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SCSI Connections
Assigning SCSI Device IDs
2 You can tell which SCSI IDs are currently in use by looking under the H/W Path
heading. The listing 8/16/5 scsi is the built-in SCSI bus controller. For devices
connected to the built-in SCSI bus, such as disks, the fourth number is the SCSI
ID for that device. For example, the listing 8/16/5.4.0 in the sample device list
tells you that there is a SCSI device (a disk) currently using ID 4 on the SCSI bus.
Narrow Single-Ended SCSI Device IDs
Before assigning a SCSI device ID to your drive, you need to check your
SCSI device IDs. To check what SCSI device IDs are available and assign an
ID to your device, follow these instructions which use Table 27:
1 Write in the SCSI device ID of any internal devices connect to the narrow, single-
ended SCSI bus in Table 27.
2 Write in the device ID of any eternal devices connect to the narrow, single-ended
SCSI bus.
3 Add your new drive to the table as either an internal or an external device.
NOTICE: The C1700A Magneto-Optical Autochanger uses three SCSI addresses,
and accounts for three of the seven devices allowed on the SCSI bus.
4 Check to see which SCSI device IDs are not used. You can 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.
See the drive installation documentation for information on changing the device
ID.