Server virtualization infrastructure and architecture Definitions
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A
AMD (Advanced Micro Devices)
AMD is the second largest maker of personal computer microprocessors after Intel.
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B
bare metal environment
A bare metal environment is a computer system or network in which a
virtual machine is installed directly on hardware rather than within the host operating system (OS)... (Continued) -
C
cloud-to-cloud migration
Cloud-to-cloud migration (C2C) is the movement of physical or virtual machines -- along with their associated configurations, operating systems, applications and storage -- from one cloud computing provider to another.
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Cluster Labs Pacemaker
Pacemaker is an open source high-availability cluster software developed from a collaboration between Red Hat and Novell.
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CompTIA Cloud Essentials
CompTIA Cloud Essentials is an entry-level, vendor-neutral cloud certification.
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E
early adopter
An early adopter is a person who embraces new technology before most other people do. Early adopters tend to buy or try out new hardware items and programs, and new versions of existing programs, sooner than most of their peers. According to a theory called Diffusion of Innovations (DoI) formulated by Everett Rogers, early adopters make up 13.5 percent of the population.
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G
guest virtual machine (guest VM)
A guest virtual machine (guest VM) is the software component of a virtual machine (VM), an independent instance of an operating system (called a guest operating system) and its associated software and information.
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H
hardware emulation
Hardware emulation is the use of one hardware device to mimic the function of another hardware device. Microsoft's Hyper-V includes hardware emulation because the Integration Services can only be installed on certain guest operating systems.
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hardware virtualization
Hardware virtualization, which is also known as server virtualization or simply virtualization, is the abstraction of computing resources from the software that uses those resources.
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hardware-assisted virtualization
Hardware-assisted virtualization is the use of a computer's physical components to support the mechanism that abstracts and manages the computer's underlying resources from its operating system and the applications that run on it.
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host virtual machine (host VM)
A host virtual machine is the server component of a virtual machine (VM), the underlying hardware that provides computing resources to support a particular guest virtual machine (guest VM).
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hypervisor
A hypervisor is a function that abstracts -- isolates -- operating systems (OSes) and applications from the underlying computer hardware.
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I
I/O fencing (input/output fencing)
I/O (input/output) fencing is the isolation of a malfunctioning node from a cluster's shared storage to protect the integrity of data.
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Intel VT (Virtualization Technology)
Intel VT (Virtualization Technology) is the company's hardware assistance for processors running virtualization platforms.
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M
memory overcommit (or overcommitment)
Memory overcommit (or overcommitment) is a hypervisor feature that allows a virtual machine (VM) to use more memory space than the physical host has available.