G11B27/002

Tape reposition management in a tape data storage drive

In one aspect of tape repositioning management in accordance with the present description, in response to loading a tape in a tape drive, mounting the tape linear tape file system (LTFS) is initiated including reading an index partition on the tape to extract metadata for mounting the tape LTFS, and prior to accessing a data area of the tape in response to any application access request, the tape is repositioned within a data partition to read a vHRTD (virtual High Resolution Tape Directory) recorded in an EOD (End of Data) portion such as an EOD data set, for example, of the data partition. The EOD portion is read to retrieve the vHRTD to facilitate application requested accesses to the tape. In one embodiment, repositioning and stopping the tape at the beginning of the data partition after reading the index partition containing metadata is bypassed.

Storage control apparatus and storage control method
11688422 · 2023-06-27 · ·

A storage control apparatus controls a tape apparatus including a plurality of tape drives. The storage control apparatus is configured to calculate, when causing the tape apparatus to execute write processing of dividing write data into a predetermined size and writing to a plurality of magnetic tapes, a write start position of the write data for each of the plurality of magnetic tapes where the write start position being different in each of the plurality of magnetic tapes and instruct the tape apparatus with the write start positions, and specify, when a reading range is designated, a read start position indicating a head of data in the reading range for each magnetic tape, and instruct the tape apparatus to read data in the reading range in an order from a magnetic tape of which the read start position is closer to an end of the magnetic tape.

Randomly accessible visual information recording medium and recording method, and reproducing device and reproducing method

Access point pictures designated as randomly accessible positions are I pictures or P pictures. Information indicating the decoding sequence (I1, P1, B1, B2, B3, B4, P2, . . . ) of pictures functioning as access points and attribute information (picture_type) indicating whether a picture functions as an access point or is necessary for decoding of the access point following a given access point are recorded on the video information recording medium. Random access is possible even if the GOP interval is lengthened.

Randomly accessible visual information recording medium and recording method, and reproducing device and reproducing method

Access point pictures designated as randomly accessible positions are I pictures or P pictures. Information indicating the decoding sequence (I1, P1, B1, B2, B3, B4, P2, . . . ) of pictures functioning as access points and attribute information (picture_type) indicating whether a picture functions as an access point or is necessary for decoding of the access point following a given access point are recorded on the video information recording medium. Random access is possible even if the GOP interval is lengthened.

METHODS AND SYSTEMS FOR ALTERING VIDEO CLIP OBJECTS

The present disclosure relates generally to content delivery techniques in audio-visual streaming systems. The techniques include altering video or audio portions of media content based on user input or interaction. The techniques further include altering text or messaging distributed to multiple users based on user input.

High resolution tape directory (HRTD) stored at end of data in an index partition

In one embodiment, a method includes writing a file into a data partition of a tape medium, writing a pointer of the written file in an index partition and creating a high resolution tape directory (HRTD) including detailed location information of data in a data partition. The method also includes storing the HRTD as part of end of data (EOD) of the index partition in response to a tape cartridge housing the tape medium being unloaded. The storing the HRTD as part of the EOD of the index partition includes requesting movement of the tape medium to the index partition in order to update an index file after changes have occurred to data in the data partition, writing an updated index file into the index partition concurrent to writing an updated HRTD into the EOD of the index partition, and requesting for the tape cartridge to be unloaded.

Information processing device, information processing method, and program
09837121 · 2017-12-05 · ·

There is provided an information processing device including a data processing section configured to perform processing of playing back content according to a feature image, based on detection of the feature image from a captured image acquired by a capturing of an imaging section, and a specifying section configured to specify a resume point, which is a position of playing back the content, according to a timing at which the detection of the feature image is impossible. The data processing section performs the playback of the content from a position corresponding to the resume point, according to re-detection of the feature image after the detection of the feature image becomes impossible.

METHOD AND APPARATUS FOR PLAYING BACK RECORDED VIDEO
20170345458 · 2017-11-30 · ·

A method and an apparatus for playing back recorded video from a temporal position within a temporal range of the recorded video is disclosed. The recorded video including intra frames and inter frames and the recorded video including video sequences having different frame rates. The method comprises receiving a request for playing back the recorded video from a specific temporal position recorded in the recorded video, identifying an intra frame at an earlier temporal position in the recorded video than the specific temporal position received in the request, playing back the recorded video in a first mode from the identified intra frame, and playing back the recorded video in a second mode from the specific temporal position in the recorded video when the playing back of the recorded video in the first mode have arrived at the specific temporal position of in the recorded video.

Method of writing a file to a plurality of media and a storage system thereof

In one embodiment, a storage system configured for reading a file written to a plurality of tape media includes at least two tape drives and a read/write control. The read/write control is configured to load a tape medium into a tape drive, and read metadata from the loaded tape medium and determine from the metadata whether the tape medium is a parent tape medium or a child tape medium for the file. The read/write control is also configured to retrieve ID information on the parent tape medium from the metadata saved in the child tape medium in response to a determination that the loaded tape medium is a child tape medium, and load the parent tape medium identified by the retrieved ID information into another tape drive. Moreover, the read/write control is configured to read a written first file part based on metadata saved in the loaded parent tape medium.

INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, INFORMATION PROCESSING PROGRAM, AND MAGNETIC TAPE CARTRIDGE
20230176756 · 2023-06-08 ·

An information processing apparatus performs a control of recording identification information of a storage pool in at least one of a management area of a magnetic tape belonging to the storage pool or a recording medium other than a magnetic tape that is provided in a magnetic tape cartridge including the magnetic tape, the storage pool being included in a plurality of storage pools in which the same data is recorded by being multiplexed with a multiplicity of one or more, and the identification information being different for each storage pool in a pool group and being the same information between storage pools in pool groups different from each other according to a multiplexing order of the storage pool.