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.

  • E

    external storage device

    An external storage device, also referred to as auxiliary storage and secondary storage, is a device that contains all the addressable data storage that is not inside a computer's main storage or memory.

  • F

    failover

    Failover is a backup operational mode in which the functions of a system component (such as a processor, server, network, or database, for example) are assumed by secondary system components when the primary component becomes unavailable through either failure or scheduled down time.

  • fat provisioning (FP)

    Fat provisioning (FP) is the conventional storage provisioning model, in which space is allocated beyond current needs, in anticipation of growing need and increased data complexity... (Continued)

  • FCoE (Fibre Channel over Ethernet)

    FCoE (Fibre Channel over Ethernet) is a storage protocol that enable Fibre Channel communications to run directly over Ethernet. FCoE makes it possible to converges storage and IP protocol traffic onto a single cable transport and interface.

  • Fibre Channel

    Fibre Channel is a high-speed networking technology primarily used for transmitting data among data centers, computer servers, switches and storage at data rates of up to 128 Gbps.

  • Fibre Channel adapter

    A Fibre Channel (FC) adapter is a hardware component that provides connectivity from a server to a storage area network (SAN).

  • Fibre Channel Arbitrated Loop (FC-AL)

    A Fibre Channel Arbitrated Loop (FC-AL) is a high-speed Fibre Channel (FC) topology that can connect up to 126 ports on one controller using a one-way loop or hub design.

  • Fibre Channel director (FC director)

    A Fibre Channel (FC) director is a modular, chassis-based, high port-count switch that connects servers, switches and storage in a dedicated FC storage area network (SAN).

  • Fibre Channel Industry Association (FCIA)

    The Fibre Channel Industry Association (FCIA) is an international organization whose goal is to help its members promote Fibre Channel (FC) technology.

  • Fibre Channel over IP (FCIP or FC/IP)

    Fibre Channel over IP (FCIP or FC/IP, also known as Fibre Channel tunneling or storage tunneling) is an Internet Protocol (IP)-based storage networking technology developed by the Internet Engineering Task Force (IETF).

  • Fibre Channel port names

    Fibre Channel port names

  • Fibre Channel switch (FC switch)

    A Fibre Channel switch is a networking device that is compatible with the Fibre Channel (FC) protocol and designed for use in a dedicated storage area network (SAN).

  • FICON (Fiber Connectivity)

    FICON (for Fiber Connectivity) is a high-speed input/output (I/O) interface for mainframe computer connections to storage devices.

  • file storage

    File storage stores data in a hierarchical structure, usually in a NAS system. The system storing data and the client retrieving data see files and folders in the same format.

  • file synchronization (file sync)

    File synchronization, often used as a form of backup, is the process by which files residing in more than one physical location are kept up to date.

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