StorCase Technology 4-Bay Desktop SCSI Ultra320 - Manual (Page 20)

12 Installation
StorCase Technology, Inc. InfoStation 4-Bay User's Guide - Rev. C01
Selecting the SCSI ID Number
NOTE: The InfoStation needs to be powered DOWN/UP for any SCSI ID changes to
take effect.
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).
Four (4) SCSI ID selection switches are located on the rear panel of the InfoStation enclosure
(Figures 3 & 8). These 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.
Figure 8: SCSI ID Selection Switches
0636c
BAY 1 BAY 2 BAY 3 BAY 4
Some SCSI unit ID numbers on the selection switches may be invalid for your interface type.
Valid 8-bit ID numbers include 0-7. Valid 16-bit ID numbers include 0-15 (Do not use ID7. It
is usually reserved for the host.) Refer to your drive manufacturer’s documentation for further
information.