pierre On 5/28/06, C'est Pierre wrote: > Hello, > > How can I setup multi-pathing so that I can create a vg with a > physical device over two different fibre-channel links, so if one link > fails, LVM uses the other? > > I am using the term alternate link but its origins are in hp-ux. > > If you could point me to some documentation on it, I would appreciate it! > > Thanks, > Pierre >