Spectra Logic Corporation

Michael Cranna

Christopher Anthony Pollard

Disclosed are methods and apparatuses for transferring storage media between storage units comprising an expandable multi-unit storage system. The expandable storage apparatus comprises a first and second storage unit comprising media support locations. The support locations are capable of supporting at least one storage media element. At least one storage device is adapted to store and retrieve data to and from the storage media element associated with at least one of the storage units. At least one robotic system is associated with each of the storage units. A media pass-through transfer device is substantially disposed in the first storage unit and is adapted to transfer the storage element between the first and second storage units wherein the media pass-through transfer device is capable of temporarily extending into the second storage unit. The robotic system is capable of transferring the storage media element between at least the support locations, the storage device and the media pass-through transfer device.

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Loveland, CO, United States of America

Michael Cranna