Certance LLC

Seagate Removable Storage Solutions LLC

Dell Products Inc.

Russell Allen Bauer

Turguy Goker

John Anthony Hamming

Kempton William Redhead

Robert Ralph Heinze

Walter Fehlmann

Patrick McCormack

Scott L Hanson

Armando Jaime Martinez

Sarat Krishnan

A storage subsystem backplane management system includes a storage controller and a service processor. A first backplane including a first management controller is coupled to the storage controller and the service processor. The first backplane is operable to couple a plurality of first drives to the first management controller. A second backplane including a second management controller is coupled to the first management controller. The second backplane is operable to couple a plurality of second drives to the second management controller. The first management controller communicates with the second management controller and creates a virtual management controller that presents to the storage controller and the service processor a virtual backplane including the plurality of first drives and the plurality of second drives when the plurality of first drives are coupled to the first management controller and the plurality of second drives are coupled to the second management controller.

Storage subsystem backplane management system

A method and apparatus for preventing the detachment of an end of tape from a hub filler during movement of the hub filler along a guide rail during an unloading operation of a tape drive mechanism. Detachment is prevented by a retracting tape dragging the hub filler along the guide rail, so as to maintain adequate tension that prevents detachment of the tape from the hub filler. The hub filler, which is coupled to the tape, guide arm, and guide rail, provides adequate drag force to maintain tension in the tape and prevent damage to the tape or the tape drive mechanism.

Method and apparatus of maintaining tension in a tape

A method and apparatus to quickly and correctly re-initialize a tape drive mechanism after power loss employs a non-volatile memory to store functional state data during normal operation of the tape drive mechanism. After a power loss, the functional state data is read from the non-volatile memory so that the tape drive mechanism can be properly re-initialized based on the recovered functional state data.

Method and apparatus for reinitializing a tape drive after a power loss

A method and apparatus for loading tape from a single reel tape cartridge into a take-up reel. The hub filler is securely and releaseably attached to the take-up reel upon the hub filler entering the take-up reel. This attachment provides adequate securement between the hub filler and the take-up reel for the tape to be wrapped around the take-up reel during loading of the tape without the hub filler partially ejecting from the take-up reel. By preventing the hub filler from partially ejecting from the take-up reel, damage to the tape and the tape drive loading mechanism is mitigated. Upon unloading of the tape from the tape drive, the hub filler can be readily released from its attachment to the take-up reel.

Latching mechanism for tape drive

A method of loading a tape from a single reel tape cartridge into a take-up reel. Position sensors detect position of a guide arm as a tape loading mechanism loads and unloads tapes from a single reel tape cartridge. The position sensors are accurate and eliminate problems that occur from small misalignments of hub filler access with the access of the take-up reel. Further, the position sensors enable the hub filler to consistently attach to a leader pin at the end of the tape of the single reel tape cartridge without frequent malfunctions.

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Austin, TX, United States of America

Russell Allen Bauer