IBM MegaRAID 8480 manual Host adapter, Board, Hot spare, Internal SAS, Device, Main memory

	architectures. Fusion-MPT architecture offers a single binary, operating
	system driver that supports both Fibre Channel and SCSI devices.
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 adapter	A circuit board or integrated circuit that provides a device connection to
board	the computer system.
hot spare	An idle, powered on, standby drive ready for immediate use in case of
	disk failure. It does not contain any user data. A hot spare can be
	dedicated to a single redundant array or it can be part of the global
	hot-spare pool for all arrays managed by the controller.
	When a disk fails, the controller firmware automatically replaces and
	rebuilds the data from the failed drive to the hot spare. Data can be
	rebuilt only from virtual disks with redundancy (RAID levels 1, 5, 10, and
	50; not RAID level 0), and the hot spare must have sufficient capacity.
internal SAS	A SAS device installed inside the computer cabinet. These devices are
device	connected by using a shielded cable.
main memory	The part of a computer’s memory which is directly accessible by the CPU
	(usually synonymous with RAM).
NVRAM	Acronym for Nonvolatile Random Access Memory. An EEPROM
	(Electronically Erasable Read-Only Memory chip) that stores
	configuration information. Refer to EEPROM.
PCI	Acronym for Peripheral Component Interconnect. A high-performance,
	local bus specification that allows the 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.
PCI Express	Acronym for Peripheral Component Interconnect Express. A
	high-performance, local bus specification that allows the connection of
	devices directly to computer memory. PCI Express is a two-way, serial
	connection that transfers data on two pairs of point-to-point data lines.
	PCI Express goes beyond the PCI specification in that it is intended as
	a unifying I/O architecture for various systems: desktops, workstations,
	mobile, server, communications, and embedded devices.

A-2	Glossary of Terms and Abbreviations
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