Server hardware Definitions

  • D

    data integrity

    Data integrity is the assurance that digital information is uncorrupted and can only be accessed or modified by those authorized to do so. Integrity involves maintaining the consistency, accuracy and trustworthiness of data over its entire life cycle.

  • E

    enclave

    In IBM's OS/390 operating system, an enclave is a representation of a business transaction or unit of work.

  • event forwarding

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

  • F

    field-replaceable unit (FRU)

    In electronic hardware, particularly computer systems, a field-replaceable unit (FRU) is a circuit board or part that can be quickly and easily removed and replaced by the user or by a technician without having to send the entire product or system to a repair facility.

  • 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?

  • grumble line

    A grumble line is the plotted amount of light from the sky that will be available in a building once an adjacent building has been erected.

  • H

    high availability (HA)

    In information technology, high availability refers to a system or component that is continuously operational for a desirably long length of time.

  • High Level Assembler (HLASM)

    High Level Assembler (HLASM) is IBM's assembler programming language and the assembler itself for the IBM z/OS, z/VM, OS/390, MVS, VM, and VSE operating systems. Released in June 1992, HLASM was the first new assembler language from IBM in twenty years. Version 4 was released in September 2000.

  • hot/cold aisle

    Hot aisle/cold aisle is a layout design for server racks and other computing equipment in a data center. The goal of a hot aisle/cold aisle configuration is to conserve energy and lower cooling costs by managing air flow.

  • HP 9000

    The HP 9000 is a line of UNIX-based business servers from Hewlett-Packard (HP) with server models that span enterprise applications from the "entry-level" (branch or department-level computers, Web hosting servers, and so forth) through the midrange with needs for handling advanced enterprise resource planning (ERP) and analytical customer resource management (CRM) up to its high-end servers for very computing-intensive applications.

  • HVAC (heating, ventilation, and air conditioning)

    HVAC stands for heating, ventilation, and air conditioning.

  • I

    IBM Roadrunner

    Roadrunner is the fastest supercomputer in the world, twice as fast as Blue Gene and six times as fast as any of the other current supercomputers. IBM developed Roadrunner for the Los Alamos National Laboratory in New Mexico. (Continued...)

  • Information Technology (IT)

    Information technology (IT) is a general term that covers all forms of technology used to create, store, exchange, and use information in various forms.

  • infrastructure (IT infrastructure)

    Infrastructure is the foundation or framework that supports a system or organization.

  • ISO

    ISO, founded in 1947, is a worldwide federation of national standards bodies from some 100 countries, with one standards body representing each member country.

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