All-flash arrays Definitions

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  • #

    3.5" SSD (3.5 solid-state drive)

    A 3.5 solid-state drive (SSD) is a data storage device designed for the 3.5-inch hard disk drive (HDD) form factor. It fits into the drive slot as a same-sized HDD in a portable computer, enterprise server, or storage system.

  • 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)

  • array-based SSD

    An array-based SSD is a solid state drive manufactured in a form factor that can be installed in a typical storage array.

  • 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.

  • D

    disk array

    A disk array, also called a storage array, is a data storage system used for block-based storage, file-based storage or object storage.

  • G

    giant magnetoresistive effect

    GMR is the newest generation of hard disk drive storage.

  • gigabyte

    A gigabyte -- pronounced with two hard Gs -- is a unit of data storage capacity that is roughly equivalent to 1 billion bytes.

  • 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)

    A computer hard disk drive (HDD) is a non-volatile memory hardware device that controls the positioning, reading and writing of the hard disk, which furnishes data storage.

  • HDD form factor (hard disk drive form factor)

    HDD form factor is the size or geometry of a hard disk drive, determining the device’s compatibility with the drive bays in a storage array or enclosure, server, portable computer or other computing device.

  • 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.

  • N

    NetApp

    NetApp, formerly Network Appliance Inc., is a company in the computer technologies industry specializing in data storage hardware and associated management software.

  • NetApp SolidFire

    NetApp SolidFire is a business division of NetApp Inc. that specializes in all-flash storage systems.

  • NVDIMM (Non-Volatile Dual In-line Memory Module)

    An NVDIMM (non-volatile dual in-line memory module) is hybrid computer memory that retains data during a service outage.

  • 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

    SAS SSD (Serial-Attached SCSI solid-state drive)

    A SAS SSD (Serial-Attached SCSI solid-state drive) is a NAND flash-based storage or caching device designed to fit in the same slot as a hard disk drive (HDD) and use the SAS interface to connect to the host computer.

  • Skyera

    Skyera was an all-flash array vendor that Western Digital's HGST subsidiary purchased in an all-cash transaction in December 2014.

  • storage medium (storage media)

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

  • T

    Terabyte (TB)

    A Terabyte (TB) is a measure of computer storage capacity that is approximately 2 to the 40th power, or 10 to the 12th power, which equals approximately a trillion bytes.

  • 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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