Adaptec 2940U2W Przewodnik Instalacji Pobierz pdf (Strona 2)

Bus Segments on the SCSI Card 2940U2W

The SCSI Card 2940U2W features Adaptec SpeedFlex™ technology.

SpeedFlex technology ensures that you get the most performance from

your Ultra2 SCSI peripherals by electronically isolating the Ultra2 SCSI

segment from the Ultra SCSI segment on the SCSI bus. With the

SpeedFlex advantage, the SCSI Card 2940U2W can support Ultra2

SCSI peripherals at speeds up to 80 MBytes/sec while simultaneously

supporting Wide Ultra/Ultra (legacy) peripherals at speeds up to 40

MBytes/sec.

Attaching Wide Ultra/Ultra SCSI peripherals to the Ultra2

SCSI segment of the SCSI bus causes the Ultra2 SCSI segment and

any attached peripherals to drop to Ultra SCSI performance levels

(40 MBytes/sec). Attaching only Ultra2 peripherals to the Ultra2

segment, ensures that all peripherals on the Ultra2 segment will

perform at Ultra2 performance levels (80 MBytes/sec).

Attaching an Ultra2 peripheral to the Ultra SCSI segment causes the

Ultra2 peripheral to drop to Ultra SCSI performance levels instead

of Ultra2 SCSI performance levels at which it is designed to run.

NOTE

Ultra2 SCSI

Segment

68-pin External

Ultra2 Connector

68-pin Internal

Ultra2 Connector

68-pin Internal

Wide Ultra Connector

50-pin Internal

Ultra Connector

Ultra SCSI

Segment

AIC-3860

AIC-7890

1 2 3 4 5 6 7 ... 13 14

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Adaptec 2940U2W Przewodnik Instalacji Strona 2