Glossary – HP MPX200 Multifunction Router User Manual

Page 139

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Glossary

A

adapter

The board that interfaces between the host system and the target devices. Adapter is synonymous
with host bus adapter (HBA), host adapter, and adapter board.

API

Application Programming Interface. A specification intended to be used as an interface by software
components to communicate with each other.

array

A storage system that contains multiple disk or tape drives. A disk array, for example, is
differentiated from a disk enclosure, in that the array has cache memory and advanced
functionality, like RAID and virtualization. Components of a typical disk array include disk array
controllers, cache memories, disk enclosures, and power supplies.

ASIC

Application Specific Integrated Circuit. A microchip designed for special applications such as
Fibre Channel.

ATIO

Accept Target I/O.

B

bandwidth

A measure of the volume of data that can be transmitted at a specified transmission rate.

C

CDB

Command Descriptor Block.

CHAP

Challenge Handshake Authentication Protocol. A protocol that defines a methodology for
authenticating initiators and targets.

CLI

Command Line Interface. An interface or dialog between the user and a program, or between
two programs, where a line of text (a command line) is passed between the two.

CmdSN

Command Sequence Number.

CRC

Cyclic Redundancy Check. A type of check value designed to catch most transmission errors.

CSV

Comma-Separated Value. A data file used for storage of data structured in a table form.

D

data migration

The process of transferring data between storage types, formats, or computer systems. Data
migration is usually performed programmatically to achieve an automated migration, freeing up
human resources from tedious tasks. Migration is a necessary action for retaining the integrity of
the data and for allowing users to search, retrieve, and make use of data in the face of constantly
changing technology.

DCBX

Data Center Bridging Exchange. A set of enhancements to Ethernet local area networks for use
in data center environments.

DDB

Data Description Block.

device

A target, typically a disk drive. Hardware such as a disk drive, tape drive, printer, or keyboard
that is installed in or connected to a system. In Fibre Channel, a target device.

DHCP

Dynamic Host Configuration Protocol.

DMA

Direct Memory Access.

DML

Data Management LUN.

driver

The software that interfaces between the file system and a physical data storage device or network
media.

DSD

Data Segment Descriptor.

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