ISCSI SAN Definitions

  • A

    ASPI (Advanced SCSI Programming Interface)

    ASPI (Advanced SCSI Programming Interface) specifies how an application program can communicate with a SCSI (Small Computer System Interface) device through a common SCSI device driver.

  • B

    block storage

    Block storage is a type of data storage typically used in storage-area network (SAN) environments where data is stored in volumes, also referred to as blocks.

  • H

    host bus adapter (HBA)

    A host bus adapter (HBA) provides physical connectivity and input/output between a server and a network and/or storage device.

  • I

    iFCP (Internet Fibre Channel Protocol)

    iFCP (Internet Fibre Channel Protocol) is an emerging standard for extending Fibre Channel storage networks across the Internet.

  • Internet Small Computer System Interface (iSCSI) adapter

    An iSCSI adapter is a network interface card that enables the transmission of data between host computers and iSCSI-based storage arrays and typically handles the TCP/IP processing.

  • IP SAN (Internet Protocol storage area network)

    An IP SAN is a dedicated storage area network (SAN) that allows multiple servers to access pools of shared block storage devices using storage protocols that depend on the Internet Engineering Taskforce standard Internet Protocol suite.

  • IP storage

    IP storage is a general term for several approaches to using the Internet Protocol (IP) in a storage area network (SAN) usually over Gigabit Ethernet.

  • IPI (Intelligent Peripheral Interface)

    IPI (Intelligent Peripheral Interface) is a high-bandwidth interface between a computer and a hard disk or a tape device.

  • iSCSI (Internet Small Computer System Interface)

    The iSCSI transport layer protocol allows the SCSI command to be sent over LANs, WANs and the Internet. Learn about its role in iSCSI SANs and virtualization.

  • iSCSI initiator

    An iSCSI initiator is software or hardware that enables a host computer to transmit data to an iSCSI-based storage array through a network adapter over a TCP-based IP network.

  • iSCSI switch (Internet Small Computer System Interface switch)

    An iSCSI switch is an appliance that processes and channels data between an iSCSI initiator and target on a storage device.

  • L

    LUN masking

    LUN masking is a further constraint added to zoning, subdividing access to the port so that only LUNs authorized to access a specific server can access the corresponding port.

  • LUN zoning

    LUN zoning is a method of configuring SAN fabric to match logical unit numbers (LUNs) to the proper servers. As a rule, end devices such as hosts can only see and access storage within their zone. Limiting access in this way improves security and allows bandwidth allocation through assigning particular ports to a zone.

  • S

    SCSI (Small Computer System Interface)

    Definition: The Small Computer System Interface (SCSI) is a set of parallel interface standards used to attach disk drives and other peripherals to a computer.

  • SCSI controller (Small Computer System Interface controller)

    A SCSI controller, also called a host bus adapter (HBA), is a card or chip that allows a SCSI storage device to communicate with the operating system across a SCSI bus.

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