Technical data

8.9 Preparing the TL894 DLT Automated Tape Library for
Shared SCSI Bus Usage
The topics in this section provide information on preparing the TL894 DLT
automated tape library for use on a shared SCSI bus in a TruCluster Server
cluster.
______________________ Note _______________________
To achieve system performance capabilities, we recommend
placing no more than two TZ89 drives on a SCSI bus segment.
We also recommend that storage be placed on shared SCSI buses
that do not have tape drives.
The TL894 midrange automated DLT library contains a robotics controller
and four differential TZ89 tape drives.
The following sections describe how to prepare the TL894 in more detail.
8.9.1 TL894 Robotic Controller Required Firmware
Robotic firmware Version S2.20 is the minimum firmware revision that is
supported in a TruCluster Server cluster. For information on upgrading
the robotic firmware, see the Flash Download section of the TL81X/TL894
Automated Tape Library for DLT Cartridges Diagnostic Software User’s
Manual.
8.9.2 Setting TL894 Robotics Controller and Tape Drive SCSI IDs
The robotics controller, and each tape drive must have the SCSI ID set
(unless the default is sufficient). Table 8–9 lists the default SCSI IDs.
Table 8–9: TL894 Default SCSI ID Settings
SCSI Device SCSI Address
Robotics Controller
0
Tape Drive 0
2
Tape Drive 1
3
Tape Drive 2
4
Tape Drive 3
5
To set the SCSI ID for the TL894 robotics controller, follow these steps:
1. Press and release the Control Panel STANDBY button and verify that
the SDA (Status Display Area) shows System Off-line.
8–38 Configuring a Shared SCSI Bus for Tape Drive Use