Scsi Bus Backplane Configurations; Configuring The Backplane With One Controller - Digital Equipment AlphaServer 1000 Rackmount Owners Manual

SCSI Bus Backplane Configurations

Storage devices are configured in a single-bus configuration. There can be up to four
devices on the same bus as the 5 1/4-inch removable media devices. The bus is driven by
a native Fast SCSI-2 controller on the system board.

Configuring the Backplane with One Controller

The following procedure describes how to connect the three fixed drives to the on-board
controller, which is the same controller that runs the CDROM drive and the tape drive, if
one is installed.
_________________________ Caution ___________________________
Avoid bending the SCSI cable when folding it.
____________________________________________________________
1. Insert the end of the SCSI cable (17-04153-01) in its system board connector.
2. Connect the SCSI cable CDROM drive connector to the rear of the CDROM drive.
3. Connect the cable to the rear of the tape drive, if one is installed.
4. Connect the cable to the fixed hard drives. A maximum of three drives can be
installed.
5. Connect the end of the SCSI cable (17-04153-01) to the lowest of the cutouts on the
rear of the system.
7. Terminate the bus connecting an external SCSI terminator (12-41667-01). See Figure
6–6.
Figure 6–6: SCSI Cable Termination
Configuring Your System
1. Optional SCSI
ports
2. SCSI
terminator
MLO-011578
AlphaServer 1000 Rackmount Owner's Guide 6-23