Lsi 7202CP Manual do Utilizador descarregar pdf (Página 50)

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52.5 pc

34.5 pc

44.25 pc

A-6 Glossary of Terms and Abbreviations

Responder A FC term referring to the answering device.

RISC Core LSIFC909 chips contain a RISC (Reduced Instruction Set Computer)

processor, programmed through microcode scripts.

ROM Read Only Memory. Memory from which information can be read but not

changed. The contents of ROM are not erased when the computer is

turned off.

SAN Storage Area Network.

SCAM SCSI Conﬁgured AutoMatically. A method to automatically allocate SCSI

IDs using software when SCAM compliant SCSI devices are attached.

Scatter/Gather A device driver feature that lets the host adapter modify a transfer data

pointer so that a single host adapter transfer can access many segments

of memory. This minimizes interrupts and transfer overhead.

SCB SCSI Command Block.

SCSI Small Computer System Interface. A speciﬁcation for a high-performance

peripheral bus and command set. The original standard is referred to as

SCSI-1.

SCSI-2 The current SCSI speciﬁcation which adds features to the original

SCSI-1 standard.

SCSI ID A way to uniquely identify each SCSI device on the SCSI bus. Each

SCSI bus has eight available SCSI IDs numbered 0 through 7 (or 0

through 15 for Wide SCSI). The host adapter usually gets ID 7 giving it

priority to control the bus.

Sequence A term referring to one of the FC “building blocks”, composed of one or

more related frames for a single operation.

SGL Scatter Gather List.

SNAP SubNetwork Access Protocol.

Synchronous

Data Transfer

One of the ways data is transferred over the SCSI bus. Transfers are

clocked with ﬁxed frequency pulses. This is faster than asynchronous

data transfer. Synchronous data transfers are negotiated between the

SCSI host adapter and each SCSI device.

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Lsi 7202CP Manual do Utilizador Página 50