'> Glossary

built-in SCSI host adapter port

The SCSI port on the computer system.

bus

A signal route to which several parts of a computer system may be connected so that signals can pass between them. The SCSI bus length cannot exceed 6 meters (20 feet).

The total length of the primary SCSI bus includes the length of the external SCSI cable plus the length of the internal SCSI buses for the device(s) and the system.

The total length of additional SCSI buses (SBus cards installed in systems providing an additional SCSI host adapter port) includes the length of the external SCSI cable plus the length of the internal SCSI buses for the device(s).

daisy-chain

A means of connecting a number of devices to a controller. One cable connects the controller to the nearest of the devices. A separate SCSI cable connects the first device to the second device. This process is repeated as required. Install a regulated SCSI terminator on the SCSI host adapter port of the last SCSI device in the daisy-chain.

FSBE/S SBus card

An SBus card providing a SCSI host adapter port and an Ethernet port. When a Multi-Disk Pack (or other fast SCSI device), is connected to this card, information can transfer across the SCSI-2 bus at 10 Mbytes per second (the "fast SCSI" transfer rate).

Fast SBus Buffered Ethernet/SCSI SBus card

See FSBE/S SBus card

"fast SCSI"

The transfer rate (10 Mbytes per second) at which the disk drives in the Multi- Disk Pack can transfer information across the SCSI-2 bus at.

ID

See SCSI address.

regulated SCSI terminator

A device resembling a SCSI cable without a cord which you connect to the last unused SCSI host adapter port in the SCSI bus. You must use a regulated SCSI terminator with devices (such as the disk drives in the Multi-Disk Pack) which transfer information at the SCSI-2 transfer rate (10 Mbytes per second).

See also "fast SCSI."

SBE/S SBus card

An SBus card providing an additional SCSI host adapter port (another SCSI bus). When a Multi-Disk Pack (or other fast SCSI device) is connected to this card, information can transfer across the SCSI-2 bus up to 5 Mbytes per second. The disk drives in the Multi-Disk Pack are capable of SCSI-2 data transfers up to 10 Mbytes per second.

SBus SCSI Host Adapter card

An SBus card providing an additional SCSI host adapter port (another SCSI bus). When a Multi-Disk Pack (or other fast SCSI device) is connected to this card, information can transfer across the SCSI-2 bus up to 5 Mbytes per second. The disk drives in the Multi-Disk Pack are capable of SCSI-2 data transfers up to 10 Mbytes per second.

SBus Buffered Ethernet/SCSI SBus card

See SBE/S SBus card.

SCSI

An acronym for Small Computer Systems Interface.

SCSI address

A unique number assigned to each SCSI device on the SCSI bus. Each device on the same SCSI bus must be assigned a separate and unique SCSI address.

There are eight available addresses: 0 through 7. You can only assign SCSI addresses 0 through 6 to SCSI devices. SCSI address 7 is reserved for the SCSI processor.

SCSI bus

See bus.

SCSI chain

See daisy-chain and bus.

SCSI ID

See SCSI address.

SCSI port

See built-in SCSI host adapter, FSBE/S, SBE/S, and SBus SCSI Host
Adapter card.

SCSI terminator

See regulated SCSI terminator.