Data center storage Definitions

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  • B

    block storage

    Block storage is an approach to data storage in which each storage volume acts as an individual hard drive that is configured by the storage administrator. In the block storage model, data is saved to the storage media in fixed-sized chunks called blocks.

  • brontobyte

    A brontobyte is a measure of memory or data storage that is equal to 10 to the 27th power of bytes.

  • C

    carrier hotel (colocation center)

    A carrier hotel, also called a colocation center, is a secure physical site or building where data communications media converge and are interconnected... (Continued)

  • Ceph

    Ceph is open source software providing scalable object-, block- and file-based storage under a unified system. Red Hat and SUSE sell commercially supported versions of Ceph.

  • cold storage

    Cold storage is a computer system designed for retaining inactive data, such as information required for regulatory compliance, at low cost and high efficiency.

  • 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

    data retention

    Data retention, also called records retention, is the continued storage of an organization's data for compliance or business reasons. 

  • Dell EqualLogic

    Dell EqualLogic storage-area network arrays provide varying capacities of hard disk drives and solid-state drives using iSCSI and SATA controllers.

  • E

    Express Bay

    Express Bay is an externally accessible storage slot that is designed to accept a high-performance PCI Express (PCIe) solid-state drive (SSD),

  • F

    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.

  • 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.

  • FLAPE

    FLAPE (flash plus tape) is an approach to tiered storage that allows administrators to archive data as soon as it is written.

  • G

    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.

  • H

    hot data

    Hot data is a reference to data that is accessed the most by an organization.

  • I

    IBM General Parallel File System (IBM GPFS)

    The IBM General Parallel File System is one of the top file systems used in high-performance computing and the basis for many storage products used in supercomputing.

  • illumos

    Illumos is a free, open source operating system (OS) developed as a fork of Unix-based OpenSolaris, the open source community-built derivative of the Solaris OS.

  • L

    Load DynamiX

    Load DynamiX is a storage performance testing appliance that can simulate production workloads and virtual desktop infrastructure workloads to determine how a system handles stress before putting that system into production. Appliances support all major storage protocols.

  • O

    open source storage

    Open source storage is data storage software developed in a public, collaborative manner that permits the free use, distribution and modification of the source code.

  • optical disc

    An optical disc is an electronic data storage medium that can be written to and read from using a low-powered laser beam.

  • P

    persistent storage

    Persistent storage is any data storage device that retains data after power to that device is shut off. It is also sometimes referred to as non-volatile storage.

  • R

    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 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.

  • read cache

    A read cache is a computer storage component that temporarily keeps a copy of data from a slower permanent storage location in order to accelerate the fulfillment of future requests for the data.

  • Red Hat OpenStack Platform

    Red Hat OpenStack Platform is a commercially supported distribution of open source OpenStack software designed to build and manage large pools of compute, storage and networking resources in public and private clouds.

  • S

    SATA controller

    A SATA controller handles how hard drives are connected to a computer's motherboard.

  • storage consolidation

    Storage consolidation, also called storage convergence is a method of centralizing data storage among multiple servers.

  • storage node

    A storage node is typically a physical server with one or more hard-disk drives (HDDs) or solid-state drives (SDDs).

  • storage service provider (SSP)

    Also see two related terms, application service provider and management service provider.

  • W

    wide-area file services (WAFS)

    Wide-area file services (WAFS) is a storage technology that makes it possible to access a remote data center as though it were local. Among other benefits, WAFS enables businesses, academic institutions, and government agencies having numerous branch offices to centrally manage data backups in real time... (Continued)

  • X

    XAM (eXtensible Access Method)

    XAM (eXtensible Access Method) is a standard that makes it easier to manage fixed content by freeing data from dependencies on location, applications and storage devices.

  • Z

    ZFS

    ZFS is a local file system and logical volume manager created by Sun Microsystems to control the placement, storage and retrieval of data in enterprise computing systems.

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