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.

  • N

    NAS accelerator

    A NAS accelerator (network-attached storage accelerator) is a printed circuit card that offloads TCP/IP processing from a microprocessor.

  • NAS Appliance

    NAS appliances are commodity hardware that includes their own dedicated storage disks and RAID that can easily scale as more capacity is needed.

  • NAS enclosure (network-attached storage enclosure)

    NAS enclosures provide shared storage to all users connected to a network, and vary in models appropriate for home offices to enterprises.

  • NAS filer (network-attached storage filer)

    NAS filers add scalable, expandable storage for file-serving purposes in data sharing, cloud applications, Internet and enterprise networks, in both Fibre Channel SANs and Ethernet LANs.

  • NDMP (Network Data Management Protocol)

    NDMP (Network Data Management Protocol) is an open protocol used to control data backup and recovery communications between primary and secondary storage in a heterogeneous network environment.

  • nearline storage

    Nearline storage is the on-site storage of data on removable media.

  • NetApp

    NetApp, formerly Network Appliance Inc., is a company in the computer technologies industry specializing in data storage hardware and associated management software.

  • NetApp Data Fabric

    The products and services that compose NetApp’s Data Fabric are designed to provide customers with the agility they need to quickly and efficiently move data to and from the cloud.

  • NetApp SolidFire

    NetApp SolidFire is a business division of NetApp Inc. that specializes in all-flash storage systems.

  • network-attached storage (NAS)

    Network-attached storage (NAS) is dedicated file storage that enables multiple users and heterogeneous client devices to retrieve data from centralized disk capacity.

  • non-disruptive data migration

    Non-disruptive data migration is a feature that allows data movement from one storage device to another without causing downtime in the environment.

  • non-disruptive upgrade (NDU)

    A non-disruptive upgrade (NDU) is an update to software or hardware done without interruption to system service or data access.

  • non-volatile memory (NVM)

    Non-volatile memory (NVMe) is a semiconductor technology that does not require a continuous power supply to retain the data or program code stored in a computing device.

  • non-volatile storage (NVS)

    Non-volatile storage (NVS) is a broad collection of technologies and devices that do not require a continuous power supply to retain data or program code persistently on a short- or long-term basis.

  • NOR flash memory

    NOR flash memory is one of two types of nonvolatile storage technologies.

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