Data center systems management Definitions

  • A

    abend (abnormal end)

    An abend (a combining of two words, abnormal end, when operator messages were as short as possible) is an abnormal, rather than planned, end or termination of a computer program because of some problem with how it is running.

  • B

    batch

    In a computer, a batch job is a program that is assigned to the computer to run without further user interaction.

  • C

    capacity on demand (COD)

    Capacity on demand (COD) is a purchasing option that allows companies to receive equipment with more computer processing, storage, or other capacity than the company needs at the time of purchase, and have that extra capacity remain unused and unpaid for until the company actually requires it.

  • coaxial cable

    Coaxial cables transmit high-frequency electrical signals through connectors without interference.

  • colocation marketplace

    A colocation marketplace is an online platform that connects colocation users with managed service providers, IT vendors and potential business partners.

  • COTS (commercial off-the-shelf)

    COTS (commercial off-the-shelf) describes ready-made products that can easily be obtained.

  • crossbar latch

    A crossbar latch, also called a molecular crossbar latch, is a nanoscale device with properties similar to those of a conventional silicon transistor, but physically much smaller, having a diameter of approximately 2 nanometers (nm, where 1 nm = 10-9 m).

  • D

    data center

    A data center (or datacenter) is a facility composed of networked computers and storage that businesses or other organizations use to organize, process, store and disseminate large amounts of data.

  • data center as a service (DCaaS)

    A data center as a service (DCaaS) provider will supply turnkey physical data center facilities and computing infrastructure (e.g., servers, networking, storage, and so on) to clients in the form of a service.

  • data center resiliency

    Data center resiliency is the ability of a server, network, storage system, or an entire data center, to continue operating even when there has been an equipment failure, power outage or other disruption.

  • E

    economizer

    An economizer is a mechanical device used to reduce energy consumption. Economizers recycle energy produced within a system or leverage environmental temperature differences to achieve efficiency improvements. (Continued...)

  • edge computing

    Edge computing is an IT architecture in which raw data is processed as near to the data source as possible instead of being sent over the Internet to a remote data center for processing.

  • Enterprise Identity Mapping (EIM)

    Enterprise Identity Mapping (EIM) is an open architecture from IBM for helping an enterprise manage the multiple user registries and identities that enable a computer user to access multiple applications with a single sign-on.

  • event forwarding

    Event forwarding is the transmission of information to a centralized computer concerning events that take place on remote computers or servers... (Continued)

  • G

    grid computing

    Grid computing uses small, distributed resources from servers and PCs to solve big problems. But will this architecture survive the cloud era?

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