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Selecting the scsi id number – StorCase Technology DS100 User Manual

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DS100 User's Guide - Rev. F02

StorCase Technology, Inc.

Installation

17

Selecting the SCSI ID Number

The SCSI ID is an address number (0-7 for 8-bit protocol and 0-15 for 16-bit protocol) that is

assigned to each SCSI device. Each device in the chain must have a unique SCSI ID number.

SCSI ID 7 is usually reserved for the host controller. If the computer system is already equipped

with internal or external SCSI storage devices, some ID numbers will already be reserved. For

instance, if the computer system came with an internal SCSI hard drive, it may be designated

as SCSI device 0 (refer to the computer system documentation for additional information).

The Data Silo SCSI ID selection switch(es) is located on the rear panel of the chassis enclosure

(Figure 17). There are two (2) SCSI selection switches. Both rotating switches can be

adjusted with the provided alignment tool (older models may have pushbutton switches which

can be adjusted with the tip of a pen or straightened paper clip).

Carefully select the appropriate SCSI ID number(s) for the installed device(s). Note that some

switch settings may be invalid for your interface type. Selecting an invalid ID number, or

selecting the same number on different devices may cause unpredictable results and the

computer system may not recognize the installed device(s). If the computer system can not

recognize the boot disk, the computer system may fail to properly start-up.

Figure 17: SCSI ID Selection Switches