Date: Mon, 26 Sep 2011 13:52:22 +0800 From: Gi Dot <gadidot@gmail.com> To: freebsd-net@freebsd.org Subject: Data centers failure proof with CARP. Message-ID: <CAHGGWY60WPe72q3SOYiysaqFt6e%2BQBq=jVuJWryJsubo3ngqgg@mail.gmail.com>
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Hi, Is it a good idea to use CARP to manage data centers failover? Say for instance I have a total of 3 public IPs: Data center A (master CARP): x.x.x.x Data center B (backup CARP): y.y.y.y CARP Virtual IP: z.z.z.z If there is a network outage occurs at data center A, all traffic to IP z.z.z.z will be routed to IP y.y.y.y. But I guess this will only work if both x.x.x.x and y.y.y.y IPs belong to the same subnet? If this is not a recommended idea (or not feasible), I would appreciate for any suggestion to make my website 'data centers failure proof'. Thanks. -- dot.
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