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Linux heartbeat and long-haul networks

Subject: Linux heartbeat and long-haul networks
From: richard.pieri-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org (Richard Pieri)
Date: Thu, 10 Feb 2011 11:01:00 -0500

Does anyone have experience with Linux heartbeat over long-haul networks?  I'm looking at setting up a failover between two sites.  Specifically:

I have two Xen dom0 servers currently in the same rack, using DRBD-backed logical volumes for domU images.  They currently use a manual switchover procedure.  What I want to do is move one of the two dom0 servers to an off-site data center and set up an automatic failover for my domUs.  The latter should be easy with Pacemaker but my concern is heartbeat latency causing spurious failover.

--Rich P.

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