Category Archives: SAP
Those who imagine that virtualization is an essential ingredient of cloud computing must have been mystified to discover from my post on Monday thatFacebook prefers not to use the technology. Instead of abstracting away the hardware layer as conventional wisdom suggests one should do in a cloud architecture, Facebook very much factors it in, with its insistence on designing its own custom-built database machine. What’s going on? In fact it’s replication not virtualization that counts in cloud computing — the ability to scale out across an elastic multitude of identical instances.