Date: Wed, 10 Sep 1997 19:55:32 -0700 (PDT) From: Doug White <dwhite@gdi.uoregon.edu> To: Robert Strickler <RStrickler@hq.koch.com> Cc: "'freebsd-questions@freebsd.org'" <freebsd-questions@FreeBSD.ORG> Subject: Re: Clustering/fail-over capability? Message-ID: <Pine.BSF.3.96.970910195225.15258R-100000@localhost> In-Reply-To: <c=US%a=_%p=KOCH%l=HQNS1-970910215125Z-781@hqns1.hq.koch.com>
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On Wed, 10 Sep 1997, Robert Strickler wrote: > Is there anything built-in to FreeBSD similar to allow us to set up an > identical secondary server and when the primary server stops > communicating, have it take over (with the failed servers IP addresses) > and try and shutdown the primary server? That's pretty complex functionality for lowly PCs :) To be honest, no, there's no specific functionality built into the core system to do this nicely and cleanly. However, doing automatic takeover isn't done nicely and cleanly. You have to define what is meant by `stops communicating', and how to remotely shut down a machine without creating a gigantic security hole in the process. (If you can do this securely, the UPS people want to talk to you.) Mirroring disks is pretty easy to do, the built-in disk striping driver (ccd) does this already. But the rest is pretty tricky. You might consider contacting hackers@freebsd.org and/or searching the mail archives for past discussion on this topic. Good luck! Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major Spam routed to /dev/null by Procmail | Death to Cyberpromo
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