Importance

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Abstract

A data storage system has a media cartridge library subsystem. The subsystem includes a cartridge storage array which has receptacles for removably receiving cartridge holding bins. Each bin stores a plurality of cartridges in slots. The slots are arranged to open to a transport system in the subsystem such that the bins held in the receptacles constitute a storage array of cartridges. Cartridges are inserted into and removed from the subsystem either by an IO bin or station or by removing and inserting cartridge containing bins. Cartridges are assignable to affinity groups; such affinity cartridges in an affinity group are stored in affinity bins. An affinity bin cannot be removed from the subsystem until all of the affinity cartridges assigned to the bin are present. Each of the bins and cartridges have bar code labels. A battery operated bar code read is transportable by the cartridge transport means for reading the bar code labels. An infrared communication system transmits information and control signals between the bar code reader and a control in the subsystem. Methods and apparatus for operating the subsystem are described.

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First Claim