Data Center Definitions

  • U

    Unix

    Unix -- often spelled UNIX, especially as an official trademark -- is a multi-user operating system designed for flexibility and adaptability.

  • Uptime data center tier standards

    The Uptime data center tier standards are a standardized methodology used to determine availability in a facility. The tiered system, developed by the Uptime Institute, offers companies a way to measure return on investment (ROI) and performance. (Continued...)

  • Uptime Institute, Inc.

    The Uptime Institute, Inc. is a consortium of companies devoted to maximizing efficiency and uptime in data centers and IT (information technology) organizations... (Continued)

  • utility computing

    Utility computing is a service provisioning model in which a service provider makes computing resources and infrastructure management available to the customer as needed, and charges them for specific usage rather than a flat rate.

  • V

    VSAM (Virtual Storage Access Method )

    VSAM (Virtual Storage Access Method ) is a file management system for IBM's larger operating systems, including its primary mainframe operating system, MVS, now called OS/390. (...Continued)

  • W

    Waste Electrical and Electronic Equipment Regulation (WEEE)

    Waste Electrical and Electronic Equipment Regulation (WEEE) is a directive in the European Union that designates safe and responsible collection, recycling and recovery procedures for all types of electronic waste. 

  • water cooling

    In computers, water cooling is a method used to lower the temperatures of computer processors, and sometimes other components such as graphics cards, using water rather than air as the cooling medium. (Continued...)

  • wetware

    Wetware refers to programmers, developers, systems administrators, cloud and IT architects and other employees that directly affect how servers, applications, networks and the rest of an IT system functions.

  • white box server

    A white box server is a generic server made from commercially available retail computer parts. The phrase "white box" merely indicates that the equipment is generic or brand-agnostic -- the server can be any color.

  • wireless sensor network (WSN)

    A wireless sensor network is a group of specialized transducers with a communications infrastructure that uses radio to monitor and record physical or environmental conditions.

  • workload

    In computing, the workload is the amount of processing that the computer has been given to do at a given time.

  • WUE (water usage effectiveness)

    WUE (water usage effectiveness) is a metric developed by The Green Grid nonprofit consortium to help data centers measure how much water a facility uses for cooling and other building needs.

  • Y

    Yellowdog Updater, Modified (YUM)

    Yellowdog Update, Modified (YUM) is a program that manages installation, updates and removal for Red Hat package manager (RPM) systems. YUM allows the user to update groups of machines without having to update each RPM separately.

  • Yet another Setup Tool (YaST)

    YaST handles much of the administration load, offers a simple graphical interface and sets up setting system parameters easily.

  • Z

    z/OS

    Z/OS is a 64-bit operating system (OS) developed by IBM for its family of z/Architecture enterprise mainframe computers, including the zEnterprise 196 and zEnterprise 114.

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