WO2022038874A1 - 情報処理装置、情報処理方法、情報処理プログラム、及び磁気テープカートリッジ - Google Patents

情報処理装置、情報処理方法、情報処理プログラム、及び磁気テープカートリッジ Download PDF

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Publication number
WO2022038874A1
WO2022038874A1 PCT/JP2021/022332 JP2021022332W WO2022038874A1 WO 2022038874 A1 WO2022038874 A1 WO 2022038874A1 JP 2021022332 W JP2021022332 W JP 2021022332W WO 2022038874 A1 WO2022038874 A1 WO 2022038874A1
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WO
WIPO (PCT)
Prior art keywords
pool
magnetic tape
identification information
storage pool
storage
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2021/022332
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English (en)
French (fr)
Japanese (ja)
Inventor
豊 大石
理貴 近藤
優子 宇野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Corp
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Fujifilm Corp
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 Fujifilm Corp filed Critical Fujifilm Corp
Priority to EP21858025.6A priority Critical patent/EP4202625A4/en
Priority to CN202180050175.1A priority patent/CN115867896A/zh
Priority to JP2022543293A priority patent/JPWO2022038874A1/ja
Publication of WO2022038874A1 publication Critical patent/WO2022038874A1/ja
Priority to US18/165,284 priority patent/US20230176756A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/002—Programmed access in sequence to a plurality of record carriers or indexed parts, e.g. tracks, thereof, e.g. for editing
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0629—Configuration or reconfiguration of storage systems
    • G06F3/0631—Configuration or reconfiguration of storage systems by allocating resources to storage systems
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/13—File access structures, e.g. distributed indices
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0604—Improving or facilitating administration, e.g. storage management
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0662—Virtualisation aspects
    • G06F3/0665—Virtualisation aspects at area level, e.g. provisioning of virtual or logical volumes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/0671—In-line storage system
    • G06F3/0683—Plurality of storage devices
    • G06F3/0686—Libraries, e.g. tape libraries, jukebox
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/107—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating tapes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/2053—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant
    • G06F11/2094—Redundant storage or storage space
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0646—Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
    • G06F3/065—Replication mechanisms
    • 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1201—Formatting, e.g. arrangement of data block or words on the record carriers on tapes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00813—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes

Definitions

  • This disclosure relates to an information processing device, an information processing method, an information processing program, and a magnetic tape cartridge.
  • identification information such as a pool number or a pool ID (IDentifier) is added to the storage pool. Further, in the techniques described in JP-A-2008-250667 and JP-A-2010-108341, different identification information is given to each storage pool. Therefore, in the techniques described in JP-A-2008-250667 and JP-A-2010-108341, it is possible to specify what kind of group of a plurality of magnetic tapes each storage pool is based on only the storage pool identification information. It was difficult to do.
  • the storage pool when accessing a specific storage pool, is specified by the combination of the pool group identification information and the storage pool identification information. Can be done. In this case, the storage pool is given unique identification information within the pool group, but if the pool groups are different, the same identification information may be given.
  • This disclosure has been made in view of the above circumstances, and is an information processing device and an information processing method capable of easily identifying what kind of group of multiple magnetic tapes is from the identification information of the storage pool. , Information processing programs, and magnetic tape cartridges.
  • the information processing apparatus of the present disclosure is an information processing apparatus including at least one processor, wherein the processor is a storage pool containing a plurality of magnetic tapes, and the same data is multiplexed and recorded with a plurality of multiplexes.
  • the identification information of a plurality of storage pools is different for each storage pool in a pool group including a plurality of storage pools, and depending on the number of multiple storage pools of the storage pool among different pool groups. Control is performed to record the identification information of the storage pool having the same information on at least one of the management area of the magnetic tape belonging to the storage pool and the recording medium other than the magnetic tape included in the magnetic tape cartridge including the magnetic tape. ..
  • the identification information may be different information between different users, different buckets, or different regions in the system.
  • all the magnetic tapes included in each of the plurality of storage pools belonging to one pool group are stored in the same logical library among the plurality of logical libraries in which the tape library is logically divided. May be done.
  • the identification information of the corresponding pool group may be the same information in a plurality of availability zones.
  • the information processing method of the present disclosure is a storage pool containing a plurality of magnetic tapes, and a plurality of storages are used for identification information of a plurality of storage pools in which the same data is multiplexed and recorded with a plurality of multiplexes.
  • the storage pool identification information that is different for each storage pool and is the same information among different pool groups depending on the number of multiple storage pools is used.
  • the processor provided in the information processing apparatus executes a process of controlling recording on at least one of a recording medium other than the magnetic tape included in the management area of the magnetic tape belonging to the storage pool and the magnetic tape cartridge including the magnetic tape. ..
  • the information processing program of the present disclosure is a storage pool containing a plurality of magnetic tapes, and a plurality of storages are used for identification information of a plurality of storage pools in which the same data is multiplexed and recorded with a plurality of multiplexes.
  • the storage pool identification information that is different for each storage pool and is the same information among different pool groups depending on the number of multiple storage pools is used.
  • the magnetic tape cartridge of the present disclosure is a magnetic tape cartridge including a magnetic tape and a recording medium other than the magnetic tape, and is a storage pool containing a plurality of magnetic tapes, in which the same data is multiplexed with a degree of multiplexing of 1 or more.
  • the identification information of multiple storage pools that are stored and recorded they differ for each storage pool within a pool group that includes multiple storage pools, and between different pool groups, the storage pool is the multiple storage pool.
  • the identification information that is the same information depending on the presence is that the identification information of the storage pool to which the magnetic tape cartridge belongs is recorded in at least one of the management area of the magnetic tape and the recording medium.
  • the recording / playback system 10 includes an information processing device 12 and a tape library 14.
  • 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 a magnetic tape cartridge 16 is stored in each slot.
  • Each tape drive 18 is connected to the information processing device 12.
  • An example of the magnetic tape cartridge 16 is an LTO (Linear Tape-Open) tape cartridge.
  • the tape library 14 is divided into a logical library 15 which is a plurality of logical tape libraries.
  • a logical library 15 which is a plurality of logical tape libraries.
  • an alphabet is added to the end of the code as in the logical library 15A and the logical library 15B.
  • Each logic library 15 includes a plurality of slots and a plurality of tape drives 18.
  • the case where the number of slots and the number of tape drives 18 included in each logic library 15 are the same will be described, but they may be different.
  • the magnetic tape cartridge 16 includes a magnetic tape T on which information is recorded by magnetism and an RFID (Radio Frequency IDentifier) tag 17 capable of recording and reading information in a non-contact manner by wireless communication or the like. Be prepared.
  • the RFID tag 17 is an example of a recording medium other than the magnetic tape T included in the magnetic tape cartridge 16.
  • the magnetic tape cartridge 16 is given unique identification information in the system, and the identification information is recorded on the RFID tag 17.
  • the tape drive 18 includes a control device 40, a read / write device 42, and a magnetic head H.
  • the magnetic tape cartridge 16 is stored in the tape drive 18. Further, when data is written or read to the RFID tag 17 of the magnetic tape cartridge 16, the magnetic tape cartridge 16 is also stored in the tape drive 18.
  • the control device 40 includes a processor such as a PLD (Programmable Logic Device), a memory as a temporary storage area, a non-volatile storage unit, and the like.
  • the control device 40 transmits / receives data to / from the information processing device 12, controls the read / write device 42 and the magnetic head H, and the like.
  • the read / write device 42 reads the information recorded on the RFID tag 17 in a non-contact manner under the control of the control device 40, and outputs the read information to the control device 40. Further, the read / write device 42 records information on the RFID tag 17 in a non-contact manner under the control of the control device 40.
  • An example of the read / write device 42 is an RFID reader / writer.
  • the magnetic head H includes a recording / reproducing element that writes and reads data on the magnetic tape T.
  • the information processing apparatus 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 CPU 20 controls the control device 40 of the tape drive 18 via the external I / F 26.
  • 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.
  • FIG. 5 illustrates a case where the number of magnetic tape cartridges 16 included in one storage pool is two, but the number of magnetic tape cartridges 16 included in one storage pool is not limited to two. ..
  • one pool group is composed of a plurality of storage pools.
  • the same data is recorded in two storage pools included in the same pool group, multiplexed with a degree of multiplexing of "2". That is, the first multiplex storage pool included in the pool group is a storage pool in which positive data is recorded, and the second multiplex storage pool is a storage pool in which secondary data is recorded.
  • each storage pool belongs to one pool group.
  • a pool group is assigned to the logical volume of the information processing apparatus 12, and the logical volume is provided to the user of the recording / playback system 10. Therefore, when the user terminal transmits the data to be written to the information processing device 12, the information processing device 12 multiplexes and records the data in two storage pools included in the pool group corresponding to the logical volume of the writing destination. Control to do.
  • the multiplicity when data is recorded in the pool group is not limited to 2, and may be 1 or 3 or more.
  • the storage pool included in each pool group is one of the storage pools for positive data.
  • the storage pools included in each pool group are three, a storage pool for primary data, a storage pool for secondary data, and a spare storage pool.
  • the information processing apparatus 12 includes an acquisition unit 50 and a control unit 52.
  • the CPU 20 executes the information processing program 30, it functions as an acquisition unit 50 and a control unit 52.
  • the acquisition unit 50 acquires the storage pool identification information and the pool group identification information input by the administrator of the recording / playback system 10.
  • the acquisition unit 50 may acquire the storage pool identification information and the pool group identification information from the storage pool and pool group setting information stored in the storage unit 22.
  • the storage pool identification information and the pool group identification information according to the present embodiment are assigned according to the following rules.
  • the identification information of the pool group is unique in the system.
  • the storage pool identification information differs for each storage pool within the pool group.
  • the identification information of the storage pool is the same among different pool groups depending on the number of multiple storage pools of the storage pool.
  • the number of multiplexes here is, for example, that the storage pool in which the positive data is recorded is the first multiplex storage pool, and the storage pool in which the secondary data is recorded is the second multiplex storage pool. Means.
  • the storage pool identification information is different among different users in the system.
  • the storage pool identification information and the pool group identification information may be generated by the information processing apparatus 12 according to the above rule.
  • FIG. 7 shows an example of the identification information of the storage pool and the identification information of the pool group allocated according to the above rules.
  • four magnetic tape cartridges 16 are stored in the slots of the logic libraries 15A to 15D, respectively.
  • two of the four magnetic tape cartridges 16 stored in the slots of the logical libraries 15A to 15D belong to the storage pool for positive data, and the remaining two belong to the storage pool for secondary data.
  • the storage pool for the primary data and the storage pool for the secondary data of each of the logical libraries 15A to 15D belong to one pool group.
  • the logical libraries 15A and 15B are the logical libraries assigned for the user A
  • the logical libraries 15C and 15D are the logical libraries assigned for the user B different from the user A.
  • the identification information of each pool group is unique in the system such as "PG1A”, “PG1B”, “PG2A”, and "PG2B”.
  • the identification information of the storage pool in the pool group “PG1A” is different for each storage pool like “Pool101” and “Pool102”.
  • the identification information of the storage pool is different for each storage pool, such as “Pool101” and “Pool102”.
  • the identification information of the storage pool is different for each storage pool, such as "Pool201” and “Pool202”.
  • the identification information of the storage pool is different for each storage pool, such as "Pool201” and "Pool202”.
  • the identification information of the storage pool in which the positive data is recorded is the same "Pool101”. Further, in the pool group "PG1A” and the pool group “PG1B", the identification information of the storage pool in which the secondary data is recorded, that is, the second multiplex storage pool is the same "Pool102”.
  • the identification information of the storage pool in which the positive data is recorded is the same "Pool201”.
  • the identification information of the storage pool in which the secondary data is recorded is the same "Pool202”.
  • the storage pool identification information "Pool 101" and “Pool 102" for user A and the storage pool identification information "Pool 201" and “Pool 202" for user B are different.
  • all the magnetic tape cartridges 16 included in each of the plurality of storage pools belonging to one pool group are stored in the same logic library 15 among the plurality of logic libraries 15. In other words, one pool group does not span multiple logical libraries 15.
  • the control unit 52 records the storage pool identification information and the pool group identification information acquired by the acquisition unit 50 on the RFID tag 17 of the magnetic tape cartridge 16 belonging to the storage pool of the pool group indicated by the respective identification information. I do.
  • the control unit 52 may control to record the identification information of the storage pool and the identification information of the pool group in the management area for recording the management information of the magnetic tape T instead of the RFID tag 17. Further, the control unit 52 may control to record the identification information of the storage pool and the identification information of the pool group in both the management area for recording the management information of the RFID tag 17 and the magnetic tape T.
  • the identification information recording process shown in FIG. 8 is executed.
  • the identification information recording process shown in FIG. 8 is executed, for example, when an instruction to start execution is input via the input unit 24 by the administrator.
  • step S10 of FIG. 8 the acquisition unit 50 acquires the storage pool identification information and the pool group identification information input by the administrator of the recording / playback system 10.
  • step S12 the control unit 52 transfers the storage pool identification information and the pool group identification information acquired in step S10 to the RFID tag 17 of the magnetic tape cartridge 16 belonging to the storage pool of the pool group indicated by the respective identification information. Control to record.
  • the identification information recording process is completed.
  • the magnetic tape cartridge 16 of the storage pool of the same user can be seen by looking at the storage pool identification information and the pool group identification information recorded on the RFID tag 17 of the magnetic tape cartridge 16. It is possible to grasp whether or not the magnetic tape cartridge 16 is the same, and whether or not the magnetic tape cartridge 16 is stored in the same logical library 15.
  • the recording / playback system 100 includes two sets of information processing devices 12 and a tape library 14.
  • the first set of information processing apparatus 12 and the tape library 14 are provided in the first availability zone, and the second set of information processing apparatus 12 and the tape library 14 are provided in the second availability zone.
  • the availability zone corresponds to the data center where the information processing device 12 and the tape library 14 are installed.
  • the first availability zone and the second availability zone belong to the same region, which provides geographical redundancy for the region.
  • the region here means the area where the storage where the object is stored is installed. For example, in the case of the Tokyo region, multiple availability zones have been set up in Tokyo and its neighboring areas, and even if at least one availability zone becomes unavailable due to a disaster or the like, the system can be used continuously. There is.
  • the hardware configuration of the information processing apparatus 12 according to the present embodiment is the same as that of the first embodiment, the description thereof will be omitted. Further, regarding the functional configuration of the information processing apparatus 12 according to the present embodiment, only the allocation rule of the identification information of the storage pool and the identification information of the pool group is different, and the functions are the same as those of the first embodiment. The explanation is omitted. Hereinafter, the rules for allocating the identification information of the storage pool and the identification information of the pool group will be described.
  • the storage pool identification information and the pool group identification information according to the present embodiment are assigned according to the following rules.
  • the identification information of the pool group is unique in the system with the following exceptions. As described above, in this embodiment, geographical redundancy is performed by two availability zones. Therefore, the information processing apparatus 12 and the tape library 14 in the first availability zone and the information processing apparatus 12 and the tape library 14 in the second availability zone have the same configuration. In the present embodiment, the identification information of the corresponding pool group is the same information in the first availability zone and the second availability zone.
  • the storage pool identification information differs for each storage pool within the pool group.
  • the identification information of the storage pool is the same among different pool groups depending on the number of multiple storage pools of the storage pool.
  • the number of multiplexes here is, for example, that the storage pool in which the positive data is recorded is the first multiplex storage pool, and the storage pool in which the secondary data is recorded is the second multiplex storage pool. Means. (4) The storage pool identification information is different among different users in the system.
  • FIG. 10 shows an example of the identification information of the storage pool and the identification information of the pool group allocated according to the above rules.
  • four magnetic tape cartridges 16 are stored in the slots of the logical libraries 15A to 15D of the tape library 14A in the first availability zone.
  • two of the four magnetic tape cartridges 16 stored in the slots of the logical libraries 15A to 15D belong to the storage pool for positive data, and the remaining two belong to the storage pool for secondary data.
  • the storage pool for the primary data and the storage pool for the secondary data of each of the logical libraries 15A to 15D belong to one pool group.
  • the logical libraries 15E to 15H of the tape library 14B of the second availability zone have the same configuration as the logical libraries 15A to 15D of the first availability zone.
  • the identification information of each pool group in the first availability zone is unique in the system such as “PG1A”, “PG1B”, “PG2A”, and “PG2B”. Further, according to the rule of (1) above, the identification information of each pool group in the second availability zone corresponds to the corresponding in the first availability zone such as "PG1A”, “PG1B”, “PG2A”, and "PG2B". It is the same information as the pool group identification information.
  • the identification information of the storage pool in the pool group “PG1A” is different for each storage pool like “Pool101” and “Pool102”.
  • the identification information of the storage pool is different for each storage pool, such as “Pool101” and “Pool102”.
  • the identification information of the storage pool is different for each storage pool, such as "Pool201” and “Pool202”.
  • the identification information of the storage pool is different for each storage pool, such as "Pool201” and "Pool202”.
  • the identification information of the storage pool in which the positive data is recorded is the same "Pool101”. Further, in the pool group "PG1A” and the pool group “PG1B", the identification information of the storage pool in which the secondary data is recorded, that is, the second multiplex storage pool is the same "Pool102”.
  • the identification information of the storage pool in which the positive data is recorded is the same "Pool201”.
  • the identification information of the storage pool in which the secondary data is recorded is the same "Pool202”.
  • the storage pool identification information "Pool 101" and “Pool 102" for user A and the storage pool identification information "Pool 201" and “Pool 202" for user B are different.
  • the identification information of the corresponding pool group is the same information in the plurality of availability zones. Therefore, based on the identification information of the pool group, it is possible to determine whether or not the pool group is a corresponding pool group between the availability zones.
  • the storage pools do not have to be the same between the availability zones.
  • the availability zones For example, in FIG. 10, only “Pool101” may belong to “PG1A” of the first availability zone, and only “Pool102” may belong to “PG1A” of the second availability zone. Even in this case, since “Pool 101" is a storage pool for recording positive data and “Pool 102" is a storage pool for recording secondary data, geographical redundancy can be performed.
  • the number of availability zones is not limited to two, and may be three or more.
  • the storage pool identification information may be different information between different buckets in the system.
  • the bucket here means a virtual storage area associated with the storage area where the object is stored.
  • the bucket may also be referred to as a container.
  • the user specifies the bucket in which the object is saved.
  • the identification information of the storage pool may be different information in different regions in the system.
  • the region here means the area where the storage where the object is stored is installed. The user specifies the region when creating the bucket.
  • the various processors include a CPU, which is a general-purpose processor that executes software (programs) and functions as various processing units, as well as circuits after manufacturing FPGAs (Field Programmable Gate Arrays) and the like.
  • 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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PCT/JP2021/022332 2020-08-21 2021-06-11 情報処理装置、情報処理方法、情報処理プログラム、及び磁気テープカートリッジ Ceased WO2022038874A1 (ja)

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