The ability to separate the physical layout of a network & its devices from how uses are organized into workgroups (knows a logical configuration).
A software technology allowing an operating system to run unmodified on an isolated virtual environment, called virtual machine, where a platform's physical characteristics and behaviours are reproduced.
The pooling of physical storage from multiple network storage devices into what appears to be a single storage device that is managed from a central console
The insertion of an abstraction layer between hosts and storage which enables advanced, network-based functionality, such as: network-based volume management, pooling of storage from multiple SAN-attached storage devices from various vendors, and advanced network-based copy services.
the decoupling of a resource or request for a service from the underlying physical delivery of that service such that the consumer needs no knowledge of the characteristics of the delivery system.
Virtualization decouples the once-fixed dependencies among applications, the operating environment, and the hardware and software stack on which they run. Once decoupled, the resources in each of these stacks can be automatically and invisibly allocated and reallocated through software, thus achieving greater efficiency and flexibility.
Treating all available storage -- regardless of location -- as one virtual pool to help remove physical storage boundaries.
A set of technologies and tools that can help you aggregate pools of resources to achieve a consolidated view throughout an IT environment. Virtualization technologies provide a logical—rather than physical—view of data, computing power, storage capacity, and other resources.
Allows interacting with a resource using an abstract mechanism so that the underlying physical resource can be replaced with another one of similar capability without affecting the resource consumer. Virtualization balances supply and demand by providing a transparent, aggregated computing resource.
In storage, virtualization is a means by which multiple physical storage devices are viewed as a single logical unit. Virtualization can be accomplished in–band (in the data path) or out-of-band. Out–of–band virtualization does not compete for host resources, and can virtualize storage resources irrespective of whether they are DAS, NAS or SAN.
Denotes the increasing performance of activities by electronic media so that they no longer physically exist but are virtual in nature.
Process of implementing a network based on virtual network segments. Devices are connected to virtual segments independent of their physical location and their physical connection to the network.
The ability to separate the physical layout of a network and its devices from how people are organized into groups (known as logical configuration). The ability to reconfigure logical network end stations relates to the way workgroups interact rather than their physical location.
In computing, virtualization is a broad term that refers to the abstraction of computer resources. One useful definition, from independent IT analyst firm Enterprise Management Associates, 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."