You may want to brush up on the post about N-Tier Architecture if you don’t know what that is.
Today we’re going to look at a very basic resiliency pattern. In fact three of them. One for each tier of our classic three-tier architecture.
A server working by itself is simply just a server or single node. When you have two or more servers that are designed to do the same thing that act like one single system, this is a cluster.
Recovery Point Objective (RPO) and Recovery Time Objective (RTO) are important elements which guide major decisions when designing the architecture for a system but whats the difference between the two? Let’s take a look.
In a previous post N-Tier Architecture we looked at what that was. Great we know what N-Tier Architecture is but what is it good for and why should you use it?