Compaq AA-RHGWC-TE manual Cabling the TL891 or TL892 MiniLibraries

4.Select the tape drive (DLT0 Bus ID: or DLT1 Bus ID:) or library robotics (LIB Bus ID:) for which you wish to change the SCSI bus ID. The default SCSI IDs are as follows:

•Lib Bus ID: 0

•DLT0 Bus ID: 4

•DLT1 Bus ID: 5

Use the up or down arrow button to select the item for which you need to change the SCSI ID. Press the Enter button.

5.Use the up or down arrow button to scroll through the possible SCSI ID settings. Press the Enter button when the desired SCSI ID is displayed.

6.Repeat steps 4 and 5 to set other SCSI bus IDs as necessary.

7.Press the Escape button repeatedly until the default menu is displayed.

8.7.2Cabling the TL891 or TL892 MiniLibraries

There are six 68-pin, high-density SCSI connectors on the back of the TL891. The two leftmost connectors are for the library robotics controller. The middle two are for tape drive 1. The two on the right are for tape drive 2 (if the TL892 upgrade has been installed).

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The tape drive SCSI connectors are labeled DLT1 (tape drive 1) and DLT2 (tape drive 2). The control panel designation for the drives is DLT0 (tape drive 1) and DLT1 (tape drive 2).

The default for the DLT MiniLibrary TL891 is to place the robotics controller and tape drive 1 on the same SCSI bus. A 0.3-meter SCSI jumper cable is provided with the unit. Plug this cable into the second connector (from the left) and the third connector. If the MiniLibrary has been upgraded to two drives, place the second drive on the same SCSI bus with another 0.3-meter SCSI bus jumper cable, or place it on its own SCSI bus.

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To achieve system performance capabilities, we recommend placing no more than two TZ89 tape drives on a SCSI bus.

The internal cabling of the TL891 and TL892 is too long to allow external termination with a trilink/H879-AA combination. Therefore, the TL891 or TL892 must be the last device on the shared SCSI bus. They may not be removed from the shared

Configuring a Shared SCSI Bus for Tape Drive Use 8–25