Storage management and analytics Definitions

  • A

    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.

  • 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.

  • 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.

  • 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.

  • atomic storage (atomic memory)

    Atomic storage (sometimes called atomic memory) is a nanotechnology approach to computer data storage that works with bits and atoms on the individual level.

  • auxiliary storage

    Auxiliary storage is all addressable data storage that is not currently in a computer's main storage or memory.

  • B

    bad block

    A bad block is an area of storage media that is no longer reliable for storing and retrieving data because it has been physically damaged or corrupted.

  • big data storage

    Big data storage is a compute-and-storage architecture that collects and manages large data sets and enables real-time data analytics.

  • bit padding

    Bit padding is the addition of one or more extra bits to a transmission or storage unit to make it conform to a standard size.

  • bit rot

    Bit rot is the slow deterioration in the performance and integrity of data stored on storage media. It is also known by the names bit decay, data rot, data decay and silent corruption.

  • business impact analysis (BIA)

    A business impact analysis (BIA) identifies and examines the effects of natural or human-caused disasters on critical business functions.

  • byte

    In most computer systems, a byte is a unit of data that is eight binary digits long. Bytes are often used to represent a character such as a letter, number or typographic symbol.

  • C

    cache (computing)

    A cache -- pronounced CASH -- is hardware or software that is used to store something, usually data, temporarily in a computing environment.

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