Table 8–4: Hardware Components Used to Create the Configuration Shown in Figure 8–5 (cont.)
Callout Number | Description |
9 | 199629-002 or 189636-002 (68-pin high density to 50-pin |
| high density 1.8-meter cables) |
| |
10 | 341102-001 50-pin high density terminator |
aThe maximum length of the BN38C (or BN38D) cable on one SCSI bus segment must not exceed 25 meters.
bThe maximum length of the BN37A cable must not exceed 25 meters.
cThe maximum combined length of these cables must not exceed 25 meters.
8.4 Compaq 40/80-GB DLT Drive
The Compaq 40/80-DLT Drive is a Digital Linear Tape (DLT) table top cartridge tape drive that can hold up to 80 GB of data per DLT-IV cartridge using 2:1 compression. It can store and retrieve data at a rate of up to 43.2 GB per hour (using 2:1 compression).
The Compaq 40/80-DLT Drive uses DLT-III, DLT-IIIXT, or DLT-IV media.
This tape drive works with either a single-ended or low-voltage differential (LVD) host bus adapter using 68-pin high-density connectors. The single-ended voltages are either 0V or +5V. The low-voltage differential voltages range from -2.5V to +2.5V, a 5.0V differential. It will not work with high voltage differential (-5.0V to +5.0V) host bus adapters. Therefore, you cannot connect the KZPSA-BB or KZPBA-CB host bus adapters directly to the Compaq 40/80-DLT Drive. Instead, you must use a DWZZB-AA signal converter to convert the high voltage differential to single-ended SCSI.
For more information on the Compaq 40/80-DLT Drive, see the Compaq StorageWorks 40/80 DLT Drive Reference Guide.
The following sections describe how to prepare the Compaq 40/80-GB DLT Drive in more detail.
8.4.1 Setting the Compaq 40/80-GB DLT Drive SCSI ID
As with any of the shared SCSI devices, the Compaq 40/80-GB DLT Drive SCSI ID must be set to ensure that no two SCSI devices on the shared SCSI bus have the same SCSI ID.
You set the Compaq 40/80-GB DLT Drive SCSI ID with a pushbutton counter switch on the rear of the unit. Push the button above the counter to increment the address; push the button below the counter to decrement the address until you select the desired SCSI ID.
