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A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z

  • A

     

    Actuator -
    ADIC - Advanced Digital Information Corporation
    AIT - Advanced Intelligent Tape.
    AIX - Advanced Interactive eXecutive. Unix based operating system developed by IBM. Runs on Intellistation workstations, pSeries, p5, iSeries and i5 servers.
    AS/400 - A line of mid-range servers from IBM. Currently known as System I.
    ATM - Asynchronous transfer Mode.
    Array - A consolidation of multiple disk drives using dedicated hardware or software to function and appear as one, larger drive.
    Availability -

  • B

     

    Backbone - The segment of a network that the majority of traffic passes through.
    Backplane - An interconnecting device that has sockets for printed circuit boards to plug into
    • Bandwidth - A measure of throughput over time.
    BIOS - Basic Input/Output System
    Bit - Binary digit. The smallest unit of computer storage, a bit is either a 1 or a 0.
    Blade (Server) - A blade server is one which is constructed in a hot-swap chassis and can be added to or removed from a larger frame, without affecting the other blades, to increase (or decrease) computing capacity on the fly.
    Bridge -
    Broken Stripe -
    Bus -
    Byte - Eight (8) bits.

  • C

     

    Cache - A piece of memory used for temporary storage of data that is likely to be requested again
    Catalyst - A family of Cisco switches.
    Cell Processor -
    Channelized - An architecture that transmits data in channels
    Chassis - Generic term for a housing.
    Chipkill - IBMs advanced version of ECC which is capable of offlining memory modules when too many bit errors are detected.
    Chisco - Slang term for counterfit Cisco equipment from China.
    CICS - Customer Information Control System
    CISC - Complex Instruction Set Computer
    Cisco - Manufacturer of enterprise class switches and routers.
    Class A/B/C IP -
    CMOS - Complementary Metal-Oxide Semiconductor
    Compaq -
    Compiler - A program which converts code written in high level languages into machine language.
    Console -
    Controller -
    CPU - Central Processing Unit
    CSU/DSU - Channel Service Unit / Digital (or Data) Service Unit
    Cylinder -

  • D

     

    DASD - Direct Access Storage Device.
    DAE - Disk Array Enclosure. A chassis that holds a set number of drives for incorporation into an even larger cabinet. Sometimes referred to as a 'Shelf".
    Degraded Mode - A condition that occurs when a disk array sustains the loss of a member drive. The array will continue functioning however with a decrease in performance.
    DES - Data Encryption Standard
    DHCP - Dynamic Host Configuration Protocol.
    Disk -
    DLT - Digital Linear Tape.
    DNS - Domain Name Service.
    DPT/RPR - Dynamic Packet transport/Resilient Packet Ring.
    Drive -

  • E

     

    ECC - Error Checking and Correction.
    EMC - Manufacturer of enterprise class storage systems and management software.
    Emulation - Using a piece of software to create a virtual hardware platform.
    EPIC - Explicitly Parallel Instruction Computing.
    ESCON - Enterprise Systems Connection. An IBM S/390 fiber-optic data channel.

  • F

     

    FC-AL - Fiber Channel-Arbitrated Loop.
    FDDI - Fiber Distributed Data Interface.
    Fibre Channel - An optical network technology typically implemented in storage networks.
    FICON - Fiber Connectivity. The Fibre based successor I/O protocol to ESCON. Used in IBM mainframes and storage.
    Firewall -
    Firmware - Software that is embedded directly into hardware or an EEPROM chip accessable by the device that depends on it to function.
    FLOP(s) - Floating Point Operation(s).
    Foundry -
    Frame Relay -
    FTP - File Transfer Protocol.

  • G

     

    GB - Abbreviation for Gigabyte.
    Gb - Abbreviation for Gigabit.
    GBIC - GigaBit Interface Converter.
    Gbps - Gigabits per second. Sometimes written as Gb/s.
    Gflop - Abbreviation for Gigaflops or one billion floating point operations per second.

  • H

     

    HDD - Hard Disk Drive.
    HDS - Hitachi Data Systems.
    HBA - Host Bus Adapter.
    Holographic Storage -
    Hot Spare -
    Hot-swappable -
    HP-UX -
    HSSI - High Speed Serial Interface.
    Hub -

  • I

     

    I/O - Short for Input/Output.
    IA-64 - Intel Architecture-64 bit.
    InfiniBand - A combination of Infinite Bandwidth. An input/output architecture currently utilized in high end servers.
    Integrity - A family of Itanium processor based servers from HP.
    ISO - Internetworking Operating System. Operating system for Cisco switches.
    IPv4 - Internet Protocol version 4.
    IPv6 - Internet Protocol version 6.

  • J

     

    Java -
    JBOD - Just a Bunch Of Disks. An array featuring neither redundancy nor I/O performance benefits. Cumulative capacity of all the arrays drives is achieved via cascading or spill-over e.g. when drive 1 is full, data is written to drive 2 etc.

  • K

     

    KB - Kilobyte, 1000 bytes
    Kb - Kilobit, 1000 bits
    Kbps - Kilobits per second

  • L

     

    LPAR - Logical Partition.
    LTO - Linear Tape-Open.
    LVD - Low Voltage Differential.
    LUN - Logical Unit Number.

  • M

     

    MAE - Metropolitan Area Exchange.
    Mainframe (Server)-
    MAN - Metropolitan Area Network.
    Midrange (Server)-
    MLPPP - Multilink Point-to-Point Protocol.

  • N

     

    Nearline (Array) - NEAR onLINE
    NAM - Network Analysis Module. Integrated network monitoring module for Cisco Catalyst 6500 switches and 7600 series routers.

  • O

     

    OS/400 - Operating system that runs on IBMs AS/400 mid-range computers.

  • P

     

    POE - Power over Ethernet.
    POS - Packet Over SONET.
    pSeries -

  • Q

     

  • R

     

    RAID - Redundant Array of Inexpensive (or Independant) Disks
    Rebuild (Array)-
    Robotic Tape Library -
    Route Processor - A component that collects routing-table information and updates the routers line cards RS/6000 -

  • S

     

    S/390 - A line of mainframe servers from IBM.
    SDLT - Super Digital Linear Tape.
    SCSI - Small Computer System Interface.
    Silo -
    SONET - Synchronous Optical Network.
    SMP - Symmetric Multiprocessor
    SPA - Shared Port Adapter.
    SPE - Storage Processor Enclosure. A Chassis that houses Storage Processors and, like a DAE, is incorporated into a larger cabinet with DAE(s).
    SSA -Serial Storage Architecture. IBMs fault tolerant peripheral interface.
    Storage Server - Non manufacturer specific term implying a stand alone disk array.
    StorageTek - Manufacturer of tape libraries and silos. Acquired by Sun in 2005.
    System i5 - Alternate branding for IBM AS/400 servers.
    System p5 - Alternate branding for IBM RS/6000 servers.
    System z - Alternate Branding for IBM S/390 mainframe servers.

  • T

     

    Tape Drive -
    Tape Library -
    Token Ring -

  • U

     

    Ultrium -

  • V

     

  • W

     

    WAN - Wide Area Network.

  • X

     

  • Y

     

  • Z

     

    z9 -
    zSeries -
    •