WO2022049831A1 - Dispositif de traitement d'informations, procédé de traitement d'informations et programme de traitement d'informations - Google Patents

Dispositif de traitement d'informations, procédé de traitement d'informations et programme de traitement d'informations Download PDF

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Publication number
WO2022049831A1
WO2022049831A1 PCT/JP2021/017591 JP2021017591W WO2022049831A1 WO 2022049831 A1 WO2022049831 A1 WO 2022049831A1 JP 2021017591 W JP2021017591 W JP 2021017591W WO 2022049831 A1 WO2022049831 A1 WO 2022049831A1
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WIPO (PCT)
Prior art keywords
information processing
objects
threshold value
total value
processor
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Application number
PCT/JP2021/017591
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English (en)
Japanese (ja)
Inventor
豊 大石
輝江 渡邊
裕史 谷川
浩司 松村
理貴 近藤
美咲 大塚
優子 宇野
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富士フイルム株式会社
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Publication date
Application filed by 富士フイルム株式会社 filed Critical 富士フイルム株式会社
Priority to JP2022546888A priority Critical patent/JPWO2022049831A1/ja
Publication of WO2022049831A1 publication Critical patent/WO2022049831A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing

Definitions

  • This disclosure relates to an information processing device, an information processing method, and an information processing program.
  • a technique for selecting a magnetic tape corresponding to a backup cycle of a virtual medium when recording a virtual medium of a magnetic disk drive on a magnetic tape is disclosed (see Japanese Patent Application Laid-Open No. 2005-050104).
  • a plurality of objects are combined into one object (hereinafter referred to as one object) in order to reduce the overhead of issuing a recording instruction command to the tape drive. It is conceivable to put them together in a "packed object") and then send the packed object to a tape drive.
  • the information processing device periodically executes a process of combining a plurality of objects into one packed object.
  • the technique described in Japanese Patent Application Laid-Open No. 2005-050104 does not relate to the technique for creating a packed object.
  • the present disclosure has been made in view of the above circumstances, and an object of the present disclosure is to provide an information processing device, an information processing method, and an information processing program capable of appropriately creating a packed object.
  • the information processing apparatus of the present disclosure is an information processing apparatus including at least one processor and controlling to record a group of objects together on a magnetic tape, and the processor has not periodically executed the processing of collecting the objects.
  • a process of comparing the total value of the number or size of the objects of the processing target object group with the threshold value is performed, and when the above number or the above total value is equal to or more than the threshold value, a packed object in which the processing target object group is put together is generated.
  • the processor may derive a threshold value according to the total value of the number or size of objects received from the external device per unit time.
  • the information processing apparatus of the present disclosure is the above-mentioned one or more time zones in the past, which is the same as the time zone in which the processor generates the packed object or the most recent predetermined period in which the processor performs the comparison processing.
  • a threshold may be derived according to the number or the total value.
  • the processor may derive a threshold value based on the time series data of the total value of the number or size of objects received from the external device.
  • the information processing apparatus of the present disclosure may be controlled by the processor to record the generated packed object on a magnetic tape.
  • the information processing method of the present disclosure is an information processing method executed by a processor included in an information processing apparatus that controls to record a group of objects together on a magnetic tape, and the processing of collecting them periodically has not been executed.
  • a process is performed to compare the total value of the number or size of objects in the process target object group with the threshold value, and when the above number or the above total value is equal to or greater than the threshold value, a packed object that summarizes the process target object group is generated. be.
  • the information processing program of the present disclosure is an information processing program for being executed by a processor included in an information processing apparatus that controls to record a group of objects together on a magnetic tape, and the processing of collecting the objects is not executed periodically. Performs processing to compare the total value of the number or size of objects in the processing target object group and the threshold value, and when the above number or the above total value is equal to or greater than the threshold value, a packed object that summarizes the processing target object group is generated. It is a thing.
  • packed objects can be created appropriately.
  • the recording / playback system 10 includes an information processing device 12 and a tape library 14.
  • Examples of the information processing apparatus 12 include a server computer and the like.
  • the tape library 14 includes a plurality of slots (not shown) and a plurality of tape drives 18, and each slot stores a magnetic tape T as an example of a recording medium.
  • Each tape drive 18 is connected to the information processing device 12.
  • the tape drive 18 writes or reads data on the magnetic tape T under the control of the information processing apparatus 12.
  • An example of the magnetic tape T is an LTO (Linear Tape-Open) tape.
  • the magnetic tape T to be written or read is loaded from the slot into a predetermined tape drive 18.
  • the magnetic tape T is unloaded from the tape drive 18 into the slot originally stored.
  • the metadata is expressed as “meta”.
  • the storage system that handles this object is called an object storage system.
  • the metadata includes, for example, object identification information such as an object key, object name, data size, and attribute information such as a time stamp.
  • the recording order of the data and the metadata when the object is recorded on the magnetic tape T is not particularly limited, and may be the order of the metadata and the data, or may be the order of the data and the metadata.
  • the information processing device 12 includes a CPU (Central Processing Unit) 20, a memory 21 as a temporary storage area, and a non-volatile storage unit 22. Further, the information processing apparatus 12 includes a display unit 23 such as a liquid crystal display, an input unit 24 such as a keyboard and a mouse, a network I / F (InterFace) 25 connected to a network, and an external I to which each tape drive 18 is connected. / F26 is included.
  • the CPU 20, the memory 21, the storage unit 22, the display unit 23, the input unit 24, the network I / F25, and the external I / F26 are connected to the bus 27.
  • the storage unit 22 is realized by an HDD (Hard Disk Drive), an SSD (Solid State Drive), a flash memory, or the like.
  • the information processing program 30 is stored in the storage unit 22 as a storage medium.
  • the CPU 20 reads the information processing program 30 from the storage unit 22, expands it into the memory 21, and executes the expanded information processing program 30.
  • the information processing device 12 controls to record an object (hereinafter referred to as "packed object"), which is a collection of objects received from an external device such as a user terminal, on a magnetic tape T.
  • an object hereinafter referred to as "packed object”
  • the information processing device 12 has an overhead due to issuing a command for recording instructions to the tape drive 18 as compared with the case where the information processing device 12 controls to record the objects one by one on the magnetic tape T without generating the packed objects. This is to reduce.
  • the information processing apparatus 12 generates a packed object that is a collection of objects received from an external device.
  • Packed objects contain headers.
  • the header contains, for example, information about the position of each object contained in the packed object in the packed object.
  • the information about this position is, for example, the number of bytes to the number of bytes of each object in the packed object.
  • the information processing apparatus 12 controls to record the generated packed object on the magnetic tape T. Specifically, the information processing apparatus 12 transmits the packed object and the command for recording instruction to the tape drive 18. As a result, the tape drive 18 records the packed object on the magnetic tape T. That is, when the information processing apparatus 12 acquires an object from the magnetic tape T, the object to be acquired is extracted from the packed object after controlling the reading of the packed object from the magnetic tape T.
  • the effective capacity referred to here means a capacity that can record an object to be stored, excluding the header of the packed object on the magnetic tape T.
  • the information processing apparatus 12 has a function of determining whether or not to perform a process of generating a packed object by using a predetermined threshold value TH.
  • the information processing apparatus 12 includes a receiving unit 40, a determination unit 42, a generation unit 44, and a control unit 46.
  • the CPU 20 executes the information processing program 30, it functions as a receiving unit 40, a determination unit 42, a generation unit 44, and a control unit 46.
  • the receiving unit 40 receives the object transmitted from the external device via the network I / F25. Further, the receiving unit 40 stores the received object in the storage unit 22.
  • the determination unit 42 periodically performs a process of comparing the total value TS and the threshold value TH of the objects of the object group to be processed, which is the object group whose summarization process has not been executed, stored in the storage unit 22. It is determined whether or not the total value TS is equal to or greater than the threshold value TH.
  • the threshold value TH in this case, for example, a predetermined value can be applied as the lower limit value of the size of one packed object.
  • the time interval T1 in which the determination unit 42 periodically performs the above determination for example, the maximum value of the total size of the objects of the object group received within the time interval T1 in the past is one packed object. The time interval that is less than or equal to the upper limit of the size can be mentioned.
  • the generation unit 44 When the determination unit 42 determines that the total value TS is equal to or greater than the threshold value TH, the generation unit 44 generates a packed object that summarizes the objects to be processed.
  • the control unit 46 controls to record the packed object generated by the generation unit 44 on the magnetic tape T.
  • the object reception process shown in FIG. 6 is executed, for example, when the information processing device 12 receives an object transmitted from an external device.
  • the object recording process shown in FIG. 7 is periodically executed, for example, at a predetermined time interval T1.
  • step S10 of FIG. 6 the receiving unit 40 receives the object transmitted from the external device via the network I / F25.
  • step S12 the receiving unit 40 stores the object received in step S10 in the storage unit 22.
  • the object reception process is completed.
  • step S20 of FIG. 7 the determination unit 42 performs a process of comparing the total value TS of the object size of the object group to be processed stored in the storage unit 22 with the threshold value TH, and the total value TS is equal to or higher than the threshold value TH. Determine if it exists. If this determination is affirmative, the process proceeds to step S22.
  • step S22 the generation unit 44 generates a packed object that summarizes the objects to be processed.
  • step S24 the control unit 46 controls to record the packed object generated in step S22 on the magnetic tape T. When step S24 ends, the object recording process ends. If the determination in step S20 is a negative determination, the object recording process ends.
  • Reference numeral t in FIG. 8 represents the timing at which the object recording process shown in FIG. 7 is executed for each time interval T1. Further, when distinguishing each timing t, a number is added at the end as in timings t1 to t3.
  • the determination in step S20 is an affirmative determination.
  • a packed object that summarizes the processing target object group is generated.
  • step S20 in FIG. 7 the determination in step S20 in FIG. 7 is affirmative. It becomes.
  • step S22 a packed object that summarizes the processing target object group is generated.
  • the packed object can be appropriately created.
  • the present invention is not limited to this.
  • the number N of objects in the object group to be processed may be compared with the threshold value TH.
  • the generation unit 44 when the number N is equal to or greater than the threshold value TH, the generation unit 44 generates a packed object that is a collection of objects to be processed.
  • the CPU 20 of the information processing apparatus 12 may derive the threshold value TH according to the total value of the sizes of the objects received from the external device per unit time.
  • the threshold value for example, the smaller the total value of the sizes of the objects received by the CPU 20 during the period of one predetermined time interval T1 immediately before the timing t for performing the process of comparing the total value TS and the threshold value TH, the threshold value.
  • Set TH to a small value.
  • FIG. 9 also illustrates the case where the size of one object is 5 GB, as in FIG. 8.
  • the CPU 20 may derive the threshold value TH based on the time-series data of the total value of the sizes of the objects received in the latest predetermined time interval T1. In this case, for example, the CPU 20 predicts the total value of the period of the next time interval T1 from the time series data. Specifically, for example, when the time series data of the latest three periods is 1.0 TB ⁇ 1.2 TB ⁇ 1.4 TB, the CPU 20 sets the total value of the periods of the next time interval T1 to 1.6 TB. Predict.
  • the CPU 20 predicts that the total value of the periods of the next time interval T1 is 1.2 TB. .. Then, the CPU 20 sets the threshold value TH to a smaller value as the predicted total value becomes smaller. For this prediction, for example, approximation methods such as linear approximation and non-linear approximation can be used.
  • the CPU 20 when the CPU 20 derives the threshold value TH, the CPU 20 has a threshold value according to the total value of the sizes of the objects received in the same past time zone as the time zone of the next time interval T1 which is the time zone for generating the packed object.
  • TH may be derived. Examples of past time zones in this case include, for example, the same time zone of the previous day or the same time zone one week ago.
  • the CPU 20 when deriving the threshold value TH, sets the threshold value TH according to the total value of the sizes of the objects received in the same plurality of time zones as the time zone of the next time interval T1 which is the time zone for generating the packed object. It may be derived. Examples of the past plurality of time zones in this case include the same time zone of the most recent plurality of days or the same time zone one week ago and two weeks ago.
  • the CPU 20 may derive the threshold value TH according to the number of received objects instead of the total value of the sizes of the received objects.
  • the process of generating the packed object and the process of recording the generated packed object on the magnetic tape T are executed at the same time interval, but the present invention is not limited to this.
  • the process of generating the packed object and the process of recording the generated packed object on the magnetic tape T may be executed at different time intervals. Specifically, the time interval of the process of recording the generated packed object on the magnetic tape T is made longer than the time interval of the process of generating the packed object, and after a plurality of packed objects are generated, the plurality of packed objects are generated.
  • An example is a mode in which an object is recorded on a magnetic tape T.
  • the hardware structure of the processing unit (processing unit) that executes various processes such as the receiving unit 40, the determination unit 42, the generating unit 44, and the control unit 46 is shown below.
  • Various processors can be used.
  • the CPU which is a general-purpose processor that executes software (program) and functions as various processing units
  • circuits after manufacturing FPGA (Field Programmable Gate Array) and the like are used.
  • Dedicated electricity which is a processor with a circuit configuration specially designed to execute specific processing such as programmable logic device (PLD), ASIC (Application Specific Integrated Circuit), which is a processor whose configuration can be changed. Circuits etc. are included.
  • One processing unit may be composed of one of these various processors, or a combination of two or more processors of the same type or different types (for example, a combination of a plurality of FPGAs or a combination of a CPU and an FPGA). It may be composed of a combination). Further, a plurality of processing units may be configured by one processor.
  • one processor is configured by a combination of one or more CPUs and software, as represented by a computer such as a client and a server.
  • the processor functions as a plurality of processing units.
  • SoC System on Chip
  • the various processing units are configured by using one or more of the above-mentioned various processors as a hardware-like structure.
  • an electric circuit in which circuit elements such as semiconductor elements are combined can be used.
  • the information processing program 30 is provided in a form recorded on a recording medium such as a CD-ROM (Compact Disc Read Only Memory), a DVD-ROM (Digital Versatile Disc Read Only Memory), and a USB (Universal Serial Bus) memory. May be good. Further, the information processing program 30 may be downloaded from an external device via a network.
  • a recording medium such as a CD-ROM (Compact Disc Read Only Memory), a DVD-ROM (Digital Versatile Disc Read Only Memory), and a USB (Universal Serial Bus) memory. May be good.
  • the information processing program 30 may be downloaded from an external device via a network.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

Un dispositif de traitement d'informations effectue périodiquement un traitement de comparaison, à une valeur seuil, d'un nombre ou d'une valeur totale de taille d'objets dans un ensemble d'objets à traiter, concernant lequel un traitement de groupage n'est pas exécuté, et dans le cas où le nombre ou la valeur totale n'est pas inférieur(e) à la valeur seuil, génère un objet assemblé dans lequel l'ensemble d'objets à traiter est groupé.
PCT/JP2021/017591 2020-09-01 2021-05-07 Dispositif de traitement d'informations, procédé de traitement d'informations et programme de traitement d'informations WO2022049831A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10111851A (ja) * 1996-10-04 1998-04-28 Nec Corp バッファ制御方法
US20140189269A1 (en) * 2012-12-28 2014-07-03 Futurewei Technologies, Inc. System and Method for Virtual Tape Library Over S3
JP2019008373A (ja) * 2017-06-20 2019-01-17 日本電気株式会社 仮想テープ管理装置、仮想テープ管理方法、及びプログラム
WO2020158126A1 (fr) * 2019-01-30 2020-08-06 ソニー株式会社 Dispositif de traitement d'informations, procédé de traitement d'informations, et programme

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10111851A (ja) * 1996-10-04 1998-04-28 Nec Corp バッファ制御方法
US20140189269A1 (en) * 2012-12-28 2014-07-03 Futurewei Technologies, Inc. System and Method for Virtual Tape Library Over S3
JP2019008373A (ja) * 2017-06-20 2019-01-17 日本電気株式会社 仮想テープ管理装置、仮想テープ管理方法、及びプログラム
WO2020158126A1 (fr) * 2019-01-30 2020-08-06 ソニー株式会社 Dispositif de traitement d'informations, procédé de traitement d'informations, et programme

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