IT Governance, Risk, and Compliance

Feb 15 2011   10:06PM GMT

Managing the Growth and Impact of Virtual Machines and Memory – Part II

Robert Davis Robert Davis Profile: Robert Davis

IT virtualization services are derived from the application of virtual memory deployment conventions. In layperson terms, virtual memory exists when the operating system separates end-user logical addressable space from physical addressable space, thus allowing the end-user to have access to memory essentially equivalent to the total primary and secondary storage capacity associated with an IT configuration. Commonly, the primary storage unit associated with an IT configuration is a Random Access Memory card, while the secondary storage unit is typically a hard disk drive capable of reading and writing electronically encoded datum.

Technically, virtual memory is the space defined by the range of allocated addresses that are not part of the physical addressing scheme of the computer. Thus, the virtual memory concept assumes that the storage capacity of an IT configuration item extends beyond its physical limitations. Whereby, to the end-user, it appears as if unlimited memory is available to execute a requested IT service.

View Part I of the Managing the Growth and Impact of Virtual Machines and Memory series here

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