H - Definitions

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  • H

    Hadoop as a service (HaaS)

    Hadoop as a service (HaaS), also known as Hadoop in the cloud, is a big data analytics framework that stores and analyzes data in the cloud using Hadoop.

  • hardware RAID (hardware redundant array of independent disk)

    Hardware RAID is a form of RAID (redundant array of independent disks) where processing is done on the motherboard or a separate RAID card.

  • HD-DVD (high-definition DVD)

    HD-DVD (high-definition DVD) is a defunct high-capacity optical storage medium that was once seen as the successor to the DVD.

  • HDD form factor (hard disk drive form factor)

    HDD form factor (hard disk drive form factor) is the size or geometry of a data storage device equipped with one or more magnetic-coated spinning platters and one or more moving actuator arms with magnetic heads to read and write information.

  • hierarchical storage management (HSM)

    Hierarchical storage management (HSM) is policy-based management of data files that uses storage media economically and without the user being aware of when files are retrieved from storage.

  • holographic storage (holostorage)

    Holographic storage is computer storage that uses laser beams to store computer-generated data in three dimensions.

  • host bus adapter (HBA)

    A host bus adapter (HBA) is a circuit board or integrated circuit adapter that connects a host system, such as a server, to a storage or network device.

  • hot plugging

    Hot plugging is the addition of a component to a running computer system without significant interruption to the operation of the system.

  • How many bytes for...

    Data is often expressed in bytes, which are composed of eight binary digits.

  • hybrid cloud storage

    Hybrid cloud storage is an approach to managing cloud storage that uses both local and off-site resources.

  • hybrid flash array

    A hybrid flash array is a solid-state storage system that contains a mix of flash memory drives and hard disk drives.

  • hybrid hard drive (HHD)

    A hybrid hard drive (HHD), sometimes known as a solid-state hybrid drive (SSHD), is a mass storage device that combines a conventional hard disk drive (HDD) and a NAND flash memory module.

  • What is a hard disk drive (HDD)?

    A computer hard disk drive (HDD) is a non-volatile data storage device.