Scsi Bus Length - Sun Microsystems SPARCstorage Library Installation And User Manual

SCSI Bus Length

Computing SCSI Bus Lengths
A bus is a signal route to which several parts of a computer system may be
connected so that signals can pass between them. The total length of a SCSI bus
includes:
•
The length of the external SCSI cable plus
•
The length of the internal SCSI buses for the device and the system
Your desktop system performance is reliable with a maximum SCSI bus length
of 20 feet (6 meters), shown in Figure B-1. The internal signal path of your
system unit and the external SCSI cables must not exceed this maximum
length. If this length is exceeded, the system will not run in a reliable manner.
Host SCSI peripheral
Figure B-1 Maximum SCSI Bus Length
When connecting the tape library to your system, find the total SCSI bus length
for your configuration. To do this, add the length of the internal bus lengths of
each device of the system to the length of the external SCSI cable, which can
measure either 0.8, 2, or 4 meters in length. The total length must be less than
20 feet (6 meters).
Small Computer Systems Interface Information
SCSI peripheral
max. 6 meters
B
SCSI peripheral
B-3