What type of security system gives you the most security?

[Residents.of.Planet.Earth]

This is one way to do it:
http://en.wikipedia.org/wiki/High-availability_cluster

SirDice,

Thankyou for the link. I recognize that the subject matter (Clusters) is complex to my understanding and comprehension, but I think I get a picture of how Service(s) can be made available in High Availability Clusters with the help of redundant nodes, in case a particular node detects a hardware/software failure. The failing node then restarts the applications on the redundant node.

Very interesting subject.

Cheers
R.o.P.E