SCSI Connections

Assigning SCSI Device IDs

2You 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:

1Write in the SCSI device ID of any internal devices connect to the narrow, single- ended SCSI bus in Table 27.

2Write in the device ID of any eternal devices connect to the narrow, single-ended SCSI bus.

3Add 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.

4Check 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.

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Compaq C180, C240, C200, C360, C160 manual Narrow Single-Ended Scsi Device IDs, 168