Abstract: An apparatus and method are disclosed to read from a portable data storage cartridge data position information, and to communicate that data position information to a data drive unit during transport of the cartridge to that data drive unit.

Abstract: Disclosed are a system, a method, and a computer program product to provide for the expansion of an automated data storage library by the use of a multi-purpose frame. When the library is expanded, the multi-purpose frame functions as a service bay for the accessor. The multi-purpose frame that functions as a service bay is easily converted to a supplementary storage frame, when the library is expanded, to accommodate additional data storage media shelves and/or data storage drives. Because the multi-purpose frame is easily converted for use as either a service bay or a supplementary storage frame the relocation of library frames is avoided, thus simplifying and improving the expansion of the library.

Abstract: A robotic accessor in a data storage and retrieval system includes a memory reading device to read data position information from a memory device disposed within a portable data storage cartridge. A portable data storage cartridge including a memory device and data position information stored in that memory device. An automated data storage and retrieval system which includes one or more of Applicants' robotic accessors and one or more of Applicants'portable data storage cartridges.

Abstract: An automated system having removable system components is self-configured, first, determining whether configuration data is available, for example, in a non-volatile memory. If available, the processor reads a system identifier of the configuration data, compares the read and a sensed system identifier, and, if they match, ends the self-configuration. Otherwise, the system senses the removable system components, configuring the system. A sensor is moved to sense the presence or absence each of the removable system components at substantially the expected location of the component. The system operates a movable sensor to calibrate a relative position with respect to the calibration mark.