Selecting the Scsi ID Number

16	Installation

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 15). There are one (1), two (2), or (4) SCSI selection switches depending on the DS100 model. The rotating switches can be adjusted with the provided alignment tool.

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.

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Figure 15: SCSI ID Selection Switch

StorCase Technology, Inc.

DS100 (U320) User's Guide - Rev. A02