Library apparatus

摘要

An MPU of a second subcontroller in a library apparatus executes an intra-memory apparatus construction data creation program, thereby controlling operations of an accessor and of a bar code reader. Unit construction data is thereby obtained from a bar code label attached to each unit. It is therefore feasible to automatically input the data about a position where a drum unit is disposed, and the number of magnetic tape cartridges that can be housed in the drum unit.