Server Virtualization Definitions

This glossary explains the meaning of key words and phrases that information technology (IT) and business professionals use when discussing server virtualization and related software products. You can find additional definitions by visiting WhatIs.com or using the search box below.

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  • I

    IT showback

    An IT showback system tracks the data center utilization rates of an organization’s business units or end users.

  • K

    KSM (kernel samepage merging)

    KSM (kernel samepage merging) is a Linux kernel feature that allows the KVM hypervisor to share identical memory pages among different process or virtual machines on the same server.

  • L

    linked clones

    Linked clones are copies of virtual machines that share virtual disks with the parent VM, which conserves space and allows multiple VMs to use the same software.

  • Linux virtual machine (Linux VM)

    A Linux virtual machine is a virtual machine (VM) that is running a distribution of Linux as the guest operating system (guest OS).

  • live migration

    Live migration is the movement of a virtual machine from one physical host to another while continuously powered-up... (Continued)

  • M

    MCSE Private Cloud (Microsoft Certified Solutions Expert Private Cloud)

    Microsoft Certified Solutions Expert (MCSE) Private Cloud is a new Microsoft certification covering Windows 2012 Hyper-V and System Center 2012, as well as applications such as SharePoint and Exchange.

  • memory mirroring

    Memory mirroring is the division of memory on a server into two channels. The first channel is mirrored to the second channel, creating a redundant copy of memory.

  • 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.

  • memory paging

    Memory paging is a memory management technique for controlling how a computer's memory resources are shared.

  • Microsoft Hyper-V Best Practices Analyzer

    Microsoft Hyper-V Best Practices Analyzer is a server management tool that scans server configurations and generates a report that identifies best practice violations.

  • Microsoft Hyper-V Dynamic Memory

    Dynamic Memory is a memory allocation feature for Microsoft Hyper-V.  

  • Microsoft Hyper-V Integration Services

    Hyper-V Integration Services is a suite of utilities in Microsoft Hyper-V, designed to enhance the performance of the virtual machine's guest operating system. It optimizes the drivers of the virtual environments to provide the best experience.

  • Microsoft Hyper-V NIC teaming

    Microsoft Hyper-V NIC teaming is the process of grouping multiple virtual network interface cards (NICs) across different physical NICs to increase bandwidth and provide redundancy.

  • Microsoft Hyper-V Quick Migration

    Hyper-V Quick Migration is a feature available in Windows Server 2008 Hyper-V R2 that allows users to move running virtual machines (VMs) from one host to another with minimal downtime.

  • Microsoft System Center Orchestrator

    Microsoft System Center Orchestrator is a workflow automation software product introduced as part of the Microsoft System Center 2012 suite.

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