Flashcards in Server Virtualisation Deck (6):
Describe full virtualisation.
Hypervisor simulates hardware to allow an unmodified guest OS to be run in isolation
Virtual guests aware that they have been virtualised. Guest source codes are modified with capabilities to communicate to the hypervisor (via Hypercall, i.e. API calls to hypervisor).
Describe OS-based virtualisation.
Lightweight "virtual machines (VMs)", called containers, which are realised using features provided by a modern Linux kernel. VMs share the same OS, system binaries and libraries.
What is a virtual machine (VM)?
A VM is defined as a representation of a physical machine by software that has its own set of virtual hardware upon which an operating system and applications can be loaded.
Virtualisation is realised through...