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Virtualization

by Gabor Kecskemeti last modified Apr 26, 2012 12:27

Definitions

Term:
Virtualization
Domain: Cross-cutting issues
Engineering and Design
(KM-ED)
Adaptation and Monitoring
(KM-AM)
Quality Definition, Negotiation and Assurance
(KM-QA)
Generic
(domain independent)
D
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m
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n
:
L
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Business Process Management
(KM-BPM)




Service Composition and Coordination
(KM-SC)




Service Infrastructure
(KM-SI)




Generic
(domain independent)



Virtualization, in computing, is the creation of a virtual (rather than actual) version of something, such as a hardware platform, operating system, a storage device or network resources. [E. Turban et al., 2008]. Virtualization can be viewed as part of an overall trend in enterprise IT that includes autonomic computing, a scenario in which the IT environment will be able to manage itself based on perceived activity, and utility computing, in which computer processing power is seen as a utility that clients can pay for only as needed. The usual goal of virtualization is to centralize administrative tasks while improving scalability and overall hardware-resource utilization. With virtualization, several operating systems (OSs) can be run in parallel on a single CPU. This parallelism tends to reduce overhead costs and differs from multitasking, which involves running several programs on the same OS.[Wikipedia]

_ALT_
Virtualization is a technology that combines or divides computing resources to present one or many operating environments using methodologies like hardware and software partitioning or aggregation, partial or complete machine simulation, emulation, time-sharing, and others.[S. Nanda and T. Chiueh, 2005]

 

Competencies

  • SZTAKI: Cloud Computing; http://www.lpds.sztaki.hu


References

  • [E. Turban et al., 2008] Turban, E; King, D; Lee, J; Viehland, D (2008). "Chapter 19: Building E-Commerce Applications and Infrastructure". Electronic Commerce A Managerial Perspective. pp. 27.
  • [Wikipedia] Virtualization, http://en.wikipedia.org/wiki/Virtualization
  • [S. Nanda and T. Chiueh, 2005] Susanta, Nanda and Tzi-Cker, Chiueh. A Survey on Virtualization Technologies, Technical Report, 2005, http://www.ecsl.cs.sunysb.edu/tr/TR179.pdf

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