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Appendices

Appendix B. Glossary

Fibre

(Also known as “Fibre Channel”) A device protocol (in the case of

RAID, a data storage device) capable of high data transfer rates.

Fibre Channel simplifies data bus sharing and supports greater

speed and more devices on the same bus. Fibre Channel can be

used over both copper wire and optical cables.

Fiber

An optical network data transmission type of cable, which is

unrelated to the Fibre Channel described above.

HBA

Host-Bus Adapter – an HBA is a device that permits a PC bus to

pass data to and receive data from a storage bus (such as SCSI or

Fibre Channel).

Host

A computer, typically a server, which uses a RAID system (internal

or external) for data storage.

Host LUN

(See Host and LUN). “Host LUN” is another term for a LUN.

Inter-Integrated Circuit – a type of bus designed by Philips

Semiconductors, which is used to connect integrated circuits. I

is a multi-master bus, which means that multiple chips can be

connected to the same bus and each one can act as a master by

initiating a data transfer.

In-Band SCSI

(Also known as “in-band” or “In-band”.) A means whereby RAID

management software can use SCSI cabling and protocols to

manage a controller. (Note: in-band SCSI is typically used in place

of RS-232 for controller management.)

In-band is also implemented with a Fibre Channel host connection.

iSCSI

iSCSI is Internet SCSI (Small Computer System Interface), an

Internet Protocol (IP)-based storage networking standard for

linking data storage facilities, developed by the Internet

Engineering Task Force (IETF).

Glossary App-7

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