Virtualization
Definitions
Term: Virtualization |
Domain: Cross-cutting issues | ||||
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Engineering and Design (KM-ED) |
Adaptation and Monitoring (KM-AM) |
Quality Definition, Negotiation and
Assurance (KM-QA) |
Generic (domain independent) |
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D o m a i n : L a y e r s |
Business Process Management (KM-BPM) |
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Service Composition and
Coordination (KM-SC) |
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Service Infrastructure (KM-SI) |
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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