What release of xCAT are your running now.
If you move to another machine, then you have the benefit of having the old machine around for reference. I think I would dumpxCATdb ( please do not just copy files) on the old machine. run tabprune auditlog -a before you do. That is usually the biggest table, unless you have been pruning it or have auditlog turned off. Another good way to backup your configuration ( including the database) is run xcatsnap. I would install the new machine with Centos6 and go through the process documented for setting up the MN . I expect you might just want to copy /etc/hosts and /etc/resolv.conf from the previous MN. If hostname and ip address are the same then this should be pretty easily. Install xCAT - good time to go the latest release. restorexCATdb from your backup. run makedns -a run makedhpc -n run makedhcp -a Run rspconfig to update the MM with the new ssh keys run makeconservercf to update with the new credentials Run xdsh -K to your nodes to put out the new ssh keys. Depending on how your nodes are provisioned, There are probably directories under /install such as /install/custom you may want to copy to the new machine. If these are diskfull installed node, I think this is about all you need to do. If diskless images you might want to use the imgexport/imgimport commands, You might want to generate new images for Centos6 thoough. You are not going to be able to generate a Centos 5 image on a Centos6 MN. Lissa K. Valletta 8-3/B10 Poughkeepsie, NY 12601 (tie 293) 433-3102 From: Stuart Barkley <[email protected]> To: [email protected], Date: 07/18/2013 06:04 PM Subject: [xcat-user] Moving/Reinstalling xCAT Is there any documentation on the process of moving xCAT from one node to a new node (or just reinstalling on the same node). We need to move from CentOS 5 to CentOS 6 on our xCAT server (plus moving it from one physical machine to one in a different rack). Mostly I can treat it as a new installation, but there will be some things necessary to preserve from the old system: - The xCAT database. This is easy enough to preserve (dumpxCATdb or just moving the sqlite files). - The xCAT ssh keys (both server keys and compute nodes keys) - The xCAT internal CA data - Console server logs from /var/log/consoles (may be time to clean up some of the older log files) Most of this data seems to live in /etc/xcat (except master ssh keys in /etc/ssh). I also intend to address moving/coping data from /install to the new system. Is there any other data which needs to be preserved when moving the xCAT server to a new installation? - Any other important log files? - Anything else in /var? - Anything not from .rpm files in /opt/xcat? If I keep the same hostname/ip address is there anything I need to change in the database or other configuration files? Last time I needed to re-IP an xCAT system it took me a while to find various breakage using the old ip address. What is best practice in having the xCAT system in the xCAT database? I like having the console log files but don't want accidents happening (like rpower off on the xCAT server). Thanks, Stuart -- I've never been lost; I was once bewildered for three days, but never lost! -- Daniel Boone ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ xCAT-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/xcat-user
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