Compaq AA-RHGWC-TE manual Compaq 20/40 GB DLT Tape Drive

8.3 Compaq 20/40 GB DLT Tape Drive

The Compaq 20/40 GB DLT Tape Drive is a Digital Linear Tape (DLT) tabletop cartridge tape drive capable of holding up to 40 GB of data per Compactape IV cartridge using 2:1 compression. It is capable of storing/retrieving data at a rate of up to 10.8 GB per hour (using 2:1 compression).

The Compaq 20/40 GB DLT Tape Drive uses CompacTape III, CompacTape IIIXT, or CompacTape IV media.

It is a narrow, single-ended SCSI device, and uses 50-pin, high-density connectors.

For more information on the Compaq 20/40 GB DLT Tape Drive, see the following Compaq documentation:

•Compaq DLT User Guide

•DLT Tape Drive User Guide Supplement

The following sections describe how to prepare the Compaq 20/40 GB DLT Tape Drive for shared SCSI bus usage in more detail.

8.3.1 Setting the Compaq 20/40 GB DLT Tape Drive SCSI ID

As with any of the shared SCSI devices, the Compaq 20/40 GB DLT Tape Drive SCSI ID must be set to ensure that no two SCSI devices on the shared SCSI bus have the same SCSI ID.

The Compaq 20/40 GB DLT Tape Drive SCSI ID is set with a push-button counter switch on the rear of the unit (see Figure 8–4). Push the button above the counter to increment the address; push the button below the counter to decrement the address until you have the desired SCSI ID selected.

Only SCSI IDs in the range of 0 to 7 are valid. Ensure that the tape drive SCSI ID does not conflict with the SCSI ID of the host bus adapters (usually 6 and 7) or other devices on this shared SCSI bus.

8–10Configuring a Shared SCSI Bus for Tape Drive Use