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Thursday TECHtionary.com TECH-Tip – Virtualization – Processor & StorageThe animated TECH-Tip tutorial is available at http://www.techtionary.com Summary CPU-Central Processor Virtualization or Virtualization allows one computer or storage system to emulate as multiple “virtual” computer or storage systems. Details CPU-Central Processor Virtualization or Virtualization allows one computer system to emulate as multiple “virtual” computer systems. A VMM-Virtual Machine Monitor also known as a hypervisor is a system of system designed to control execution processes of multiple guest operating systems on a single machine. The term host refers to the execution context of the VMM. World switch refers to switching or movement between host and guest. Guest control is the appearance by the user of complete control over all machine systems such as memory, CPU and other peripheral devices (disk, tape, communications, etc.) Shown here are the basic functions of a CPU-Central Processing Unit. CPUs provide software for Floating Point Unit Non-integers, Vector Processing Unit Graphics Accelerator, Arithmetic Logic Unit, Memory Management (cache memory), Add-divide/multiply as well as provide data management to and from disk, tape, keyboard, screen, communications and other devices. In a distributed network architecture, multiple computer servers can be combined into one "virtualized" system operating (running) different applications, operating systems and network connections. Virtualization can delegate IT-Information Technology tasks such as server consolidation/decentralization, communications gateways, enhanced distributed processing such as graphics rendering, legacy migration and security. Home users could create virtual “partitions” isolating multiple user environments such as adding (dedicating) additional resources to a PC game or entertainment systems personal video recorder-type environments. In addition, virtualization can isolate (partition) incoming threats such viruses or spyware. The Kernel is software controlling applications program access to systems hardware and software resources such as CPU processing time, memory management, read/write disk drive access, network connections, displays, printers and other devices. There are many Kernel processes System Initialization (booting up or starting), Kernel mode (privileged access). Kernel functions include such other functions as Process (program execution) management (creation, termination, accounting, and scheduling), Memory management (RAM-Random Access Memory management known as VM-Virtual Memory), I/O-Input/Output management (access between all peripheral devices such as disk, printers, display, network etc.) and File management (operating system organizational structure). VMM-Virtual Machine Monitors is a sub-layer of system software which enables multiple VM-Virtual Machine to share the same hardware platform and allows applications to run without modification. Here are some of the key capabilities of VMM Hardware: 1) workload isolation, 2) workload consolidation, 3) workload embedding and 4) workload migration. TECHtionary (www.techtionary.com) is the World's First and Largest Animated (rich media) Library/Magazine on Technology as well as Web Hosting Magazine’s Editor’s Choice for Technical Help. Get the analysis and more than 2,630+ free tutorials on data, internet, wireless, VoIP-Voice over Internet Protocol (internet telephony), PBX systems, central office switching, protocols, telephony, telecommunications, networking, routing, IPTV, WiMax, power systems, broadband, WiFi-Wireless Fidelity and other technologies, TECHtionary.com provides "just enough – just-in-time" critical success information. TECHtionary produces web infomercials proven to "increase revenues, decrease customer support costs and increase customer satisfaction." [ Back To TMCnet.com's Homepage ] |