<div class="gmail_quote">On Wed, Jul 22, 2009 at 5:38 PM, Dag Stenstad <span dir="ltr"><<a href="mailto:stenstad@gmail.com">stenstad@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi, sorry for not answering the list, but I saw your message on the web archives of the mailinglist.<br><br>The Clariiiion multipath works in a way wich makes the paths ACTIVE/INACTIVE. Only 1 path is usually active. You were just unlucky to hit the wrong path. :-)<br>
<br>I have IBM blades connected to an EMC Clariiion SAN, without properitary modules/software. I boot from SAN.<br><br>You must install multipath-tools and if you want to boot multipath-tools-boot.<br><br>My /etc/multipath.conf:<br>
<br>defaults {<br> user_friendly_names yes<br>}<br><br>blacklist {<br> wwid 26353900f02796769<br> devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"<br> devnode "^hd[a-z][[0-9]*]"<br> devnode "^cciss!c[0-9]d[0-9]*[p[0-9]*]"<br>
device {<br> vendor DEC.*<br> product MSA[15]00<br> }<br>}<br><br>devices {<br> device {<br> vendor "DGC"<br> product "*"<br>
path_grouping_policy group_by_prio<br> getuid_callout "/lib/udev/scsi_id -g -u -s /block/%n"<br> prio_callout "/sbin/mpath_prio_emc /dev/%n"<br>
hardware_handler "1 emc"<br> features "1 queue_if_no_path"<br> no_path_retry 300<br> path_checker emc_clariion<br>
failback immediate<br> }<br>}<br><br>This is on Hardy, but not much has changed I think.<br><br>Emulex cards in these blades, but I have a simmilar machines using QLogic and other SANs as well, mostly IBM SANs.<br>
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</blockquote></div><br><br>Thanks for the reply. This gives me hope at least that maybe I'll revisit this issue. However, I did install multipath-tools but the strange thing is it did NOT create an /etc/multipath.conf file. So I'm not sure if I just need to create the file myself or if multipath is changed or broken in Ubuntu 9.04.<br>
<br>Brazen<br>