Why is it called bare metal server? All environments, virtualized or bare metal, are based on physical hardware. So, even virtualized environments (e.g., public cloud) possess physical hardware underneath. The term ‘bare metal’ is used mainly to differentiate a physically dedicated server from a virtualized environment and modern cloud hosting forms.
What does running on bare metal mean? The term bare metal refers to the fact that there is no operating system between the virtualization software and the hardware. The virtualization software resides on the “bare metal” or the hard disk of the hardware, where the operating system is usually installed. Bare metal isn’t only used to describe hypervisors.
What is bare metal vs VM? Resource dedication is the most significant difference between a bare metal and VM server: A bare metal server enables the user to rely on the entire hardware setup. A VM server requires you to share resources with other tenants.
What is bare metal in embedded? On a simpler note, bare-metal programming means writing an application directly on your hardware without using an external application programming interface i.e. without any operating system. We write embedded applications by directly accessing memory-map hardware registers of microcontrollers.