Adaptec 2940U2W Instruction Manual download pdf (Page 7)

Understanding SCSI

SCSI

(pronounced “scuzzy”) stands for Small Computer Systems

Interface. SCSI is an industry standard computer interface for con-

necting SCSI peripherals (such as a hard disk drive, CD-ROM drive,

or scanner) to a common SCSI bus.

A SCSI bus is an electrical pathway that consists of a SCSI adapter

card (such as the SCSI Card 2940U2W) installed in a computer and

one or more SCSI peripherals. SCSI cables are used to connect the

peripherals to the SCSI adapter card.

For the SCSI bus to function properly, SCSI IDs must be assigned to

SCSI devices (SCSI peripherals and SCSI card), and the SCSI bus

must be properly terminated.

SCSI IDs

Each peripheral attached to the SCSI Card 2940U2W, as well as the

SCSI Card 2940U2W itself, must be assigned a unique SCSI ID num-

ber from 0 to 15. A SCSI ID uniquely identifies each SCSI device on

the SCSI bus and determines priority when two or more devices are

trying to use the SCSI bus at the same time.

Refer to the peripheral’s documentation to set the SCSI ID. Here are

some general guidelines for SCSI IDs:

■

For internal SCSI peripherals, the SCSI ID usually is set by con-

figuring a jumper on the peripheral.

■

For external SCSI peripherals, the SCSI ID usually is set with a

switch on the back of the peripheral.

1 2 3 4 5 6 7 8 9 10 11 12 ... 41 42

No comments

Adaptec 2940U2W Instruction Manual Page 7