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Selecting the unit number – StorCase Technology DE75i-SW User Manual

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DE75i-SW User's Guide - Rev. A01

StorCase Technology, Inc.

Installation

13

10.

Replace any expansion boards that may have been removed earlier. Replace the

system cover according to the manufacturer’s instructions.

11.

Reconnect any system or peripheral cables removed earlier.

12.

If the DE75i-SW has been installed into an external expansion chassis, connect the

SCSI and power cables to the chassis. If the expansion chassis is at the end of a

daisy chain, make certain that it is properly terminated. Refer to the computer system

and expansion chassis manuals for information on how to do this. Turn on the

expansion chassis power before turning on the computer system power.

13.

Turn ON power to the computer. If the installation has been successful, and all cables

have been properly attached, the system should boot normally. Although the

computer may not recognize the DE75i-SW yet, the appropriate front panel LED

indicators on the DE75i-SW should illuminate. If the system does not boot properly,

there could be a SCSI ID conflict. Refer to the following section Selecting the Unit

Number.

NOTE: The lock on the DE75i-SW receiving frame functions as a lock and a DC power

switch for the carrier unit. The lock must be engaged (turned

counterclockwise) in order to supply power to the carrier and installed drive

unit.

14.

The new drive may need to be formatted or initialized prior to use with the operating

system and applications software. Additionally, an appropriate driver may need to

installed for the host controller to recognize the newly installed device. Refer to the

drive and/or computer manufacturer's documentation for formatting information.

Refer to the host controller instructions for driver information.

Selecting the Unit Number

Each SCSI device on the computer system requires a separate SCSI ID number.

16-bit SCSI interface protocol permits 16 (0-15) unique SCSI ID numbers. Usually, ID7 is

reserved for the host controller. If the computer system has any internal or external SCSI

devices, some ID numbers may already be reserved. For instance, if the computer system

is already equipped with an internal SCSI hard drive, the drive may be designated as SCSI

device "0". Refer to the computer system documentation for additional information.

1. Verify that power is turned on to the DE75i-SW receiving frame by turning on the

computer or external expansion chassis. A number should appear in the unit ID display

window if the carrier is locked into place.

2. Unlock the DE75i-SW carrier from the receiving frame. The unit ID number will begin

flashing, indicating that the drive is spinning down. DO NOT REMOVE THE CARRIER

FROM THE RECEIVING FRAME WHILE THE UNIT ID NUMBER IS FLASHING. The length

of time that the unit ID number flashes is controlled by a small timing switch located on

the side of the receiving frame. Refer to Appendix B for information on adjusting the

timer (Figure B-3).