What is virtualisation?

When we traditionally talk about a server we’re talking about a physical computer having a operating system with one or more application/s. 

Virtualization allows us to separate the hardware (the actual physical computer) from the operating system and applications. Through virtualization no longer are we limited to one physical computer having only one operating system. 

RTO vs RPO

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.