| SCSI Bus | A host adapter and one or more SCSI peripherals connected by cables |
| in a linear chain configuration. The host adapter may exist anywhere on |
| the chain, allowing connection of both internal and external SCSI |
| devices. A system may have more than one SCSI bus by using multiple |
| host adapters. |
| SCSI Device | Any device that conforms to the SCSI standard and is attached to the |
| SCSI bus by a SCSI cable. This includes SCSI host adapters and SCSI |
| peripherals. |
| 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 the highest ID, (7 or 15) |
| giving it priority to control the bus. |
| SCSI SCRIPTS | A SCSI programming language that works with the SCRIPTS processor |
| that is embedded on the LSI53C8XX device. These SCRIPTS reside in |
| in host computer system memory. |
The SCRIPTS processor allows users to fine tune SCSI operations with regard to unique vendor commands or new SCSI specifications. The SCRIPTS processor fetches SCRIPTS instructions from system memory to control operation of the LSI53C8XX device.
| SDMS | Storage Device Management System. An LSI Logic software product that |
| manages SCSI system I/O. |
A hardware specification for connecting SCSI devices. It references each | |
SCSI | SCSI signal to a common ground. This is the most common method (as |
| opposed to differential SCSI which uses a separate ground for each |
| signal). |
| STA | SCSI Trade Association. A group of companies that cooperate to |
| promote SCSI parallel interface technology as a viable mainstream I/O |
| interconnect for commercial computing. |
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.
System BIOS Controls the
Glossary of Terms and Abbreviations |