Internal scsi buses on the ws 9650 – Apple Mac 8600 User Manual
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Basics
Ultra Wide SCSI - 30
Internal SCSI Buses on the WS 9650
There are three SCSI buses on the WS 9650: SCSI-3 Ultra
Wide (68-pin); SCSI-2 Fast (50-pin); and SCSI-1 Slow
(50-pin). This section describes these three SCSI buses and
how units are configured at the factory.
All internal hard drives in the WS 9650 are connected to the
68-pin Ultra Wide SCSI cable, which attaches to the Ultra
Wide JackHammer•SE PCI card. This is known as the SCSI-3
Ultra Wide bus. A maximum of four devices can be attached
on this SCSI bus, and the maximum data transfer rate is 40
MB/s.
The CD-ROM drive and optional tape drive are connected to
the 50-pin, SCSI-2 Fast bus. A total of seven drives can be
attached to this bus, which transfers data at a maximum rate
of 10 MB/s.