Avago Technologies MegaRAID SCSI 320-0X (530) - Manual (Page 34)

B-2 Glossary of Terms and Abbreviations
Copyright © 2005 by LSI Logic Corporation. All rights reserved.
Fusion-MPT
Architecture Fusion-MPT (Message Passing Technology) architecture consists of
several main elements: Fusion-MPT firmware, the Fibre Channel and
SCSI hardware, and the operating system level drivers that support these
architectures. Fusion-MPT architecture offers a single binary, operating
system driver that supports both Fibre Channel and SCSI devices now.
Host The computer system in which a storage adapter is installed. It uses the
storage adapter to transfer information to and from devices attached to
the SCSI bus.
Host Bus
Adapter (HBA) A circuit board or integrated circuit that provides a device connection to
the computer system.
Internal SCSI
Device A SCSI device installed inside the computer cabinet. These devices are
connected together using an unshielded ribbon cable.
Main Memory The part of a computer’s memory which is directly accessible by the CPU
(usually synonymous with RAM).
NVRAM Non-volatile Random Access Memory. Actually an EEPROM
(Electronically Erasable Read-Only Memory chip) used to store
configuration information. See EEPROM.
PCI and PCI-X Peripheral Component Interconnect (PCI) and Peripheral Component
Interconnect-extended. A high performance local bus specification that
allows connection of devices directly to computer memory. The PCI Local
Bus allows transparent upgrades from 32-bit data path at 33 MHz to
64-bit data path at 33 MHz, and from 32-bit data path at 66 MHz to 64-bit
data path at 66 MHz. The PCI-X Local Bus supports a 64-bit data path
at 133 MHz.
Peripheral
Devices A piece of hardware (such as a video monitor, disk drive, printer, or
CD-ROM) used with a computer and under the computer’s control. SCSI
peripherals are controlled through a SCSI storage adapter (host
adapter).
SCSI Bus A storage adapter (host adapter) and one or more SCSI peripherals
connected by cables in a linear configuration. The adapter may exist
anywhere on the bus, allowing connection of both internal and external
SCSI devices. A system may have more than one SCSI bus by using a
multi-channel adapter or by using multiple adapters.