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.

Search Definitions
  • P

    public cloud storage

    Public cloud storage, also called storage-as-a-service or online storage is a service model that provides data storage on a pay-per-use basis, similar to the way a public utility like electric or gas provides and charges for services.

  • Pure Storage

    Pure Storage is a provider of enterprise data flash storage solutions designed to substitute for electromechanical disk arrays.

  • Purple Book

    The Purple Book is the informal name for Philips and Sony's specification document for the double-density compact disk (DDCD) format.

  • Q

    QLC NAND

    QLC NAND (quad-level cell NAND) is a form of NAND flash memory that can store up to four bits of data per memory cell.

  • QNAP Systems Inc. (Quality Network Appliance Provider Systems Inc.)

    QNAP Systems Inc. is a Taiwanese-based storage vendor specializing in hardware systems for file sharing, storage management, virtualization and cloud services as well as surveillance applications for home and businesses.

  • queue depth

    Queue depth, in storage, is the number of pending input/output (I/O) requests for a volume.

  • Quiz: Data Storage

    Computer storage is the holding of data in an electromagnetic form for access by a computer processor.

  • Qumulo

    Qumulo is a Seattle-based storage vendor that specializes in selling its data-aware storage software application called the Qumulo Core. This product provides detailed data analytics, and these analytics are meant to help customers better manage their data storage.

  • R

    race condition

    A race condition is an undesirable situation that occurs when a device or system attempts to perform two or more operations at the same time, but because of the nature of the device or system, the operations must be done in the proper sequence to be done correctly.

  • rack-scale flash

    Rack-scale flash is flash-only storage that uses a high-speed interface to connect the storage more directly to the CPU than with a traditional storage array.

  • Rackspace Cloud

    Cloud provider Rackspace offers several different cloud storage services including Cloud Files, Cloud Block Storage and Cloud Backup.

  • RADOS (Reliable Autonomic Distributed Object Store)

    Reliable Autonomic Distributed Object Store (RADOS) is an object storage service with the ability to scale to thousands of hardware devices by making use of management software that runs on each of the individual nodes. RADOS is an integral part of the Ceph distributed storage system.

  • RADOS Block Device (RBD)

    A RADOS Block Device (RBD) is software that facilitates the storage of block-based data in the open source Ceph distributed storage system.

  • RAID (redundant array of independent disks)

    RAID (redundant array of independent disks) is a way of storing the same data in different places on multiple hard disks or solid-state drives to protect data in the case of a drive failure.

  • RAID 0 (disk striping)

    RAID 0 (disk striping) is the process of dividing a body of data into blocks and spreading the data blocks across multiple storage devices, such as hard disks or solid-state drives (SSDs), in a redundant array of independent disks (RAID) group.

-ADS BY GOOGLE

SearchDisasterRecovery

SearchDataBackup

SearchConvergedInfrastructure

Close