Storage Technology Definitions

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

  • G

    geek speak

    Geek speak is how the uninitiated refer to the jargon and special vocabulary used by those immersed in computers and other fields of information technology.

  • Ghost

    Ghost is a software product from Symantec that can clone (copy) the entire contents of a hard disk to another computer's hard disk or to storage media.

  • giant magnetoresistive effect

    GMR is the newest generation of hard disk drive storage.

  • gigabyte (GB)

    As of this writing, 1 gigabyte of storage translates to approximately 200 songs or 250 10-megapixel photos.

  • global namespace

    Global namespace is a feature that provides a consolidated view into multiple Network File Systems (NFS), Common Internet File Systems (CIFS), network-attached storage (NAS) systems or file servers that are in different physical locations.

  • GlusterFS (Gluster File System)

    GlusterFS (Gluster File System) is an open source distributed file system that can scale out in building-block fashion to store multiple petabytes of data.

  • Google Cloud Storage

    Google Cloud Storage is an enterprise public cloud storage platform that can house large unstructured data sets.

  • green cloud

    Green cloud is a label that describes the potential environmental benefits that information technology services delivered over the Internet can offer society. 

  • green storage

    Green storage is the practice of using a variety of "clean energy" storage methods and products to cut down on a data center's carbon footprint, as well as cost.

  • grid storage

    Grid storage is a general term for any approach to storing data that employs multiple self-contained storage nodes interconnected so that any node can communicate with any other node without the data having to pass through a centralized switch. (Continued...)

  • H

    HA storage (high-availability storage)

    High-availability storage (HA storage) is a storage system that is continuously operational or provides at least 99% uptime.

  • Hadoop as a service (HaaS)

    Hadoop as a service provides organizations with big data analytics capabilities that are deployed and managed through a third party. This lets organizations without in-house expertise use the complicated Hadoop framework to gain insight into their data.

  • hard disk

    A hard disk is part of a unit, often called a "disk drive," "hard drive," or "hard disk drive," that stores and provides relatively quick access to large amounts of data on an electromagnetically charged surface or set of surfaces.

  • hard disk drive (HDD)

    Hard disk drives are a type of physical storage media that use spinning disk platters to store nonsequential data in personal computers and enterprise data centers.

  • hard drive shredder

    A hard drive shredder is a mechanical device that physically destroys old hard drives in such a way that the data they contain cannot be recovered.

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