Exabyte 230D Library Installation And Operation Manual page 163

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This chapter describes demos and hardware exercises you can
perform from the operator panel by using the Demo Menu, the
Library Command Menu, and the Library Diagnostics Menu.
Elements are the physical locations in the library that can accept a
cartridge (the robot, the magazine slots, the fixed slot, and the two
tape drives).
Each element has an element index, which enables the library to
identify the elements. Many LCD functions require you to use
element indexes. For example, to move a cartridge using the
Library Command Menu, you must specify the source and
destination element indexes. The source is either a cartridge slot or
the tape drive where the robot will pick a cartridge. The destination
is either the slot or the tape drive where the robot will place the
cartridge.
Installation and Operation 149