Adaptec AHA-2940 - SCSI Card Installationsanleitung PDF herunterladen (Seite 4)

your hard disk and other SCSI devices, refer to the

device’s documentation.

The host adapter supports the SCSI Configured

AutoMatically (SCAM) protocol, which assigns

SCSI IDs dynamically and resolves SCSI ID conflicts

automatically at bootup. If your system includes

SCSI disk drives or other devices that support

SCAM, you do not need to manually assign SCSI IDs

to these devices. To enable SCAM support, see Con-

figuring the Host Adapter on page 7.

Most SCSI devices currently in use, however, do not

support SCAM. The SCSI IDs on these devices must

be set manually. To change the SCSI IDs on these

devices, refer to the device’s documentation.

Note: If you plan to boot your computer

from a SCSI device attached to the host

adapter, set the Boot Target ID setting in the

SCSISelect utility to correspond to the SCSI

ID of the device you are booting from (see

Configuring the Host Adapter on page 7).

SCSI Terminators

To ensure reliable communication, the SCSI bus

must be properly terminated. Termination is con-

trolled by a set of electrical resistors, called termina-

tors. Terminators must be placed (or enabled) at the

two extreme ends of the SCSI bus. All devices that lie

between the ends must have their terminators

removed (or disabled).

Terminating the AHA-2940Ultra

Termination on the AHA-2940Ultra itself is con-

trolled by software commands via the SCSISelect util-

ity. The default setting is Automatic, which works like

this:

■ If the AHA-2940Ultra detects that a cable is con-

nected to either its internal or external SCSI con-

nector, then it enables its terminators (the

AHA-2940Ultra is at the end of the SCSI bus).

1 2 3 4 5 6 7 8 9 ... 13 14

Keine Kommentare

Adaptec AHA-2940 - SCSI Card Installationsanleitung Seite 4