公开(公告)号：US20220413767A1

公开(公告)日：2022-12-29

申请号：US17822806

申请日：2022-08-29

Applicant: FUJIFILM CORPORATION

Inventor： Michitaka KONDO ,  Yutaka OISHI ,  Takashi MIYAMOTO ,  Terue WATANABE ,  Koji MATSUMURA ,  Yuko UNO

IPC: G06F3/06

Abstract: An information processing device performs control to record, out of a plurality of pieces of data to be recorded on a plurality of magnetic tapes, a data group in which a value corresponding to a size of a data group for which a storage period is within a predetermined range is equal to or more than a threshold value and a data group in which the value is less than the threshold value, on magnetic tapes different from each other.

公开(公告)号：US20210350824A1

公开(公告)日：2021-11-11

申请号：US17380023

申请日：2021-07-20

Applicant: FUJIFILM CORPORATION

Inventor： Michitaka KONDO

IPC: G11B5/008 ,  G11B20/12

Abstract: A recording device includes a first derivation unit that derives relevance of positions between different virtual blocks on a recording medium, a second derivation unit that derives inter-data relevance representing a possibility that plural items of data to be recorded on the recording medium are read out in parallel, a third derivation unit that uses a difference between the relevance of the positions and the inter-data relevance to derive a block for recording each of the plural items of data, and a control unit that performs control of recording the plural items of data on the recording medium according to the block derived by the third derivation unit for each of the plural items of data.

公开(公告)号：US20230266886A1

公开(公告)日：2023-08-24

申请号：US18167048

申请日：2023-02-09

Applicant: FUJIFILM CORPORATION

Inventor： Yutaka OISHI ,  Michitaka KONDO ,  Misaki OTSUKA ,  Yuko MASUDA

IPC: G06F3/06

CPC classification number: G06F3/0619 ,  G06F3/0659 ,  G06F3/0686

Abstract: An information processing apparatus executes processing of making sizes of a plurality of pieces of data the same by adding dummy data to data other than data having a maximum size among the plurality of pieces of data, generates parity data based on the plurality of pieces of data to which the dummy data is added, and selects the magnetic tapes as recording destinations of the plurality of pieces of data and the parity data from the plurality of magnetic tapes such that a difference in a size of at least one of the dummy data or the parity data to be recorded on each of the plurality of magnetic tapes is minimized.

公开(公告)号：US20230177010A1

公开(公告)日：2023-06-08

申请号：US18165941

申请日：2023-02-08

Applicant: FUJIFILM CORPORATION

Inventor： Yutaka OISHI ,  Michitaka KONDO ,  Yuko UNO

IPC: G06F16/174 ,  G06F40/205

CPC classification number: G06F16/174 ,  G06F40/205

Abstract: An information processing apparatus receives a first object list corresponding to a first prefix from each of a plurality of storage nodes, compares, for an object that has a delimiter at the end among objects included in each of the first object lists, a portion obtained by excluding the delimiter at the end with a second prefix included in the first object list received from the other storage node, and removes redundancy in a case where the portion obtained by excluding the delimiter at the end and the second prefix are redundant with each other and then transmits a second object list obtained by merging each of the first object lists to a user terminal.

公开(公告)号：US20230065229A1

公开(公告)日：2023-03-02

申请号：US17815946

申请日：2022-07-29

Applicant: FUJIFILM CORPORATION

Inventor： Yutaka OISHI ,  Michitaka KONDO ,  Misaki OTSUKA ,  Yuko MASUDA

IPC: G06F3/06

Abstract: An information processing apparatus performs, in a case where the same data is recorded in each of a plurality of storage pools each of which includes a plurality of generations of magnetic tapes and each for which a priority representing a degree to which a relatively-new-generation magnetic tape is used with priority is set, control of recording data recorded in a relatively-old-generation magnetic tape of a storage pool of which the priority is relatively high, in a relatively-old-generation magnetic tape of a storage pool of which the priority is relatively low.

公开(公告)号：US20230051963A1

公开(公告)日：2023-02-16

申请号：US17813326

申请日：2022-07-18

Applicant: FUJIFILM CORPORATION

Inventor： Yutaka OISHI ,  Michitaka KONDO ,  Misaki OTSUKA ,  Yuko MASUDA

IPC: G06F3/06

Abstract: An information processing apparatus selects a magnetic tape as a data migration target from among a plurality of migration-source magnetic tapes based on an index value correlated with a read frequency of valid data recorded in the magnetic tape, the index value being calculated for each of the magnetic tapes, specifies valid data recorded in the selected magnetic tape, and performs control of migrating the valid data to a migration-destination magnetic tape.

公开(公告)号：US20220413746A1

公开(公告)日：2022-12-29

申请号：US17822807

申请日：2022-08-29

Applicant: FUJIFILM CORPORATION

Inventor： Michitaka KONDO ,  Yutaka OISHI ,  Takashi MIYAMOTO ,  Terue WATANABE ,  Koji MATSUMURA ,  Yuko UNO

IPC: G06F3/06

Abstract: A transfer device is a transfer device that distributes and transfers a plurality of pieces of data to a plurality of information processing devices that perform control to record data on a magnetic tape, in which the transfer device transfers data to the plurality of information processing devices such that the number of pieces of data is leveled between the plurality of information processing devices, and transfers a plurality of pieces of data of which a value indicating a probability that a plurality of pieces of data are read within a predetermined period is a threshold value or greater, to the same information processing device.

公开(公告)号：US20220406329A1

公开(公告)日：2022-12-22

申请号：US17821800

申请日：2022-08-24

Applicant: FUJIFILM CORPORATION

Inventor： Michitaka KONDO ,  Yutaka OISHI ,  Takashi MIYAMOTO ,  Terue WATANABE ,  Koji MATSUMURA ,  Yuko UNO

IPC: G11B5/008 ,  G11B15/26

Abstract: An information processing device (10) includes at least one processor. The processor divides data with a certain size or larger, which is specified on the basis of a read-out history, into a plurality of pieces of partial data, and performs control to distribute and record the plurality of pieces of partial data with respect to a plurality of magnetic tapes, respectively.

公开(公告)号：US20220208218A1

公开(公告)日：2022-06-30

申请号：US17694612

申请日：2022-03-14

Applicant: FUJIFILM CORPORATION

Inventor： Michitaka KONDO

IPC: G11B5/008

Abstract: A recording device including at least one processor, wherein the processor is configured to: acquire, for attached information attached to each of a plurality of recording target data recorded on a recording medium, a first relevance degree according to a frequency at which data other than the recording target data attached with information having the same contents as the attached information is read out within a period determined in advance; derive, for each combination of a plurality of recording target data, a second relevance degree representing a possibility that the plurality of recording target data included in the combination is read out within the period based on the first relevance degree; and classify the plurality of recording target data into groups based on the second relevance degree and perform control of recording the classified data on the recording medium for each group.

公开(公告)号：US20230185764A1

公开(公告)日：2023-06-15

申请号：US18165280

申请日：2023-02-06

Applicant: FUJIFILM CORPORATION

Inventor： Yutaka OISHI ,  Michitaka KONDO ,  Yuko UNO

IPC: G06F16/13 ,  G06F16/182

CPC classification number: G06F16/13 ,  G06F16/182

Abstract: An information processing apparatus sequentially receives a first object list corresponding to a first prefix from each of a plurality of storage nodes, removes, in a case where a processed storage node exists, a second prefix held by the processed storage node from the first object list received from a storage node being processed, receives a second object list including objects of which the number is decreased by removal of the second prefix from the storage node being processed, and transmits, to a user terminal, an object list obtained by adding the second object list to the first object list from which the second prefix is removed.