Spectra Logic 10000 User Manual download pdf (Page 31)

Chapter 3. Preparing the Library

Split-Bus Configuration

The library firmware version 5.00 (and later) has the ability to logically split the library

into two separately addressable logical library systems. This feature allows two host

machines to share the same library hardware. Slots can be split on boundaries of 10.

The tape drive split occurs on the SCSI bus boundary. The D1 and D2 (SCSI Port 1)

drive positions belong to Logical Library 1. The D3 and D4 (SCSI Port 2) drive

positions belong to Logical Library 2. If each logical library is to have a single tape

drive connected, they need to be installed in drive positions D1 and D3.

The split library feature is supported with both serial and SCSI robotics command

interfaces; you can have both hosts issue commands to each logical library via SCSI

connections, or have one host issue commands to logical Library 1 via a serial port

connection and one host issue commands to logical Library 2 via a SCSI connection.

Caution: For a split logical library with only two drives, install the tape

drives in the first and third drive positions, or the library will not

function correctly.

To enable split bus configuration and configure the number of slots for each logical

library, follow this procedure:

1. From the main screen, press CONFIG > MORE > MORE. The third Configuration

screen appears.

The Library 2 Slots and SCSI Bus 2 ID settings determine the logical library

configuration.

Figure 3-1 SCSI connectors for Port 1 and Port 2.

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Spectra Logic 10000 User Manual Page 31