All-flash arrays Definitions

  • A

    array-based memory

    Array-based memory is an evolving solid-state storage technology similar to flash memory but with potentially greater storage capacity. The increased capacity results from the fact that array-based memory is three-dimensional (3D) while most traditional memory and storage media are two-dimensional (2D)... (Continued)

  • B

    byte

    In most computer systems, a byte is a unit of data that is eight binary digits long. Bytes are often used to represent a character such as a letter, number or typographic symbol.

  • C

    column address strobe

    In computer memory technology, CAS (column address strobe) is a signal sent to a dynamic random access memory (DRAM) that tells it that an associated address is a column address. A data bit in DRAM is stored in a cell located by the intersection of a column address and a row address. A RAS (row address strobe) signal is used to validate the row address.

  • G

    giant magnetoresistive effect

    GMR is the newest generation of hard disk drive storage.

  • gigabyte (GB)

    As of this writing, 1 gigabyte of storage translates to approximately 200 songs or 250 10-megapixel photos.

  • H

    hard disk

    A hard disk is part of a unit, often called a "disk drive," "hard drive," or "hard disk drive," that stores and provides relatively quick access to large amounts of data on an electromagnetically charged surface or set of surfaces.

  • hard disk drive (HDD)

    Hard disk drives are a type of physical storage media that use spinning disk platters to store nonsequential data in personal computers and enterprise data centers.

  • hot spare

    A hot spare, also called a hot standby, is a backup component that can be placed into service immediately when a primary component fails. 

  • K

    Kilo, mega, giga, tera, peta, exa, zetta and all that

    Kilo, mega, giga, tera, peta, exa, zetta are among the list of prefixes used to denote the quantity of something, such as a byte or bit in computing and telecommunications.

  • P

    pay-as-you-grow pricing

    Vendors that offer a pay-as-you-grow storage allow customers with growing environments to acquire capacity after an array has been installed through the purchase of licenses.

  • R

    RAS (row address strobe)

    In computer memory technology, RAS (row address strobe) is a signal sent to a dynamic random access memory (DRAM) that tells it that an associated address is a row address.

  • S

    storage array (disk array)

    A storage array, also called a disk array, is a data storage system that is used for block-based, file-based or object storage. The term is used to describe dedicated storage hardware that contains spinning hard disk drives (HDDs) and/or solid-state disk drives.

  • storage medium

    In computers, a storage medium is any technology (including devices and materials) used to place, keep, and retrieve data.

  • T

    terabyte (TB)

    A terabyte (TB) is a measurement of computer storage capacity that is equal to 1,024 gigabytes (GB). The value is sometimes rounded to 1,000 GB.

  • U

    Ultra DMA (UDMA or Ultra DMA/33)

    Ultra DMA (UDMA, or, more accurately, Ultra DMA/33) is a protocol for transferring data between a hard disk drive through the computer's data paths (or bus) to the computer's random access memory (RAM).

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