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IBM Assigned Eight Patents

Detecting tampering of data in tape drive, and file system, high resolution tape directory, stored at end of data in index partition,optimum tape layout selection for improved error correction capability, write procedure using estimated best setting in first run, slim profile, rear docking tape drive canister, skew estimation for tape device, tape volume overwrite protection during error recovery, efficient elimination of access to data on writable storage media

Detecting tampering of data in tape drive, and file system
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,406,334) developed by Hasegawa, Tohru, Hirata, Takamasa, Imai, Naoki, Kamiya, Masanori, and Oishi, Yutaka, Tokyo, Japan, for a method of detecting tampering of data in tape drive, and file system.

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method of detecting whether data in a tape drive used in a file system is tampered is described according to one embodiment. The method includes: (a) preparing a first tape cartridge including a tape on which multiple files and archival records of index information are stored in a WORM partition, and index information is stored in the R/W partition, (b) reading and comparing the index information of the R/W partition and the last index information of the WORM partition, and (c) when these two pieces of index information do not match, determining that the index information of the R/W partition is tampered when these two pieces of index information do not match.

The patent application was filed on August 23, 2012 (14/347,183).

High resolution tape directory, (HRTD) stored at end of data in index partition
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,401,180) developed by Abe, Atsushi, Kanagawa-ken, Japan, Katagiri, Takashi, Yokohama, Japan, Nakayama, Hirokazu, Fujisawa, Japan, and Oishi, Yutaka, Kawasak, Japan, for a high resolution tape directory, (HRTD) stored at end of data in an index partition.

The abstract of the patent published by the U.S. Patent and Trademark Office states: “In one embodiment, a tape drive system includes a file system adapted for enabling sequential access to data on a tape medium, a file access controller adapted for managing the data, the file access controller including logic adapted for writing a file on the tape medium, logic adapted for writing a pointer of the written file in an index of the tape medium, wherein the pointer is managed by the file access controller, logic adapted for creating a high resolution tape directory, (HRTD) including detailed location information of data on the tape medium, and logic adapted for storing the HRTD as part of end of data, (EOD) of the index when a tape cartridge housing the tape medium is unloaded. Other systems, methods, and computer program products are described according to more embodiments.

The patent application was filed on October 12, 2012 (13/651,207).

Optimum tape layout selection for improved error correction capability
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,401,176) developed by Cideciyan, Roy D., Rueschlikon, Switzerland, Hutchins, Robert A., Tucson, AZ, and Mittelholzer, Thomas, Zurich, Switzerland, for a optimum tape layout selection for improved error correction capability.

The abstract of the patent published by the U.S. Patent and Trademark Office states: “According to one embodiment, a system for selecting an optimum tape layout to store data on a tape medium includes a processor and logic integrated with and/or executable by the processor, the logic being configured to compute a set of all minimum distances corresponding to a plurality of data set layouts, wherein each minimum distance is computed between a location of a first codeword interleave, (CWI) and locations of all other CWIs in a common sub data set, (SDS), and calculate a first performance metric associated with each possible set of parameters using the set of all minimum distances for the plurality of data set layouts, the parameters being associated with at least a tape drive and the tape medium. More systems, methods, and computer program products for selecting optimum tape layouts to store data on tape media are described in accordance with other embodiments.

The patent application was filed on February 10, 2015 (14/619,016).

Write procedure using estimated best setting in first run
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,400,604) developed by Karp, James M., Tucson, AZ, Katagiri, Takashi, Yamato, Japan, Mori, Yuhko, and Oishi, Yutaka, Kanagawa, Japan, for a write procedure using estimated best setting in first run.

The abstract of the patent published by the U.S. Patent and Trademark Office states: “In one general embodiment, a method includes receiving a request for a write operation to be performed in a tape drive, determining a capacity margin ratio of the tape drive, determining an optimum a write procedure based at least in part on the capacity margin ratio, and invoking the optimum write procedure in response to determining the optimum write procedure. The optimum write procedure is selected from the group consisting of: a backhitch write procedure, a same wrap backhitchless flush, (SWBF) write procedure, and a recursively accumulating backhitchless flush, (RABF) write procedure. Systems and computer program products configured to perform similar techniques are also disclosed.

The patent application was filed on June 10, 2015 (14/735,565).

Slim profile, rear docking tape drive canister
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,390,763) developed by McIntosh, Michael P., and Nave, Shawn M., Tucson, AZ, for a “slim profile, rear docking tape drive canister.

The abstract of the patent published by the U.S. Patent and Trademark Office states: “n one embodiment, an automated tape library includes an array of tape drive canister bays, each tape drive canister bay being configured for insertion of a tape drive canister therein, each tape drive canister supporting a tape drive. The library also includes a power system, a communications system, and a robotic accessor configured to access tape cartridges in tape drives in the array of tape drive canister bays. Each tape drive canister bay includes a latching mechanism configured to secure a tape drive canister into the tape drive canister bay. A library docking connector is configured to connect a docking connector of the tape drive canister to the power system and the communications system when the latching mechanism is in the latched close position.

The patent application was filed on September 18, 2015 (14/859,142).

Skew estimation for tape storage device
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,390,759) developed by Cherubini, Giovanni, Furrer, Simeon, Jelitto, Jens, Rueschlikon, Switzerland, and Tsuruta, Kazuhiro, Tokyo, Japan, for a skew estimation for a tape storage device.

The abstract of the patent published by the U.S. Patent and Trademark Office states: “An apparatus for operating a tape storage device comprises a tape skew estimation unit for estimating a value related to a skew of a tape storage medium arranged in the tape storage device relative to a head module of the tape storage device. A servo pattern decoder is configured to decode information encoded in a servo pattern written to one or more servo bands of the tape storage medium based on read-back signals of at least two servo readers of the tape storage device arranged for reading the servo pattern from the one or more servo bands and based on the estimated skew related value.

The patent application was filed on April 6, 2015 (14/679,070).

Tape volume overwrite protection during error recovery
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,390,750) developed by Dawson, Erika M., Reed, David C., Smith, Max D., Tucson, AZ, and Swingler, Joseph M., Phoenix, AZ, for a “tape volume overwrite protection during error recovery.

The abstract of the patent published by the U.S. Patent and Trademark Office states: “In one embodiment, a method includes detecting an error while writing data to a tape volume. The method further includes repositioning the tape volume for recovering from the error, and receiving, after the repositioning, at least a portion of the data for rewriting the at least a portion of the data to the tape volume. Further, the method includes determining, after the repositioning, a current position of the tape volume. Additionally, the method includes determining, based on the current position of the tape volume, whether the rewrite to the tape volume is allowed.

The patent application was filed on April 1, 2015 (14/676,666).

Efficient elimination of access to data on writable storage media
International Business Machines Corporation, Armonk, NY, has been assigned a patent (9,384,777) developed by Carlson, Wayne Charles, Friauf, Cheryl Marie, Tucson, AZ, Kishi, Gregory Tad, Oro Valley, AZ, Lee, Duke Andy, and Peake, Jonathan Wayne, Tucson, AZ, for a “efficient elimination of access to data on a writable storage media.

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A system provided for eliminating access to data within a writable storage media cartridge. The system comprises a writable storage media drive, such as a tape drive. The writable storage drive determines if at least a first portion of data on the writable storage media is encrypted. If it is determined that the first portion of data is encrypted then the writable storage drive shreds a second portion of data within the writable storage media cartridge related to said encrypted first portion of data. The first portion of data and the second portion are not the same portions of the writable storage media cartridge.

The patent application was filed on August 17, 2007 (11/840,911).

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