S - Definitions

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  • S

    PowerFlex (formerly ScaleIO)

    PowerFlex is a software-defined storage product from Dell EMC. It is available as software only or as a prebuilt Dell server or rack appliance.

  • scalability

    In information technology, scalability (frequently spelled 'scaleability') has two uses: for a computer application to function with change in size and volume, and to take advantage of a rescale.

  • screen scraping

    Screen scraping is a data collection method used to gather information shown on a display to use for another purpose.

  • SELinux (Security-Enhanced Linux)

    SELinux, or Security-Enhanced Linux, is a part of the Linux kernel that acts as a protective agent to the operating system.

  • shell program

    A shell program is software that provides users with an interface for accessing services in the kernel.

  • single pane of glass

    A single pane of glass is a management console that presents data from multiple sources in a unified display.

  • single point of failure (SPOF)

    A single point of failure (SPOF) is a potential risk posed by a flaw in the design, implementation or configuration of a circuit or system.

  • SMP (symmetric multiprocessing)

    SMP (symmetric multiprocessing) is the processing of programs by multiple processors that share a common operating system and memory.

  • Spine-leaf (spine-leaf architecture)

    Spine-leaf, or leaf-spine, is a two-layer network topology composed of spine and leaf switches.

  • statistical mean, median, mode and range

    The terms mean, median, mode, and range describe properties of statistical distributions.

  • supervisor call (SVC)

    In computers, especially IBM mainframes, a supervisor call (SVC) instruction is a processor instruction that directs the processor to pass control of the computer to the operating system's supervisor program.

  • SUSE

    SUSE (pronounced soo-sah) is a multinational company that offers enterprise-grade open source products based on Linux technologies.

  • SUSE Linux Enterprise Server (SLES)

    SUSE Linux Enterprise Server (SLES) is a Linux-based server operating system created and maintained by the German-based organization, SUSE.

  • What is a shell script and how does it work?

    A shell script is a text file that contains a sequence of commands for a Unix-based operating system (OS).

  • What is a software-defined data center (SDDC)?

    A software-defined data center (SDDC) is a server management concept in which all infrastructure elements -- networking, storage and compute -- are virtualized and delivered as a service.

  • What is server sprawl and how to prevent it?

    Server sprawl is when multiple underutilized servers take up more space and consume more resources than can be justified by their workload.