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SCSI Connections
Assigning SCSI Device IDs
8 Check to see which SCSI device IDs are not used. You may use ID numbers 0
through 6 if they are not already in use. If the default ID on your drive does not
conflict with any existing drive IDs, use that ID. If your default address conflicts
with an existing drive ID, you need to assign a new SCSI device ID to your drive.
Refer to the drive’s installation documentation for information on changing the
device ID.
CAUTION: Do not use SCSI device ID 7 for any device. It is reserved for the built-in SCSI bus
controller.
Fast, Wide Differential SCSI IDs
Before assigning a SCSI device ID to your drive, you need to check your
SCSI device IDs. To check which SCSI device IDs are available and assign
an ID to your device, follow these instructions which use Table 23.
1 Write in the type of internal drives currently connected to your system under the
heading “Fast, Wide Differential SCSI Device Drives” and each drive’s SCSI de-
vice ID under the heading “Device ID.”
2 Add your new drive to the table.
3 Check to see what SCSI device IDs are not used. You may use ID numbers 0
through 6 and 8 through 15 if they are not already in use. If the default ID on your
drive does not conflict with any existing drive IDs, use that ID. If your default
address conflicts with an existing drive ID, assign a new fast, wide differential
SCSI device ID to your drive. Refer to the drive’s installation documentation for
information on changing the device ID.
CAUTION: Do not use SCSI device ID 7 for any device.
Table 23 Fast, Wide Differential SCSI Device Drives and Device ID
Fast, Wide Differential SCSI Device Drives
Device ID (Address) Number
(ID 7 not available)
1st Internal Device ______________________________ 6
2nd Internal Device ______________________________ 5
NOTICE: You can have no more than 15 SCSI devices connected to a fast, wide bus.