WO2022168405A1 - Dispositif, procédé et programme de traitement d'information - Google Patents

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

Info

Publication number
WO2022168405A1
WO2022168405A1 PCT/JP2021/042854 JP2021042854W WO2022168405A1 WO 2022168405 A1 WO2022168405 A1 WO 2022168405A1 JP 2021042854 W JP2021042854 W JP 2021042854W WO 2022168405 A1 WO2022168405 A1 WO 2022168405A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
tape
migration
information processing
magnetic tape
Prior art date
Application number
PCT/JP2021/042854
Other languages
English (en)
Japanese (ja)
Inventor
豊 大石
理貴 近藤
優子 宇野
美咲 大塚
Original Assignee
富士フイルム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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 JP2022579351A priority Critical patent/JPWO2022168405A1/ja
Publication of WO2022168405A1 publication Critical patent/WO2022168405A1/fr

Links

Images

Classifications

    • 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

Definitions

  • the present disclosure relates to an information processing device, an information processing method, and an information processing program.
  • Japanese Patent Application Laid-Open No. 2012-221055 discloses a technique for determining whether or not data migration is possible based on the combination of the magnetic tape generation and the tape drive generation.
  • Japanese Patent Application Laid-Open No. 2011-209901 discloses a technique of using the latest generation tape drives among tape drives capable of reading and writing magnetic tapes when migrating magnetic tape data.
  • Japanese Patent Application Laid-Open No. 2003-015917 discloses a technique of calculating the priority of migration processing of data to be migrated based on the last update date, last reference date, and data size of the data, and performing migration processing in order of priority. is disclosed.
  • Data is migrated by recording the data recorded on the migration source magnetic tape onto the migration destination magnetic tape.
  • the migration source magnetic tape can be taken out from the tape library, so an empty slot can be secured in the tape library. Therefore, when migrating data recorded on a plurality of source magnetic tapes, for example, even if the processing time for the entire migration process does not change, the migration processing for some of the source magnetic tapes can end early. If possible, an empty slot can be secured in the tape library as early as possible.
  • JP-A-2012-221055, JP-A-2011-209901, and JP-A-2003-015917 perform data migration recorded on a plurality of migration source magnetic tapes in what order. No consideration has been given to whether
  • the present disclosure has been made in view of the above circumstances, and aims to provide an information processing device, an information processing method, and an information processing program capable of securing empty slots in a tape library at an early stage.
  • An information processing apparatus of the present disclosure is an information processing apparatus including at least one processor, and the processor is a combination of the generation of the magnetic tape standard of the data transfer source and the generation of the tape drive standard, and the magnetic tape of the transfer source. Based on the total size of the data recorded on the tape, whether or not the magnetic tape to which the data is migrated is subject to retrieval from the tape library after the data migration, or the redundancy of the data recorded on the magnetic tape of the migration source, A data migration order is derived for a plurality of migration source magnetic tapes stored in a tape library.
  • each tape drive can read data.
  • the order of data migration may be derived so that data is migrated first from magnetic tapes of generations that cannot be read by other tape drives.
  • the information processing apparatus of the present disclosure may derive the order of data migration so that the processor performs data migration first from a migration source magnetic tape with a smaller total size.
  • the processor derives the order of data migration so that the data is migrated first from the migration source magnetic tape to be taken out from the tape library after the data migration to the migration destination magnetic tape. You may
  • the processor may derive the order of data migration so that the data is migrated first from the migration source magnetic tape on which the data is multiplexed and recorded.
  • the processor when the processor performs data migration from a plurality of source magnetic tapes on which data is multiplexed and recorded to a plurality of destination magnetic tapes, Data is migrated to one of the magnetic tapes first, and data is migrated to the remaining magnetic tapes at the destination, starting with the magnetic tapes to which data migration has been completed.
  • the order of migration may be derived.
  • the tape drive that reads data from the migration source magnetic tape is the generation of the migration source magnetic tape standard. You may select tape drives of the same generation.
  • the information processing method of the present disclosure includes a combination of the generation of the magnetic tape standard of the data migration source and the generation of the tape drive standard, the total size of the data recorded on the magnetic tape of the migration source, and the data migration destination. of multiple source magnetic tapes stored in the tape library, based on whether or not each magnetic tape is subject to retrieval from the tape library after data migration, or based on the redundancy of the data recorded on the source magnetic tapes.
  • a processor included in the information processing apparatus executes processing for deriving the order of data migration.
  • the information processing program of the present disclosure includes a combination of the generation of the magnetic tape standard of the data migration source and the generation of the tape drive standard, the total size of the data recorded on the magnetic tape of the migration source, and the data migration destination. of multiple source magnetic tapes stored in the tape library, based on whether or not each magnetic tape is subject to retrieval from the tape library after data migration, or based on the redundancy of the data recorded on the source magnetic tapes. This is for causing a processor included in the information processing apparatus to execute processing for deriving the order of data migration.
  • FIG. 1 is a block diagram showing an example of the configuration of an information processing system; FIG. It is a block diagram which shows an example of the hardware constitutions of an information processing apparatus.
  • FIG. 4 is a diagram for explaining data migration; 1 is a block diagram showing an example of a functional configuration of an information processing device;
  • FIG. 10 is a diagram for explaining an example of the order of data migration according to a comparative example;
  • FIG. 4 is a diagram for explaining an example of the order of data migration according to the first embodiment;
  • FIG. 6 is a flowchart illustrating an example of data migration processing;
  • FIG. 10 is a diagram for explaining an example of the order of data migration according to a comparative example;
  • FIG. 11 is a diagram for explaining an example of the order of data migration according to the second embodiment;
  • FIG. 10 is a diagram for explaining an example of the order of data migration according to a comparative example
  • FIG. 13 is a diagram for explaining an example of the order of data migration according to the third embodiment
  • FIG. FIG. 4 is a diagram for explaining data migration of a plurality of magnetic tapes on which data is multiplexed and recorded
  • FIG. 10 is a diagram for explaining an example of the order of data migration according to a comparative example
  • FIG. 12 is a diagram for explaining an example of the order of data migration according to the fourth embodiment
  • FIG. FIG. 12 is a diagram for explaining an example of the order of data migration according to the fourth embodiment
  • the information processing system 10 includes an information processing device 12 and a tape library 14 .
  • the information processing device 12 include a server computer and the like.
  • the tape library 14 comprises a plurality of slots (not shown) and a plurality of tape drives 18, each slot storing 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 data to or reads data from the magnetic tape T under the control of the information processing device 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 the predetermined tape drive 18 .
  • the magnetic tape T is unloaded from the tape drive 18 to the slot in which it was originally stored.
  • 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 section 22 .
  • the information processing device 12 also includes a display 23 such as a liquid crystal display, an input device 24 such as a keyboard and a mouse, a network I/F (InterFace) 25 connected to a network, and an external I/F to which each tape drive 18 is connected.
  • a display 23 such as a liquid crystal display
  • an input device 24 such as a keyboard and a mouse
  • a network I/F (InterFace) 25 connected to a network
  • an external I/F to which each tape drive 18 is connected.
  • Including F26 CPU 20 , memory 21 , storage unit 22 , display 23 , input device 24 , network I/F 25 and external I/F 26 are connected to bus 27 .
  • the storage unit 22 is implemented by a HDD (Hard Disk Drive), SSD (Solid State Drive), flash memory, or the like.
  • An information processing program 30 is stored in the storage unit 22 as a storage medium.
  • the CPU 20 reads out the information processing program 30 from the storage unit 22 , expands it in the memory 21 , and executes the expanded information processing program 30 .
  • FIG. 3 As an example, in the information processing system 10 according to the present embodiment, data is migrated from a plurality of source magnetic tapes T to a plurality of destination magnetic tapes T.
  • FIG. 1 when distinguishing between the source magnetic tape T and the destination magnetic tape T, the source magnetic tape T will be referred to as “magnetic tape T1" and the destination magnetic tape T will be referred to as “magnetic tape T2". It says. Both the magnetic tape T1 and the magnetic tape T2 are stored in slots of the tape library 14.
  • FIG. Data to be transferred is recorded on the magnetic tape T1.
  • the magnetic tape T2 is a new magnetic tape T on which no data is recorded.
  • the purpose of data migration is, for example, to increase the free space of magnetic tape T1 where the total size of logically deleted data has reached a certain value or more. Further, as a purpose of data migration, for example, data recorded on the old-generation magnetic tape T1 is migrated to the new-generation magnetic tape T2, and data recorded on the magnetic tape T1 whose error rate has increased due to deterioration over time. Another example is to migrate the data that has been recorded to a new magnetic tape T2.
  • each magnetic tape T1 is associated in advance with the destination magnetic tape T2 based on the total size of data recorded on the magnetic tape T1 and the size of data recordable on the magnetic tape T2.
  • the information processing apparatus 12 has a function of deriving the order of data migration of a plurality of magnetic tapes T1 in order to secure empty slots at an early stage.
  • the information processing device 12 includes a derivation section 40 and a control section 42 .
  • the CPU 20 functions as a derivation unit 40 and a control unit 42 by executing the information processing program 30 .
  • the deriving unit 40 migrates data from a plurality of source magnetic tapes T1 stored in the tape library 14 based on the combination of the standard generation of the data migration source magnetic tapes T1 and the standard generation of the tape drive 18. derive the order of Specifically, when the magnetic tape T1 is loaded into each of a plurality of tape drives 18 of different generations and data migration is performed, the derivation unit 40 derives the order of data migration as follows. In this case, in each tape drive 18, the deriving unit 40 performs data migration first from the magnetic tape T1 of the generation that can be read by the tape drive 18 and cannot be read by the other tape drives 18. , to derive the order of data migration.
  • FIGS. 5 and 6 A specific example of the data migration order will be described with reference to FIGS.
  • the generation of the standard of the first tape drive 18 is the 7th generation
  • the generation of the standard of the second tape drive 18 is the 8th generation.
  • the seventh generation tape drive 18 will be referred to as the “tape drive 18A”
  • the eighth generation tape drive 18 will be referred to as the “tape drive 18B”.
  • the tape drive 18 can read the magnetic tape T of the same generation as its own generation and the magnetic tape T of the previous generation. That is, the tape drive 18A is capable of reading sixth and seventh generation magnetic tapes T, and the tape drive 18B is capable of reading seventh and eighth generation magnetic tapes.
  • the number of magnetic tapes T1 is 6 in total, including 2 magnetic tapes T1 conforming to the 6th generation standard, 2 magnetic tapes T1 conforming to the 7th generation standard, and 2 magnetic tapes T1 conforming to the 8th generation standard. shall be a book. Also, in FIGS. 5 and 6, the magnetic tapes T1 listed under the tape drive 18 are read by that tape drive 18 respectively. 5 and 6, the magnetic tape T1 is read later in time as it goes down, that is, read in order from top to bottom. For the sake of simplicity, it is assumed here that the time taken to read data from each magnetic tape T1 is the same.
  • the tape drive 18A first transfers two seventh generation magnetic tapes. Read data from T1. Also, in this case, the tape drive 18B first reads data from the two eighth generation magnetic tapes T1. When each of the tape drives 18A and 18B completes reading data from the two magnetic tapes T1, the remaining two magnetic tapes T1 are the sixth generation magnetic tapes T1. In this case, since the tape drive 18B cannot read the sixth generation magnetic tape T1, the tape drive 18A reads data from two sixth generation magnetic tapes T1.
  • the tape drive 18A first uses two sixth-generation magnetic strips that are readable by the tape drive 18A and unreadable by the tape drive 18B. Read data from tape T1. Also, the tape drive 18B first reads data from two eighth generation magnetic tapes T1 that are readable by the tape drive 18B but not readable by the tape drive 18A. When each of the tape drives 18A and 18B completes reading data from the two magnetic tapes T1, the remaining two magnetic tapes T1 are the seventh generation magnetic tapes T1. In this case, since both the tape drives 18A and 18B can read the seventh generation magnetic tape T1, each of the tape drives 18A and 18B reads one seventh generation magnetic tape T1. That is, in the example of FIG. 6, data migration is completed earlier than in the example of FIG. 5 by the amount of time required to read one magnetic tape T1. Therefore, an empty slot can be secured in the tape library 14 at an early stage.
  • the control unit 42 performs control to migrate the data recorded on the magnetic tape T1 to the magnetic tape T2 according to the order derived by the deriving unit 40. Specifically, the control unit 42 controls the tape drive 18 and reads the data recorded on the magnetic tape T1 according to the order derived by the deriving unit 40 . The controller 42 then controls the tape drive 18 to record the data read from the magnetic tape T1 on the magnetic tape T2. At this time, the control unit 42 performs control to record the data on the magnetic tape T2 while reading the data recorded on the magnetic tape T1. Note that the control unit 42 stores the data recorded on the magnetic tape T1 in the storage unit 22 while reading the data recorded on the magnetic tape T1. You may perform control to record to.
  • control unit 42 controls the moving mechanism such as the robot arm of the tape library 14 to move the magnetic tape T1 whose data has been read to the ejection port of the tape library 14 during the above data migration. The operator takes out the magnetic tape T1 from the take-out opening.
  • the data migration process shown in FIG. 7 is executed by the CPU 20 executing the information processing program 30 .
  • the data migration process shown in FIG. 7 is executed, for example, when an execution instruction is input by the user. At this time, for example, the user inputs the identification information of the magnetic tape T1 to be transferred.
  • step S10 of FIG. 7 the deriving unit 40 determines the data stored in the tape library 14 based on the combination of the standard generation of the magnetic tape T1 from which the data is transferred and the standard generation of the tape drive 18, as described above. Then, the data transfer order of the plurality of transfer source magnetic tapes T1 is derived.
  • step S12 the control unit 42 performs control to migrate the data recorded on the magnetic tape T1 to the magnetic tape T2 according to the order derived at step S10, as described above. At this time, the control unit 42 performs control to move the magnetic tape T1 whose data has been read to the ejection port of the tape library 14, as described above. When the process of step S12 ends, the data migration process ends.
  • an empty slot can be secured in the tape library 14 at an early stage.
  • the information processing device 12 includes a derivation unit 40A and a control unit 42A.
  • the CPU 20 functions as a derivation unit 40A and a control unit 42A.
  • the derivation unit 40A derives the order of data migration of the plurality of source magnetic tapes T1 stored in the tape library 14 based on the total size TS of the data recorded on the source magnetic tapes T1. Specifically, the derivation unit 40A derives the order of data migration so that the data migration is performed first from the source magnetic tape T1 having the smaller total size TS.
  • FIGS. 8 and 9 A specific example of the data migration order will be described with reference to FIGS.
  • the numbers in parentheses in FIGS. 8 and 9 represent the time required to read the data recorded on the magnetic tape T1 when transferring data from each magnetic tape T1. This number is provided so that the time required to read the data recorded on each magnetic tape T1 can be relatively compared. Also, this number is proportional to the total size TS of the data recorded on each magnetic tape T1. That is, the total size TS increases in order of "Tape2", “Tape4", “Tape3", and “Tape1". Also, here, it is assumed that one tape drive 18 is used for reading data from four magnetic tapes T1.
  • data migration is performed first from the magnetic tape T1 having the smaller total size TS.
  • control unit 42A performs control to transfer the data recorded on the magnetic tape T1 to the magnetic tape T2 according to the order derived by the derivation unit 40A.
  • step S10 of FIG. 7 the derivation unit 40A extracts data from a plurality of source magnetic tapes stored in the tape library 14 based on the total size TS of the data recorded on the source magnetic tape T1, as described above. Derive the order of data migration for T1.
  • step S12 the control unit 42A performs control to migrate the data recorded on the magnetic tape T1 to the magnetic tape T2 according to the order derived at step S10, as described above. At this time, the control unit 42A performs control to move the magnetic tape T1 whose data has been read to the ejection port of the tape library 14, as described above. When the process of step S12 ends, the data migration process ends.
  • the information processing device 12 includes a derivation unit 40B and a control unit 42B.
  • the CPU 20 functions as a derivation unit 40B and a control unit 42B.
  • the derivation unit 40B performs data migration of a plurality of source magnetic tapes T1 stored in the tape library 14 based on whether the data migration destination magnetic tape T1 is to be retrieved from the tape library 14 after data migration. derive the order of Specifically, the deriving unit 40B derives the order of data migration so that the data is migrated first from the source magnetic tape T1 to be taken out from the tape library 14 after the data migration to the destination magnetic tape T2. do.
  • FIGS. 10 and 11 there are four source magnetic tapes T1, "Tape1" to “Tape4", and four target magnetic tapes T2, "Tape11” to “Tape14". It is assumed that there is a book.
  • the four magnetic tapes T1 and the four magnetic tapes T2 correspond one-to-one, and one tape drive 18 is used for reading data from the magnetic tapes T1 and writing data to the magnetic tapes T2. shall be used.
  • 10 and 11 indicate that the magnetic tape T2 marked "possible" is to be retrieved from the tape library 14 after the data migration.
  • the magnetic tapes T2 to be taken out from the tape library 14 after the data migration include, for example, some magnetic tapes T2 out of a plurality of magnetic tapes T2 on which data is multiplexed and recorded. This is because if at least one magnetic tape T2 on which the same data is recorded is stored in the tape library 14, the data can be accessed.
  • the magnetic tape T2 to be taken out from the tape library 14 after the data migration is, for example, a magnetic tape T2 with a relatively low access frequency intended for long-term storage of data.
  • data is migrated from the source magnetic tape T1 to be retrieved from the tape library 14 after the data is migrated from the destination magnetic tape T2.
  • “Tape13” can be taken out from the tape library 14 . That is, in this case, four magnetic tapes T can be taken out from the tape library 14 at time t. Therefore, although the processing time for the entire data migration process does not change, more empty slots can be secured during the data migration process.
  • control unit 42B performs control to transfer the data recorded on the magnetic tape T1 to the magnetic tape T2 according to the order derived by the derivation unit 40B.
  • step S10 of FIG. 7 the derivation unit 40B determines whether or not the magnetic tape T1, which is the data transfer destination, is to be taken out from the tape library 14 after the data transfer, as described above. Then, the data transfer order of the plurality of transfer source magnetic tapes T1 is derived.
  • step S12 the control unit 42B performs control to transfer the data recorded on the magnetic tape T1 to the magnetic tape T2 according to the order derived at step S10, as described above. At this time, the control unit 42B performs control to move the magnetic tape T1 whose data has been read to the ejection port of the tape library 14, as described above. Further, at this time, the control unit 42B performs control to move the magnetic tape T2 to be taken out from the tape library 14 to the takeout port of the tape library 14 among the magnetic tapes T2 on which data writing has been completed.
  • the data migration process ends.
  • a plurality of magnetic tapes T1 on which data is multiplexed and recorded exist in the migration source magnetic tape T1.
  • the multiplicity is 3 will be described below. Note that the multiplicity is not limited to 3, and may be 2 or 4 or more.
  • the three magnetic tapes T1 are magnetic tapes T1 for primary data, secondary data, and spare data, respectively.
  • the information processing device 12 includes a derivation unit 40C and a control unit 42C.
  • the CPU 20 functions as a derivation unit 40C and a control unit 42C.
  • the derivation unit 40C derives the order of data migration of the plurality of source magnetic tapes T1 stored in the tape library 14 based on the redundancy of the data recorded on the source magnetic tapes T1. Specifically, the derivation unit 40C derives the order of data migration so that the data is migrated first from the source magnetic tape T1 on which the data is multiplexed and recorded. Also, at this time, the derivation unit 40C performs data migration first on one magnetic tape T2 out of the plurality of magnetic tapes T2 on which data is multiplexed and recorded, and on the remaining magnetic tapes T2, The order of data migration is derived so that data migration is performed last from the magnetic tape T2 on which data migration has been completed. If there are magnetic tapes T1 with different degrees of multiplicity, the derivation unit 40C may derive the order of data migration so that data is migrated from the magnetic tape T1 with the higher multiplicity first.
  • FIG. 13 to 15 A specific example of the data migration order will be described with reference to FIGS. 13 to 15.
  • FIGS. 13 to 15 there are eight magnetic tapes T1 and T2, two of which are magnetic tapes T1 and T2 on which data is recorded without being multiplexed.
  • T1 and T2 two of which are magnetic tapes T1 and T2 on which data is recorded without being multiplexed.
  • six of the eight tapes are two sets of three magnetic tapes T1 and T2 on which data is multiplexed and recorded.
  • the order of data migration is randomly determined and the order shown in FIG. 13 is obtained.
  • reading of data from the two magnetic tapes T1 is completed at time t.
  • One of the two magnetic tapes T1 is one of the three magnetic tapes T1 on which data is multiplexed and recorded. That is, in this case, four magnetic tapes T1 can be taken out from the tape library 14 at time t.
  • the magnetic tape T that can be taken out from the tape library 14 at time t is indicated by a dashed line.
  • data migration is performed first from the magnetic tape T1 on which data is multiplexed and recorded.
  • reading of data from the two magnetic tapes T1 is completed at time t.
  • Both of these two magnetic tapes T1 are one of three magnetic tapes T1 on which data is multiplexed and recorded. That is, in this case, six magnetic tapes T1 can be taken out from the tape library 14 at time t. Therefore, although the processing time for the entire data migration process does not change, more empty slots can be secured during the data migration process.
  • the magnetic tapes T2 other than the one magnetic tape T2 for which the data migration has been completed first are , data migration is performed last from the magnetic tape T2 on which data migration has been completed.
  • the order of data migration shown in FIG. 15 is performed after the order of data migration shown in FIG.
  • control unit 42C performs control to transfer the data recorded on the magnetic tape T1 to the magnetic tape T2 according to the order derived by the derivation unit 40C.
  • step S10 of FIG. 7 the derivation unit 40C extracts the plurality of source magnetic tapes T1 stored in the tape library 14 based on the redundancy of the data recorded on the source magnetic tapes T1, as described above. Derive the order of data migration for
  • step S12 the control unit 42C performs control to migrate the data recorded on the magnetic tape T1 to the magnetic tape T2 according to the order derived at step S10, as described above. At this time, as described above, the control unit 42C performs control to move the magnetic tape T1 from which data has been read and the magnetic tape T1 on which the same data as the magnetic tape T1 is recorded to the ejection port of the tape library 14. .
  • the data migration process ends.
  • the CPU 20 selects the generation of the migration source magnetic tape T1 as the tape drive 18 that reads data from the migration source magnetic tape T1.
  • a tape drive 18 of the same generation as the tape drive 18 may be selected.
  • the standard generation of the migration source magnetic tape T1 is the 7th generation
  • the standard generation of the migration destination magnetic tape T2 is the 8th generation.
  • the tape library 14 stores the seventh generation standard first tape drive 18 capable of reading the sixth and seventh generation magnetic tapes T1, and the seventh and eighth generation magnetic tapes T1. 8th generation standard second tape drive 18 capable of reading. In this case, both the first and second tape drives 18 can read data from the seventh generation magnetic tape T1.
  • the second tape drive 18 of the first and second tape drives 18 can write data to the eighth generation magnetic tape T2.
  • the second tape drive 18 is used to read data from the magnetic tape T1
  • the number of tape drives 18 capable of writing data to the eighth generation magnetic tape T2 will decrease. Therefore, for the tape drive 18 that reads data from the magnetic tape T1, it is preferable to select a tape drive 18 of the same generation as the standard generation of the magnetic tape T1.
  • the various processors include, in addition to the CPU, which is a general-purpose processor that executes software (programs) and functions as various processing units, circuits such as FPGAs (Field Programmable Gate Arrays), etc.
  • Programmable Logic Device PLD which is a processor whose configuration can be changed, ASIC (Application Specific Integrated Circuit) etc. 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 multiple FPGAs, a combination of a CPU and an FPGA). combination). Also, a plurality of processing units may be configured by one processor.
  • a single processor is configured by combining one or more CPUs and software.
  • a processor functions as multiple processing units.
  • SoC System on Chip
  • the various processing units are configured using one or more of the above various processors as a hardware structure.
  • an electric circuit combining circuit elements such as semiconductor elements can be used.
  • the information processing program 30 has been pre-stored (installed) in the storage unit 22, but the present invention is not limited to this.
  • 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. good too. Further, the information processing program 30 may be downloaded from an external device via a network.

Landscapes

  • 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 For Digital Recording And Reproducing (AREA)

Abstract

L'invention concerne un dispositif de traitement d'information qui obtient un ordre de transfert de données pour une pluralité de bandes magnétiques de source de transfert stockées dans une bibliothèque de bandes, en fonction: d'une combinaison de la génération standard de la bande magnétique qui est la source de transfert de données et d'une génération standard d'un lecteur de bande; de la taille totale des données enregistrées sur la bande magnétique source de transfert; de la détermination si une bande magnétique qui est la destination de transfert de données va être soumise à un retrait de la bibliothèque de bandes après transmission de données; ou de la redondance des données enregistrées sur la bande magnétique de source de transfert.
PCT/JP2021/042854 2021-02-05 2021-11-22 Dispositif, procédé et programme de traitement d'information WO2022168405A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2022579351A JPWO2022168405A1 (fr) 2021-02-05 2021-11-22

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-017457 2021-02-05
JP2021017457 2021-02-05

Publications (1)

Publication Number Publication Date
WO2022168405A1 true WO2022168405A1 (fr) 2022-08-11

Family

ID=82741093

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/042854 WO2022168405A1 (fr) 2021-02-05 2021-11-22 Dispositif, procédé et programme de traitement d'information

Country Status (2)

Country Link
JP (1) JPWO2022168405A1 (fr)
WO (1) WO2022168405A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002007364A (ja) * 2000-06-22 2002-01-11 Fujitsu Ltd 並列計算機システムのジョブスケジューリングを行うスケジューリング装置
JP2010218069A (ja) * 2009-03-16 2010-09-30 Fujitsu Ltd ストレージ管理装置、ストレージシステム、ストレージ管理方法
JP2018010545A (ja) * 2016-07-15 2018-01-18 富士通株式会社 ストレージ装置、制御装置、及び制御プログラム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002007364A (ja) * 2000-06-22 2002-01-11 Fujitsu Ltd 並列計算機システムのジョブスケジューリングを行うスケジューリング装置
JP2010218069A (ja) * 2009-03-16 2010-09-30 Fujitsu Ltd ストレージ管理装置、ストレージシステム、ストレージ管理方法
JP2018010545A (ja) * 2016-07-15 2018-01-18 富士通株式会社 ストレージ装置、制御装置、及び制御プログラム

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"System Audit Q&A110", 15 July 1998, JAPAN INSTITUTE FOR PROMOTION OF DIGITAL ECONOMY AND COMMUNITY, JP, ISBN: 4-89078-011-4, article (KAWABE, YOSHIKAZU ET AL. : "2. Points for System Auditing", pages: 228 - 229, XP009538920 *

Also Published As

Publication number Publication date
JPWO2022168405A1 (fr) 2022-08-11

Similar Documents

Publication Publication Date Title
WO2021171683A1 (fr) Dispositif de traitement d'informations, procédé de traitement d'informations et programme de traitement d'informations
WO2022168405A1 (fr) Dispositif, procédé et programme de traitement d'information
EP3920184A1 (fr) Dispositif d'enregistrement, procédé d'enregistrement, programme d'enregistrement, et bande magnétique
US20230065229A1 (en) Information processing apparatus, information processing method, and information processing program
US20230064391A1 (en) Information processing apparatus, information processing method, and information processing program
WO2021186774A1 (fr) Dispositif de traitement d'informations, procédé de traitement d'informations et programme de traitement d'informations
WO2022172549A1 (fr) Dispositif de traitement d'informations, procédé de traitement d'informations et programme de traitement d'informations
WO2022176344A1 (fr) Dispositif, procédé et programme de traitement d'informations
WO2021171816A1 (fr) Dispositif, procédé et programme de traitement d'informations
US20230047128A1 (en) Information processing apparatus, information processing method, and information processing program
EP4141639A1 (fr) Appareil, procédé et programme de traitement d'informations
EP4134803A1 (fr) Appareil, procédé et programme de traitement d'informations
WO2022044434A1 (fr) Dispositif, procédé et programme de traitement d'informations
WO2021177246A1 (fr) Dispositif de traitement d'informations, procédé de traitement d'informations, et programme de traitement d'informations
US20240094935A1 (en) Information processing apparatus, information processing method, and information processing program
WO2021171815A1 (fr) Dispositif, procédé et programme de traitement d'informations
WO2022172548A1 (fr) Dispositif de traitement d'informations, procédé de traitement d'informations, et programme de traitement d'informations
WO2022054401A1 (fr) Dispositif, procédé et programme de traitement d'informations
WO2022044433A1 (fr) Dispositif de traitement d'informations, procédé de traitement d'informations, et programme de traitement d'informations
WO2022163078A1 (fr) Dispositif de traitement d'informations, procédé de traitement d'informations, et programme de traitement d'informations
WO2022172550A1 (fr) Dispositif de traitement d'informations, procédé de traitement d'informations, et programme de traitement d'informations
WO2021181859A1 (fr) Dispositif, procédé et programme de transfert
US20230051963A1 (en) Information processing apparatus, information processing method, and information processing program
EP4220418A1 (fr) Appareil, procédé et programme de traitement d'informations
WO2022176345A1 (fr) Dispositif de traitement d'informations, procédé de traitement d'informations et programme de traitement d'informations

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21924791

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022579351

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21924791

Country of ref document: EP

Kind code of ref document: A1