A - Definitions

  • A

    access method

    In computing, an access method is a program or a hardware mechanism that moves data between the computer and an outlying device such as a hard disk (or other form of storage) or a display terminal.

  • access time

    Access time is the time from the start of one storage device access to the time when the next access can be started.

  • active archive

    An active archive is a collection of data that is too valuable for a company to discard, but only needs to be accessed occasionally.

  • address space

    Address space is the amount of memory allocated for all possible addresses for a computational entity, such as a device, a file, a server, or a networked computer.

  • ADSTAR Distributed Storage Management (ADSM)

    ADSTAR Distributed Storage Management (ADSM) is a collective term for IBM's family of high-end software that helps a customer manage the storage devices (such as mainframe storage, PC disk drives, and Zip drives) that are scattered around the company.

  • AHCI (Advanced Host Controller Interface)

    An AHCI (Advanced Host Controller Interface) is a hardware mechanism that allows software to communicate with Serial ATA (SATA) devices.

  • AIT (advanced intelligent tape)

    AIT (advanced intelligent tape) is a magnetic tape and drive system used for computer data storage and archiving.

  • all-flash array

    An all-flash array is a solid state storage disk system that contains multiple flash memory drives instead of spinning hard disk drives. A flash array can transfer data to and from solid state drives (SSDs) much faster than hard disk drives.

  • Andrew file system (AFS)

    An Andrew file system (AFS) is a location-independent file system that uses a local cache to reduce the workload and increase the performance of a distributed computing environment.

  • application-aware storage

    Application-aware storage is a storage system with built-in intelligence about relevant applications and their utilization patterns.

  • archival storage

    In computers, archival storage is storage for data that may not be actively needed but is kept for possible future use or for record-keeping purposes.

  • archive

    In enterprise data storage, an archive is a collection of infrequently accessed data that needs to be stored for long periods of time to meet backup and compliance requirements.

  • areal density

    Areal density measures the amount of data that can be stored on a given amount of physical space on a disk drive.

  • array-based memory

    Array-based memory is an evolving solid-state storage technology similar to flash memory but with potentially greater storage capacity. The increased capacity results from the fact that array-based memory is three-dimensional (3D) while most traditional memory and storage media are two-dimensional (2D)... (Continued)

  • array-based SSD

    An array-based SSD is a solid state drive manufactured in a form factor that can be installed in a typical storage array.

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