Virtualization
From Consultancy.EdVoncken.NET
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From Wikipedia:
In computing, virtualization is a broad term that refers to the abstraction of computer resources. One useful definition is "a technique for hiding the physical characteristics of computing resources from the way in which other systems, applications, or end users interact with those resources. This includes making a single physical resource (such as a server, an operating system, an application, or storage device) appear to function as multiple logical resources; or it can include making multiple physical resources (such as storage devices or servers) appear as a single logical resource."
Xen
The (Open Source) Xen hypervisor offers a powerful, efficient and secure feature set for virtualization of x86, x86_64, IA64, PowerPC and other CPU architectures. It is included with industry-standard RHEL and CentOS distributions.
KVM
The Linux kernel has moved from Xen to KVM (Kernel Virtual Machine). It requires CPU support for virtualization, and has a much smaller code base.
VMware
VMware is a commercial virtualization product.
Interesting reading:
- VMguru
- RTFM Education - Free RTFM Guide: “What’s New & Different in Vi3.5″
- VMug, the Dutch VMware User Group