On Tue, Mar 13, 2007 at 04:32:27PM -0500, Michael Edwards wrote: >Ok, found my network connectivity problem. On my headnode, at install >it swapped the eth0 and eth1 ports with the physical ports. So there >are two ports Gig1 and Gig2, which it mapped to eth1 and eth0 >respectively.
well done working it all out... >After imaging the nodes, the ports were also switched on the nodes, so >that the port mapped to eth0 was the "second" port physically (which >wasn't connected). I plugged the second port and poof, everything >works like magic. > >Any ideas on how to prevent this from happening, or do I just need to >rewire everything? they came pre-working with Linux from Dell? cool. didn't know they did that. 2.4 kernels enumerate interfaces in 'Dell order'. 2.6 kernels flipped them. it's an old old problem... if Dell OS was 2.6 kernel based, then Dell possibly tagged eth's via MAC addresses in the ifcfg-eth* files, or rearranged them with ifnames or something in order to match their (completely arbitrary IMHO) port labels on the node. so you can figure out how they did it and reconstruct that if you like. Assuming you have <200 nodes then just recabling is probably easier and more future proof. cheers, robin ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Oscar-users mailing list Oscar-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oscar-users
