Compaq AA-RHGWC-TE manual 3 TL894 Tape Library Internal Cabling

6.Press and release the SELECT button again to choose SCSI Address and verify that the following information is shown in the SDA:

Menu: SCSI Address Robotics

7.Use the down arrow button to bypass the Robotics submenu and verify that the following information is shown in the SDA:

Menu: SCSI Address Drive 0

8.Use the up and down arrow buttons to select the drive number to set or change.

9.When you have the proper drive number displayed on line 2, press and release the SELECT button and verify that the following information is shown in the SDA:

Menu: Drive 0

SCSI ID 0

10.Use the up and down arrow buttons to select the desired SCSI ID for the selected drive.

11.When the desired SCSI ID is displayed on line 2, press and release the SELECT button.

12.Repeat steps 8 through 11 to set or change all other tape drive SCSI IDs.

13.Press and release the up or down button to clear the resulting display from the command.

14.Press and release the up or down button and the SELECT button simultaneously and verify that System On-line or System Off-line is displayed in the SDA.

8.9.3 TL894 Tape Library Internal Cabling

The default internal cabling configuration for the TL894 tape library has the robotics controller and top drive (drive 0) on SCSI bus port 1. Drive 1 is on SCSI bus port 2, drive 2 is on SCSI port 3, and drive 3 is on SCSI bus port 4. A terminator (part number 0415619) is connected to each of the drives to provide termination at that end of the SCSI bus.

This configuration, called the four-bus configuration, is shown in

Figure 8–12. In this configuration, each of the tape drives, except SCSI bus drive 0 and the robotics controller, requires a SCSI address on a separate SCSI bus. The robotics controller and drive 0 use two SCSI IDs on their SCSI bus.

Configuring a Shared SCSI Bus for Tape Drive Use 8–39