One of the huge benefits of going with Open Source solutions is the ability to get Enterprise grade solutions for decidedly non Enterprise costs. We have a fairly typical Web site set up with two load balancers, 2 Apache/Tomcat servers and 2 Postgres database boxes. We wanted to be able to ensure that in the event of a failure of any of those machines, we would be able to automatically recover and continue providing services.
Mas:
http://osssmb.wordpress.com/2008/12/16/high-availability-with-drbd-and-heartbeat-crm/
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