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.

  • C

    Common Assurance Maturity Model (CAMM)

    The Common Assurance Maturity Model (CAMM) is a global project to list the information assurance maturity of suppliers offering provisioning services (for example, cloud providers).

  • Common Information Model (CIM)

    The Common Information Model (CIM) is a computer industry standard for defining device and application characteristics so that system administrators and management programs will be able to control devices and applications from different manufacturers or sources in the same way.

  • compact disc (CD)

    A compact disc is a portable storage medium that can be used for recording, storing and playing back audio, video and other data in digital form.

  • CompactFlash card (CF card)

    A CompactFlash card (CF card) is a memory card format developed by SanDisk in 1994 that uses flash memory technology to store data on a very small portable device.

  • compression artifact

    A compression artifact is the fuzz or distortion in a compressed image or sequence of video images.

  • conductive metal-oxide (CMOx) technology

    Conductive metal-oxide (CMOx) technology is a nonvolatile storage technology that works by moving oxygen ions between conductive and insulating metal-oxide layers within a single chip.

  • Content Protection for Removable Media (CPRM)

    Content Protection for Removable Media (CPRM) is a hardware-based technology designed to enforce copy protection restrictions through built-in mechanisms in storage media that would prevent unauthorized file copying.

  • content-addressed storage (CAS)

    Content-addressed storage (CAS) is a method of providing fast access to fixed content (data that is not expected to be updated) by assigning it a permanent place on disk. CAS makes data retrieval straightforward by storing it in such a way that an object cannot be duplicated or modified once it has been stored; thus, its location is unambiguous.

  • continuous data protection (storage convergence)

    Continuous data protection (CDP), also called continuous backup, is a storage system in which all the data in an enterprise is backed up whenever any change is made. (Continued...)

  • converged network adapter (CNA)

    A converged network adapter (CNA) is a single network interface card (NIC) that contains both a Fibre Channel (FC) host bus adapter (HBA) and a TCP/IP Ethernet NIC.

  • copy data

    Copy data is the electronic data that is created as a result of data protection functions like backups, snapshots and disaster recovery.

  • copy data management (CDM)

    Copy data management (CDM) is an approach to reducing storage consumption that involves eliminating the unnecessary duplication of production data.

  • OpenStack Block Storage (Cinder)

    OpenStack Block Storage (Cinder) is open source software designed to create and manage a service that provides persistent data storage to cloud computing applications.

  • D

    D2D2C (disk-to-disk-to-cloud)

    D2D2C (disk-to-disk-to-cloud) is an approach to hybrid cloud backup that involves using local storage for staging data that will eventually be sent to a third-part cloud storage service provider.

  • DASD (direct access storage device)

    Direct access storage device (DASD, pronounced DAZ-dee), is a general term for magnetic disk storage devices. The term has historically been used in the mainframe and minicomputer (mid-range computer) environments.

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