library control software as a single library. For multi-module applications, the top library module becomes the primary master module and all other libraries become slave modules.

The library robotics pick up and place tape cartridges into an elevator so that individual tapes can be passed up or down between libraries in a multi-unit library configuration.

The 4560SLX Tape Library supports fail-over protection for multi-unit library configurations. In the event of a master module failure, a pre-selected slave module can become the fail over master. For example, if the primary master library fails, you can invoke the library system fail-over mode. In this mode, one of the connected slave units serves as the secondary master library, communicating with the host system through the SCSI interface. The source of power to the cartridge elevator drive motor is switched from the original primary master library to the newly-assigned secondary master library.

Chapter 1. Introduction 9

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IBM 4560SLX warranty Introduction