HP E1200-320 manual Glossary

Glossary

adapter	A printed circuit assembly that translates data between the FC host processor’s internal bus and
	a different bus, such as SCSI.
address	See SCSI addressing.
addressing mode	Used to create a mapping table that maps devices on the SCSI bus to Fibre Channel logical
	units.
AL_PA	Arbitrated Loop Physical Address. A unique one-byte valid value, derived and used in an
	Arbitrated Loop Topology as defined in ANSI specification FC_AL ver 4.5.
arbitrated loop	See Fibre Channel - Arbitrated Loop. (ANSI specification FC_AL ver 4.5)
area	The second byte of the N_Port Identifier.
auto-assigned	A menu item. The auto-addressing option creates a mapping table using devices discovered
mapping	upon powering up or resetting the interface card, that is not otherwise retained by the
	interface card.
baud	A unit of signaling speed, expressed as the maximum number of times per second the signal
	can change the state of the transmission line or other medium (units of baud are sec-1). Note:
	With Fibre Channel scheme, a signal event represents a single transmission bit.
bus	A means of transferring data between modules and adapters or between an adapter and SCSI
	devices. For a SCSI bus definition, see SCSI bus.
channel	A general term for a path on which electronic signals travel.
clusters	Two or more computers sharing the same resources on a communication link.
interface card	An intelligent device within the SAN (storage area network) infrastructure that can handle
	multiple protocols, such as Fibre Channel and SCSI. The routing decision is based on paths
	between address mappings among dispersed initiators and targets.
interface	Configuration involving at least two interface card/routers where one interface card/router is
card-to-router	in Initiator Mode and another in Target Mode.
device	See FC Device or SCSI Device.
differential	An electrical signal configuration using a pair of lines for data transfer. The advantage of
	differential compared to single-ended configuration is a relative high tolerance for
	common-mode noise and crosstalk when used with twisted pair cables. In layman’s terms, this
	means longer distance.
domain	A FC term describing the most significant byte in the N_Port Identifier for the FC device. It is not
	used in the FC-SCSI hardware path ID. It is required to be the same for all SCSI targets
	logically connected to a FC adapter.
exchange	A FC term for the basic mechanism used for managing an operation. An exchange identifies
	information transfers consisting of one or more related non concurrent sequences that may
	flow in the same or opposite directions, but always in half duplex mode. An exchange is
	identified by an OX_ID and an RX_ID.
fabric	An FC term that includes FC Arbitrated Loop, Switched Fabric, and Point-to-Point.
FC	See Fibre Channel.

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