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Using Special Features in Libraries 27
Using Special Features in
Libraries
Introduction
This chapter contains information that relates to placing an HP Ultrium drive
in an automated device, such as an autochanger or a tape library.
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The “Automation Control Interface (ACI)” described below allows the
activities of the drive to be coordinated within a library.
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“Configuring Autoload and ACI-Controlled Loads” on page 44 tells you
how to configure whether automatic or ACI controlled loads and unloads
occur.
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“Using Cartridge Memory (LTO-CM)” on page 47 describes the EEPROM
embedded in every Ultrium tape cartridge, part of which is available for
use by applications.
Drives for inclusion in automated devices have different front panels from
individual drives.
Automation Control Interface (ACI)
The Automation Control Interface (ACI) allows the activities of the drive to be
coordinated within a library. The protocol has been designed so that it can be
made into a standard feature of tape drives. It provides a rich and extensible
functionality to allow automation manufactures to add value in their
application of it.
The interface is a serial bus with additional control lines, designed to connect
the Ultrium tape drive to an automation controller in a tape library. Each tape
drive position has a separate automation controller. An RS-422 serial port on
the rear of the drive allows for ACI connection—see page 101 for details.
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