Acer PCI to Ultra SCSI RAID Controllers DAC960PG Bedienungsanleitung PDF herunterladen (Seite 18)

SCSI Cabling

2-4 DAC960PG and DAC960PJ Installation

SCSI Cabling

Each Ultra SCSI channel supports up to 15 drives.

The total allowable SCSI bus lengths will be limited to the single-ended bus

lengths shown in Table 2-1.

* SCSI Trade Association terms.

** The SCSI ID reserved for the RAID controller is not included in this total.

† The maximum number of devices allowed on a Wide Ultra SCSI channel is 8

including the controller, unless bus extender technology is used.

Table 2-1. Supported SCSI Formats and Bus Lengths

SCSI Drive Type*

Bus Speed,

Max.(MB/Sec)

Bus Width,

(Bits)

Bus Length,

Max.(Meters)

Drives** per

Channel, Max.

SCSI-1 5 8 6 7

Fast SCSI 10 8 3 7

Fast Wide SCSI 20 16 3 15

Ultra SCSI 20 8 1.5 7

Ultra SCSI 20 8 3 3

Wide Ultra SCSI 40 16 — 15†

Wide Ultra SCSI 40 16 1.5 7

Wide Ultra SCSI 40 16 3 3

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 85 86

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Acer PCI to Ultra SCSI RAID Controllers DAC960PG Bedienungsanleitung Seite 18