Technical data

Chapter 2: Installing the Sled-Mounted DLT2000XT Tape Drive

Follow these guidelines:

• The system must be shut down and power must be off before you install or remove

a DLT2000XT tape drive.

• Be sure the sled-to-drive connector cable is plugged into the correct SCSI channel

(either A or B).

• Leave both jumper blocks H1 and H2 on the sled board set to reﬂect single-ended

SCSI channel operation, regardless of which channel is plugged into the drive (see

Figure 2-9). For installation in a SCSIBox 2, instructions are given for rejumpering if

necessary.

Note: Incorrect jumpering on an unused jumper block can cause unwanted noise on

the bus.

• For best system performance, use a dedicated SCSI bus for each DLT2000XT tape

drive.

• Installing more than two DLT2000XT tape drive drives on the same SCSI bus can

adversely affect performance.

This section explains

• installing the DLT2000XT tape drive in a deskside system drive bay

• installing the DLT2000XT tape drive in a rackmount (stubby) SCSIBox 2

• installing the DLT2000XT tape drive in a Challenge Vault Rack SCSIBox 2

Installing the DLT2000XT Tape Drive in a Deskside Challenge or

Onyx Drive Bay

The factory shipped your deskside Challenge or Onyx system with channel A conﬁgured

as single-ended and B as differential. If the system has been modiﬁed, or if you are

uncertain as to the conﬁguration of SCSI channels A and B, you must remove an existing

single-ended drive. Follow these steps:

1. Pull the locking lever on the drive sled to the left and pull the drive and sled

assembly gently out of the rack.

2. Verify which channel the single-ended device is connected to and use that same

channel for the DLT2000XT tape drive.

3. Match the conﬁguration of the new DLT2000XT tape drive’s adapter board with the

single-ended channel.