JP2010218235A - Archive device, distributed management device, and distributed management program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To smoothly execute the storage processing of data in the case of storing data by sharing the storage device of the other system. <P>SOLUTION: In the storage device of the other system connected through an LAN or FC to its own device, specific information for specifying the storage device of the system available as the storage destination of the data received from a user terminal is stored. Then, the storage processing of test data is executed to the storage device as a storage destination candidate determined based on the specific information, and a load to be imposed on data transfer or a load to be imposed on write-in processing is measured. Then, the storage device whose measurement result is equal to or less than a prescribed value is determined as the storage destination of the data received from the user terminal. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an archive device, a distributed management device, and a distributed management program.

  Conventionally, an archiving apparatus has been used to store digital contents such as music, movies, e-mails, images, document data, and the like that are not altered in a unified manner over a long period of time. The archive device is connected to a plurality of terminals via a network, stores various digital contents (hereinafter referred to as data) received from each terminal, and stores the stored data in accordance with a user's reference request. Forward to.

  Specifically, the archive device includes a plurality of recording media (such as Disk array and Tape library), and a processing device that executes a writing process to the recording medium and a reading process from the recording medium. The processing device writes the data received from each terminal to the recording medium. At this time, the processing device generates and stores metadata (reception date, transmission source, storage location, etc.) for each received data. Then, in response to the user's reference request, the processing device refers to the metadata, reads the corresponding data from the recording medium, and transfers it to the user's terminal.

  Here, since the archive device stores data for a long time, the writing area of the recording medium may be insufficient. When there is a shortage of recording media writing area, the administrator needs to secure the writing area by purchasing a new recording medium and adding it to the archive device, or purchasing and installing a new archive device. There is.

  Therefore, in recent years, in order to save rapidly increasing data at a lower cost, there is known an archive device that manages the performance, capacity, cost, etc. of the storage device connected to itself and stores the data in the optimum storage location. (For example, see Patent Documents 1 to 3).

  On the other hand, an archive device that stores data in a storage device managed by another system connected via a network when there is no free space in the storage device connected to itself is also known (for example, Patent Document 4). reference). Specifically, the above-described archive device automatically writes data to the storage device of the other system based on the algorithm set in the storage device in the own system when there is no writing area in the storage device.

JP 2006-3962 A Japanese Patent No. 2924167 JP 11-25059 A Japanese Patent Laid-Open No. 01-183761

  By the way, the above-described conventional technique has a problem that data storage processing may not be executed smoothly when data is stored by sharing a storage device of another system. That is, in the above-described conventional technology, when the storage destination system is executing another process, or when a delay occurs on the network used for data transfer to the storage destination system, data storage is performed. Processing cannot be performed smoothly.

  Accordingly, the present invention has been made to solve the above-described problems of the prior art, and when storing data by sharing a storage device of another system, the data storage process can be smoothly executed. An object of the present invention is to provide an archiving apparatus, a distributed management apparatus, and a distributed management program.

  In order to solve the above-described problems and achieve the object, this device is configured to store the electronic data received from the terminal device by the own device among the storage devices in which the specific information storage unit is controlled by a control device different from the own device. Specific information that is information for specifying the storage device that can be used as a storage destination is stored. In addition, the load measuring unit measures a storage processing load that may be caused by a storage process in the storage device in which the specific information is stored by the specific information storage unit. Then, it is a requirement that the storage determining unit determines to store the electronic data in a storage device in which the storage processing load measured by the load measuring unit is equal to or less than a predetermined value.

  The disclosed apparatus can smoothly execute a data storage process when storing data by sharing a storage device of another system.

FIG. 1-1 is a diagram for explaining an overview of the archive device according to the first embodiment. FIG. 1-2 is a diagram for explaining the characteristics of the archive device according to the first embodiment. FIG. 2 is a block diagram for explaining the configuration of the archive apparatus according to the first embodiment. FIG. 3 is a sequence diagram for explaining processing for acquiring specific information from a LAN-connected system. FIG. 4 is a sequence diagram for explaining a process for acquiring specific information from an FC-connected system. FIG. 5 is a diagram for explaining a procedure of data storage processing in another system according to the first embodiment. FIG. 6 is a diagram for explaining the procedure of the data migration determination process in the first embodiment. FIG. 7 is a diagram for explaining the outline and features of the archive device according to the second embodiment. FIG. 8 is a diagram for explaining the procedure of the data migration determination process in the second embodiment. FIG. 9 is a diagram for explaining a computer that executes the distributed management program according to the first embodiment.

  Exemplary embodiments of an archive device, a distributed management device, and a distributed management program disclosed in the present application will be described below in detail with reference to the accompanying drawings. In the following, an archive device that executes the distributed management program disclosed in the present application will be described as an example.

[Outline and Features of Archive Device in Embodiment 1]
First, the outline and features of the archive apparatus according to the first embodiment will be described with reference to FIGS. 1-1 and 1-2. 1-1 is a diagram for explaining an overview of the archive device according to the first embodiment, and FIG. 1-2 is a diagram for explaining features of the archive device according to the first embodiment.

  The archive device according to the first embodiment stores electronic data (hereinafter referred to as data) received from a user terminal connected to the storage device of the archive device or the storage device of another system connected via a network. The storage is summarized. Specifically, first, the archive device according to the first embodiment stores data received from the user terminal in a storage device that the archive device has. Then, the archive device according to the first embodiment stores the data received from the user terminal in the storage device of another system connected via the network when there is no more free space for storing the data in its own storage device. . The other system in the present embodiment is a system having a storage device controlled by a control device different from the archive device, and hereinafter, the other system may be referred to as “system”.

  For example, as shown in FIG. 1-1, the archive device according to the first embodiment includes a processing unit that performs data storage processing and transfer processing, an electronic data storage unit that stores data, and data stored in the electronic data storage unit. And a management database that stores the metadata of the user, and is connected to the user terminal. Further, as shown in FIG. 1-1, the archive device according to the first embodiment is connected to a system having a storage device controlled by a control device different from the own device via a network. Note that the archive device and the system may be connected via a local area network (LAN) or may be connected via a fiber channel (FC).

  Further, as shown in FIG. 1-1, the management database is a storage unit included in the archive device separately from the electronic data storage unit. Here, the metadata is data in which the reception date, storage location, attributes, and the like of the data received from the user terminal are integrated for each received data, and when the data reference request is received from the user terminal, the processing unit Used by.

  In addition, in FIG. 1A, one user terminal and one system are shown, but actually, the archive device in the first embodiment is further connected to a plurality of user terminals and a plurality of systems, respectively. . Further, in FIG. 1A, only one storage device is shown for each of the archive device and the other system, but actually there are a plurality of storage devices.

  Then, the processing unit of the archive device according to the first embodiment stores the data received from the user terminal in any of a plurality of storage devices included in the processing unit. If the storage unit does not have a free area for storing the received data, the processing unit stores the data received from the user terminal in the storage device of the system connected via the network.

  Specifically, when there is no free space for storing data received from the user terminal in its storage device, the processing unit transfers the received data to the system via the network. At the same time, the processing unit transmits a write request to the system to which the data has been transferred, thereby causing the control device of the corresponding system to execute the data storage process in the storage device.

  Here, the archive device according to the first embodiment is mainly characterized in that data storage processing can be smoothly executed when data is stored by sharing a storage device of another system. This main feature will be briefly described. First, the archive device according to the first embodiment acquires specific information for specifying a storage device of a system that can be used as a storage destination of data received from a user terminal, and stores the specific information in a management database. .

  Specifically, the processing unit of the archive device according to the first embodiment can use an identifier for uniquely identifying a system that can be used as a data storage destination, and a free area that can be used in the storage device of the system. Get the region from the system. Then, the processing unit of the archive device according to the first embodiment stores specific information in which the use area is associated with the acquired identifier and the available area in the management database.

  Here, the available area is information on an area (capacity) allocated for the archive apparatus in the other system before the archive apparatus uses other systems to distribute and store data. The used area is a capacity currently used by the archive device to distribute and store data in a storage device of another system corresponding to the acquired identifier. Note that a method by which the archive apparatus according to the present embodiment acquires an identifier and an available area from another system will be described in detail later for each connection mode (LAN connection and FC connection) between the archive apparatus and another system.

  For example, as shown in FIG. 1-2A, the processing unit of the archive apparatus according to the first embodiment uses specific information “ID: 1, usable area: 100 GB, used area: 20 GB” in the management database. Store. That is, the processing unit of the archive device according to the first embodiment manages the specific information that “20 GB” is currently used in the available area of “100 GB” in the storage device of the system corresponding to “ID: 1”. Store in the database. In this case, the currently available capacity in the storage device of the system in which the archive device in the first embodiment corresponds to “ID: 1” is “80 GB”. Further, as shown in FIG. 1-2A, the processing unit of the archive apparatus according to the first embodiment uses the management database with specific information “ID: 2, available area: 80 GB, used area: 0 GB”. Store.

  Note that the archive device according to the present embodiment acquires, for example, the IP address of the system as an ID if the system is connected by a LAN. In addition, when the system is connected by FC, the archive device in the present embodiment acquires, for example, the world wide name (WWN) or port number of the system as an ID.

  Here, the archiving apparatus according to the first embodiment selects a data storage destination candidate based on the specific information stored in the management database when there is no free space for storing data received from the user terminal in its own storage device. decide. That is, the processing unit of the archive device according to the first embodiment determines a storage device of a system having a free space as a data storage destination candidate in the specific information.

  For example, the processing unit of the archive device according to the first embodiment, when there is no free space in its own storage device, the specific information “ID: 1, available area: 100 GB, used area: The storage device of the system corresponding to “20 GB” is determined as a data storage destination candidate.

  Then, the processing unit of the archive device according to the first embodiment measures the load associated with the storage process in the determined storage destination candidate, and uses the storage destination candidate whose measured load is equal to or less than a predetermined value as the data storage destination. decide. Specifically, the processing unit of the archive device according to the first embodiment executes a test data storage process on the storage destination candidate determined based on the specific information, and the time required for data transfer as a load associated with the storage process or Measure the time required for the writing process. Then, the processing unit of the archive apparatus according to the first embodiment determines a storage destination candidate whose measured load is equal to or less than a predetermined time as a storage destination. In the following, a case where the time required for data transfer is measured as a load associated with the storage process will be described.

  For example, the processing unit of the archive device according to the first embodiment compares a predetermined value (for example, 2 seconds) set in advance with respect to the time required for data transfer with the measurement time. Here, as shown in FIG. 1-2B, when the measurement time is “1.5 seconds”, the processing unit sets the storage destination candidate system as the storage destination of the data received from the user terminal. decide.

  Then, the processing unit of the archive device according to the first embodiment stores the data in the storage device of the system determined as the storage destination. For example, the processing unit stores the data received from the user terminal in the storage device of the system corresponding to the specific information “ID: 1, usable area: 100 GB, used area: 20 GB” determined as the storage destination.

  On the other hand, when the measurement time is “3 seconds”, the processing unit of the archive device according to the first embodiment does not use the storage destination candidate system as a storage destination as illustrated in FIG. And decide. If the processing unit determines not to use the storage destination, it determines another storage destination candidate based on the specific information again.

  For example, the processing unit determines a storage device of the system corresponding to the specific information “ID: 2, usable area: 80 GB, used area: 0 GB” illustrated in FIG. Then, the time measurement process and the comparison process with a predetermined value are executed.

  That is, the processing unit of the archive device according to the first exemplary embodiment determines a storage destination candidate determination process, a load measurement process associated with the storage process in the storage destination candidate, and a predetermined process until a storage device of the storage destination system is determined. A series of processing consisting of comparison processing with the value of is repeatedly executed.

  Here, the processing unit of the archive device according to the first embodiment continuously and continuously measures the load on the storage destination candidates determined not to be used as the storage destination. Specifically, the processing unit of the archiving apparatus according to the first embodiment periodically executes test data transfer processing for another system that is determined not to be used as a storage destination, from the start of data transfer to the completion of reception. Measure the time required for

  For example, the processing unit periodically executes a test data transfer process for a system corresponding to the specific information “ID: 1, usable area: 100 GB, used area: 20 GB” determined not to be used as a storage destination. Then, the time required from the start of data transfer to the completion of reception is measured.

  Then, the processing unit of the archive device according to the first embodiment determines that the storage device of the system that is determined not to be used as the storage destination when the time required for the data transfer measured periodically exceeds a predetermined value over a predetermined period. Decide to migrate the stored data to another storage device. For example, when the transfer time of the test data measured periodically exceeds “2 seconds” over “10 minutes”, the processing unit sets the specific information “ID: 1, usable area: 100 GB, used area: 20 GB”. It is determined to transfer the stored data “20 GB” from the storage device of the corresponding system to another storage device.

  In addition, after the processing unit of the archive device in the first embodiment has decided to migrate, for example, when the transfer time of the test data to the system storing the data decided to migrate becomes equal to or less than a predetermined value The stored data is transferred to another storage device.

  Moreover, the system determination process of a transfer destination is performed similarly to the case where the storage destination of the data received from the user terminal mentioned above is determined, for example.

  For this reason, the archive device according to the first embodiment can avoid a delay when executing the data storage process, and stores data by sharing the storage device of another system as described above. In this case, the data storage process can be executed smoothly.

  In the above-described example, the case where the time required for the data transfer process is measured as the load associated with the data storage process has been described. However, the present embodiment is not limited to this, for example, the load associated with the data storage process. Alternatively, the time required for the data writing process may be measured. In addition to the time required for the data transfer process, the time required for the data write process may be measured as the load associated with the data storage process.

  Further, in the above-described embodiment, the case where the test data is used when measuring the load associated with the data storage process has been described. However, the present embodiment is not limited to this, for example, received from the user terminal It may be a case where a part of data is used.

[Configuration of Archive Device in Embodiment 1]
Next, the configuration of the archive apparatus according to the first embodiment will be described with reference to FIG. FIG. 2 is a block diagram for explaining the configuration of the archive apparatus according to the first embodiment.

  As illustrated in FIG. 2, the archive device 10 according to the first embodiment includes a communication unit 30, an input / output control I / F unit 40, a storage unit 50, and a processing unit 60, and is connected to the user terminal 20. ing. In addition, the archive device 10 according to the first embodiment is connected to the first system 80a via a local area network (LAN) 70 as illustrated in FIG. Furthermore, the archive device 10 according to the first embodiment is connected to the second system 80b via a fiber channel (FC) 90 as shown in FIG.

  The user terminal 20 is connected to the archive device 10 via a network (not shown) and executes a request for writing electronic data (data) to the archive device 10. In FIG. 2, only one user terminal 20 is illustrated, but actually, a plurality of user terminals are further connected to the archive device 10.

  As shown in FIG. 2, the first system 80a includes a communication unit 81a, an input / output control I / F unit 82a, a storage unit 83a, and a processing unit 84a, and is received from the archive device 10 via the LAN 70. The stored data is stored. In FIG. 2, only one first system 80 a is illustrated as a system via the LAN 70, but actually a plurality of systems are further connected to the archive device 10 via the LAN 70.

  The communication unit 81a controls communication with the archive device 10 and transfers various commands received from the archive device 10 via the LAN 70 to the processing unit 84a via the input / output control I / F unit 82a. Further, when the communication unit 81a receives data from the archive device 10 via the LAN 70, the communication unit 81a transmits to the archive device 10 that the reception is completed.

  The input / output control I / F unit 82a is an interface that relays data transmitted and received between the communication unit 81a, the storage unit 83a, and the processing unit 84a.

  The storage unit 83 a stores data received from the archive device 10 via the LAN 70. The storage unit 83a corresponds to the storage device illustrated in FIG. 1-1 and includes a plurality of storage devices that store data.

  The processing unit 84a executes various commands received from the archive device 10 via the communication unit 81a. Specifically, the processing unit 84 a executes a data write command, a data read command, or a data delete command received from the archive device 10, and each time the command is executed, the processing result of the command is stored in the archive device 10. Send to. The processing unit 84a corresponds to the control device shown in FIG.

  The LAN 70 is a communication line that connects the archive device 10 and a system such as the first system 80a and relays data transmitted and received between the archive device 10 and a system such as the first system 80a.

  As shown in FIG. 2, the second system 80b includes a communication unit 81b, an input / output control I / F unit 82b, a storage unit 83b, and a processing unit 84b, which are received from the archive device 10 via the FC 90. The stored electronic data (data) is stored. In FIG. 2, only one second system 80b is shown as a system via the FC 90, but actually a plurality of systems are further connected to the archive device 10 via the FC 90.

  The communication unit 81b controls communication with the archive device 10, and transfers various commands received from the archive device 10 via the FC 90 to the processing unit 84b via the input / output control I / F unit 82b. Further, when receiving data from the archive device 10 via the FC 90, the communication unit 81b transmits to the archive device 10 that the reception has been completed.

  The input / output control I / F unit 82b is an interface that relays data transmitted and received between the communication unit 81b, the storage unit 83b, and the processing unit 84b.

  The storage unit 83b stores data received from the archive device 10 via the FC 90. The storage unit 83b corresponds to the storage device illustrated in FIG. 1-1 and includes a plurality of storage devices that store data.

  The processing unit 84b executes various commands received from the archive device 10 via the communication unit 81b. Specifically, the processing unit 84b executes a data write command, a data read command, or a data delete command received from the archive device 10, and each time the command is executed, the processing result of the command is stored in the archive device 10. Send to.

  Further, when receiving the allocation area recognition command to be described later, the processing unit 84 b presents to the archive apparatus 10 an allocation area that is an area of a storage device that can be allocated to the archive apparatus 10.

  The FC 90 is a communication line that connects the archive device 10 and a system such as the second system 80b and relays data transmitted and received between the archive device 10 and the system such as the second system 80b.

  The communication unit 30 controls communication with a plurality of user terminals connected to the archive device 10 such as the user terminal 20, and write data received from the user terminal is described later via the input / output control I / F unit 40. The data is transferred to the storage determination unit 62. The communication unit 30 controls communication with a plurality of systems connected to the archive device 10 such as the first system 80a or the second system 80b, and transfers various commands via the LAN 70 or the FC 90.

  In addition, the communication unit 30 transmits “to start test data transfer” to the load measurement unit 63 described later. Furthermore, the communication unit 30 receives “test data reception completion” transmitted from a system such as the first system 80a or the second system 80b and transfers it to the load measurement unit 63 described later.

  The input / output control I / F unit 40 is an interface that relays data transmitted and received between the communication unit 30, the storage unit 50, and the processing unit 60.

  The memory | storage part 50 memorize | stores the data received from user terminals, such as the user terminal 20, and the data acquired from systems, such as the 1st system 80a or the 2nd system 80b, by the process part 60 mentioned later. Specifically, the storage unit 50 includes an electronic data storage unit 51 and a specific information storage unit 52, as shown in FIG. The specific information storage unit 52 corresponds to the management database shown in FIG.

  The electronic data storage unit 51 stores data received from a user terminal such as the user terminal 20 via the communication unit 30. For example, the electronic data storage unit 51 stores digital content that has not been modified such as music, movies, e-mails, images, and document data received from the user terminal 20. The electronic data storage unit 51 includes a plurality of storage devices that store data (see FIG. 1-1).

  The specific information storage unit 52 stores information acquired by the processing unit 60 described later. Specifically, the specific information storage unit 52 stores specific information acquired by the processing unit 60 described later from a system such as the first system 80a or the second system 80b. The contents of the specific information stored in the specific information storage unit 52 will be described in detail later. Further, the specific information storage unit 52 stores metadata of data received from a user terminal such as the user terminal 20.

  The processing unit 60 performs various processes on a write request received from a user terminal such as the user terminal 20, and as shown in FIG. Unit 62 and load measuring unit 63.

  The data processing unit 61 acquires specific information for specifying a storage unit of a system that can be used as a storage destination of data received from a user terminal such as the user terminal 20 and stores the specific information in the specific information storage unit 52. Specifically, the data processing unit 61 uses an identifier for uniquely identifying a system that can be used as a data storage destination and an available area that is an available free area in the storage unit of the system as the first system. Acquired from a system such as 80a or the second system 80b. The usable area refers to an area (capacity) allocated for the archive device in each system before the archive device 10 uses the first system 80a or the second system 80b to distribute and store data. ) Information.

  For example, the data processing unit 61 uses “ID: 1” as an identifier for uniquely identifying the first system 80a and “usable area: 100 GB” in the storage unit 83a of the first system 80a. Acquired from 80a. In the case of a system via the LAN 70 such as the first system 80a, the data processing unit 61 acquires, for example, an IP address as “ID”.

  Then, the data processing unit 61 stores specific information in which the use area is associated with the acquired “ID” and “usable area” in the specific information storage unit 52. That is, the data processing unit 61 associates “ID” and “usable area” with the use area that is the area (capacity) currently used in the storage unit of the system corresponding to the acquired “ID”. The specific information is stored in the specific information storage unit 52.

  For example, the data processing unit 61 stores specific information “ID: 1, usable area: 100 GB, used area: 0 GB” in the specific information storage unit 52. Here, if data “20 GB” is stored in the storage unit 83 a of the first system 80 a corresponding to “ID: 1, usable area: 100 GB, used area: 0 GB”, the data processing unit 61 specifies The information is updated to “ID: 1, usable area: 100 GB, used area: 20 GB” and stored in the specific information storage unit 52 (see (A) in FIG. 1-2). In this case, in the storage unit 83a of the first system 80a corresponding to “ID: 1”, the capacity that the archive device 10 can use at this time is “80 GB”.

  Further, the data processing unit 61 stores “ID: 2, usable area: 80 GB, used area: 0 GB” as the specific information corresponding to the second system 80b in the specific information storage unit 52 ((1-2 of FIG. 1-2). A)). In the case of a system via the FC 90, such as the second system 80b, for example, a World wide name (WWN) or a port number is acquired as “ID”.

  The storage determination unit 62 stores the received data in the electronic data storage unit 51 each time it receives write request data from a user terminal such as the user terminal 20 via the communication unit 30. For example, the storage determination unit 62 stores in the electronic data storage unit 51 digital content that has not been modified such as music, movies, e-mails, images, and document data received from a user terminal such as the user terminal 20.

  Further, the storage determination unit 62 is based on the specific information stored in the specific information storage unit 52 when the electronic data storage unit 51 has no free space for storing data received from the user terminal such as the user terminal 20. To determine data storage destination candidates. That is, the storage determination unit 62 determines a storage unit of a system having a free area as the data storage destination candidate in the specific information.

  For example, when there is no free area in the electronic data storage unit 51, the storage determination unit 62 sets the storage unit 83a of the first system 80a corresponding to the specific information “ID: 1, usable area: 100 GB, used area: 20 GB”. It is determined as a data storage destination candidate.

  Then, when storing data in the determined storage destination candidate, the storage determination unit 62 determines a storage destination candidate whose load associated with the storage process is equal to or less than a predetermined value as a data storage destination. Specifically, the storage determination unit 62 performs a test data storage process on the storage destination candidates. For example, the storage determination unit 62 performs a test data storage process on the storage unit 83a of the first system 80a determined as a storage destination candidate.

  When storing the test data in a system such as the first system 80a or the second system 80b, the load measurement unit 63 measures the load associated with the storage process and transmits the measurement result to the storage determination unit 62. Specifically, the load measuring unit 63 performs the “data reception completion time” from the “data transfer start time” received from the communication unit 30 each time the storage determination unit 62 executes test data transfer processing. ”Is measured, and the measurement result is transmitted to the storage determination unit 62.

  The storage determination unit 62 determines a storage destination candidate whose measurement result received from the load measurement unit 63 is equal to or less than a predetermined value as a storage destination. For example, the storage determination unit 62 compares a predetermined value (for example, 2 seconds) preset with respect to the time required for data transfer with the measurement time. Here, when the measurement time is “1.5 seconds”, the storage determination unit 62 determines the storage destination candidate first system 80a as the storage destination of the data received from the user terminal 20 (FIG. 1-2). (See (B)).

  Then, the storage determining unit 62 stores the data in the storage unit 83a of the first system 80a determined as the storage destination. For example, the storage determination unit 62 stores the data received from the user terminal in the storage unit 83a of the first system 80a corresponding to the specific information “ID: 1, usable area: 100 GB, usage area: 20 GB” determined as the storage destination. Store.

  On the other hand, when the measurement time is “3 seconds”, the storage determination unit 62 determines that the storage destination candidate first system 80a is not used as a storage destination (see FIG. 1-2B). If the storage determination unit 62 determines that the storage destination is not used, another storage is selected from the system group connected via the LAN 70 or the system group connected via the FC 90 based on the specific information again. Determine the destination candidate.

  For example, the storage determination unit 62 determines the storage unit 83b of the second system 80b corresponding to the specific information “ID: 2, usable area: 80 GB, used area: 0 GB” as a new storage destination candidate, and performs the above-described test. Data storage processing and comparison processing between the measurement result received from the load measuring unit 63 and a predetermined value are executed.

  That is, the storage determination unit 62 performs a series of processes including a storage destination candidate determination process, a test data storage process, and a comparison process with a predetermined value until the storage unit of the system that is the storage destination is determined. Execute repeatedly.

  Here, the storage determination unit 62 periodically and continuously executes the test data transfer process for the storage destination candidates determined not to be used as the storage destination. Specifically, the storage determination unit 62 periodically performs test data transfer processing on a system that is determined not to be used as a storage destination, and receives data from the start of data transfer measured by the load measurement unit 63. A comparison process between the time required for completion and a predetermined value is executed.

  For example, the storage determination unit 62 periodically transmits test data to the first system 80a corresponding to the specific information “ID: 1, usable area: 100 GB, used area: 20 GB” determined not to be used as the storage destination. Execute the transfer process. Then, the storage determining unit 62 compares the time required from the start of data transfer to the completion of reception measured by the load measuring unit 63 with a predetermined time.

  The storage determination unit 62 stores the data in the storage unit of the system that has been determined not to be used as a storage destination when the time required for the transfer of the test data that is periodically executed exceeds a predetermined value over a predetermined period. Decide to migrate the data to another storage unit. For example, when the transfer time of the test data periodically executed exceeds “2 seconds” over “10 minutes”, the storage determination unit 62 specifies the specific information “ID: 1, available area: 100 GB, used area: 20 GB. The stored data “20 GB” from the storage unit 83a of the first system 80a corresponding to “” is determined to be transferred to another storage unit.

  The storage determination unit 62 determines that the data has been transferred and, for example, when the transfer time of the test data to the first system 80a becomes a predetermined value (2 seconds) or less, To the storage unit.

  Moreover, the system determination process of a transfer destination is performed similarly to the case where the storage destination of the data received from the user terminal mentioned above is determined, for example.

[Processing Procedure by Archive Device in Embodiment 1]
Next, processing by the archive device according to the first embodiment will be described with reference to FIGS. 3, 4, 5, and 6. FIG. 3 is a sequence diagram for explaining processing for acquiring specific information from a LAN-connected system, and FIG. 4 is a sequence diagram for explaining processing for acquiring specific information from an FC-connected system. is there. FIG. 5 is a diagram for explaining the procedure of data storage processing in another system in the first embodiment, and FIG. 6 is a diagram for explaining the procedure of data migration determination processing in the first embodiment. .

[Procedure for acquiring specific information from a LAN-connected system]
As shown in FIG. 3, first, when the administrator of the first system 80a shares an unused area (step S101), the data processing unit 61 of the archive device 10 according to the first embodiment uses the IP address of the first system 80a. Then, a shared area that is a shared unused area is acquired (step S102). For example, the data processing unit 61 acquires “ID: 1” and “shared area: 100 GB” which are IP addresses from the first system 80a.

  Then, the data processing unit 61 transmits a test data write command for the acquired shared area to the first system 80a (step S103), and the processing unit 84a receives the test data write command (step S104). Then, the processing unit 84a executes a command for writing test data to the shared area (step S105), and transmits write completion information, which is information indicating completion of writing, to the archive device 10 (step S106).

  When the data processing unit 61 receives the write completion information (step S107), the data processing unit 61 transmits a test data read command written in the shared area by the processing unit 84a to the first system 80a (step S108). Then, the processing unit 84a receives a test data read command (step S109), and executes the test data read command written in the shared area (step S110). The test data read from the shared area is transmitted to the archive device 10 (step S111).

  When the data processing unit 61 receives the test data transmitted by the processing unit 84a (step S112), the data processing unit 61 transmits a test data deletion command written in the shared area by the processing unit 84a to the first system 80a (step S112). S113).

  Then, the processing unit 84a receives the test data deletion command transmitted by the data processing unit 61 (step S114), executes the test data deletion command written in the shared area (step S115), and the deletion is completed. Deletion completion information, which is information indicating the completion, is transmitted to the archive device 10 (step S116). When the data processing unit 61 receives the deletion completion information transmitted by the processing unit 84a (step S117), the data processing unit 61 recognizes “shared area” as “available area”, and identifies “ID” and the recognized available area. The specific information is stored in the specific information storage unit 52 (step S118). For example, the data processing unit 61 recognizes “ID: 1, usable area: 100 GB” and stores “ID: 1, usable area: 100 GB, used area: 0 GB” in the specific information storage unit 52 as specific information. To do.

[Procedure for acquiring specific information from a system connected to FC]
As shown in FIG. 4, first, when the processing unit 84b transmits allocation setting completion information for the archive device 10 in the unused area of the storage unit 83b by the administrator of the second system 80b (step S201), the first embodiment The data processing unit 61 of the archive device 10 receives the setting completion information (step S202). The data processing unit 61 transmits an allocation area recognition command to the second system 80b (step S203), and the processing unit 84b receives the recognition command transmitted by the data processing unit 61 (step S204).

  Then, the processing unit 84b transmits “ID” and “assignment area”, which are WWNs or port numbers, to the archive device 10 (step S205), and the data processing unit 61 transmits the “ID” and the “ID” transmitted by the processing unit 84b. The “allocation area” is received (step S206). For example, the data processing unit 61 receives “ID: 2” and “allocation area: 80 GB”.

  Then, the data processing unit 61 transmits a command for creating a file system for managing the received “allocation area” to the second system 80b (step S207), and the processing unit 84b receives the command for creating the file system. (Step S208). For example, the data processing unit 61 transmits a command for creating a file system for managing “allocation area: 80 GB” to the second system 80 b to the second system 80 b, and the processing unit 84 b issues a command for creating the file system. Receive.

  Then, the processing unit 84b executes the file system creation command received from the data processing unit 61 (step S209), and transmits the file system creation completion information, which is information on completion of the file system creation, to the archive device 10 ( Step S210).

  When the data processing unit 61 receives the file system creation completion information from the processing unit 84b (step S211), the data processing unit 61 recognizes the “allocation area” as the “usable area” and identifies the “ID” and the recognized usable area. Information is stored in the specific information storage unit 52 (step S212). For example, the data processing unit 61 recognizes “ID: 2, available area: 80 GB” and stores the specific information “ID: 2, available area: 80 GB, used area: 0 GB” in the specific information storage unit 52. To do.

[Procedure for Data Storage Processing in Other System in Embodiment 1]
As illustrated in FIG. 5, first, when the archive device 10 according to the first embodiment receives write data from a user terminal such as the user terminal 20 (Yes in step S <b> 301), the storage determination unit 62 stores data in the electronic data storage unit 51. It is determined whether there is a free area to be stored (step S302). Then, when there is a free space in the electronic data storage unit 51 (Yes in step S302), the storage determination unit 62 stores the data received from the user terminal such as the user terminal 20 in the electronic data storage unit 51 (step S303).

  On the other hand, when there is no free space (No at Step S302), the storage determination unit 62 refers to the specific information and determines a storage destination candidate (Step S304).

  Then, the storage determination unit 62 executes test data storage processing for the system determined as the storage destination candidate (step S305). Then, the load measurement unit 63 measures the time required for data transfer as a load associated with the storage process (step S306), and transmits the measurement result to the storage determination unit 62. Then, the storage determination unit 62 compares the measurement result received from the load measurement unit 63 with a predetermined value set in advance, and determines whether or not the load associated with the data storage process is equal to or less than the predetermined value. This is performed (step S307).

  If the measurement result is equal to or smaller than the predetermined value (Yes at Step S307), the storage determining unit 62 determines a storage destination candidate as a data storage destination (Step S308).

  The storage determining unit 62 stores the data in the storage unit of the system determined as the storage destination (step S309).

  On the other hand, if the measurement result exceeds the predetermined value (No at Step S307), the storage determination unit 62 determines not to use the storage destination candidate as the storage destination (Step S310), returns to Step S304, and specifies again. Other storage destination candidates are determined based on the information.

  That is, the storage determination unit 62 compares the storage destination candidate determination process, the load measurement process associated with the storage process in the storage destination candidate, and a predetermined value until the storage device of the storage destination system is determined. A series of processes consisting of processes is repeatedly executed.

  In all systems in which specific information is stored in the specific information storage unit 52, if the load required for data transfer exceeds a predetermined value, the storage determination unit 62 changes the predetermined value (to a larger value). The load threshold may be changed. Further, the storage determination unit 62 may present a change request for a predetermined value to the administrator of the archive device 10.

[Figure for explaining the procedure of the data migration determination process in the first embodiment]
As shown in FIG. 6, first, when it is determined that the storage destination candidate is not used as a storage destination (Yes in Step S401), the storage processing unit 62 determines whether or not the storage destination candidate is used as a storage destination. The test data is periodically transferred, and a comparison process between the time required for the test data transfer measured by the load measuring unit 63 and a predetermined value is executed (step S402).

  For example, the storage determination unit 62 periodically transmits test data to the first system 80a corresponding to the specific information “ID: 1, usable area: 100 GB, used area: 20 GB” determined not to be used as the storage destination. Execute the transfer process. Then, the storage determining unit 62 compares the time required from the start of data transfer to the completion of reception measured by the load measuring unit 63 with a predetermined time.

  Then, the storage determining unit 62 determines whether or not the time required for the test data transfer measured by the load measuring unit 63 exceeds a predetermined value (step S403). Here, when the measurement result does not exceed the predetermined value (No in Step 403), the storage determination unit 62 stores the storage destination candidate determined not to be used as the storage destination in the next storage destination of data. It is determined not to be excluded from the candidates (step S404), and the process ends.

  For example, the storage determination unit 62 stores the storage unit 83a of the first system 80a corresponding to the specific information “ID: 1, usable area: 100 GB, used area: 20 GB” when storing data next time. It is determined not to be excluded from the process, and the process ends. Note that the storage determination unit 62 may determine not to exclude from the storage destination candidates when a measurement result that does not exceed a predetermined value continues for a preset period or longer.

  On the other hand, when the measurement result exceeds the predetermined value (Yes at Step 403), the storage determining unit 62 determines whether or not the period exceeding the predetermined value reaches the predetermined period (Step S405). . Here, when the predetermined period has not been reached (No at Step S405), the storage determining unit 62 returns to Step S402 and periodically executes a comparison process between the time required for the test data transfer and the predetermined value.

  On the other hand, when the predetermined period has been reached (Yes at step S405), the storage determination unit 62 determines to transfer the data already stored in the storage unit of the system determined not to be used as the storage destination to another storage unit. (Step S406). For example, when the transfer time of the test data periodically executed exceeds “2 seconds” over “10 minutes”, the storage determination unit 62 specifies the specific information “ID: 1, available area: 100 GB, used area: 20 GB. The stored data “20 GB” from the storage unit 83a of the first system 80a corresponding to “” is determined to be transferred to another storage unit.

  The storage determination unit 62 determines that the data has been transferred and, for example, when the transfer time of the test data to the first system 80a becomes a predetermined value (2 seconds) or less, To the storage unit.

  Moreover, the system determination process of a transfer destination is performed similarly to the case where the storage destination of the data received from the user terminal mentioned above is determined, for example.

[Effect of Example 1]
As described above, according to the first embodiment, the specific information storage unit 52 stores data received from the user terminal 20 by the archive device 10 among storage devices controlled by a processing unit different from the archive device 10. Specific information for specifying a storage device that can be used as a destination is stored. Then, the load measuring unit 63 measures the load associated with the data storing process in the storage device in which the specific information is stored by the specific information storage unit 52. Then, the storage determining unit 62 determines to store the data in the storage device of the system in which the load measured by the load measuring unit 63 is equal to or less than a predetermined value. Therefore, a delay in executing the data storage process can be avoided, and the data storage process can be smoothly executed when storing data by sharing the storage device of another system.

  Further, according to the first embodiment, the storage determination unit 62 determines not to use the storage unit of the system in which the load associated with the data storage process measured by the load measurement unit 63 exceeds a predetermined value as the storage destination. If the load associated with the data storage processing in the storage unit of the corresponding system measured by the load measuring unit 63 after the determination is greater than or equal to a predetermined value over a predetermined period, the current storage unit of the corresponding system It is decided to transfer the data stored in step (b) to another storage unit. Therefore, it is possible to exclude the storage unit of the system that causes a delay when executing the data storage process from the storage destination, and when storing the data by sharing the storage device of another system, the data storage process It becomes possible to execute smoothly.

  Further, according to the first embodiment, the load measuring unit 63 loads the data transfer on the communication line connecting the archive device 10 and the storage device of the other system or the other system as a load accompanying the data storage process. The load applied to the data writing process in the storage device is measured. Therefore, it is possible to analyze in detail the delay associated with the data storage process that was not necessarily reflected in the CPU load factor monitored in the prior art, and when storing data by sharing the storage device of another system, The storage process can be executed more smoothly.

  In the first embodiment described above, a case has been described in which data is migrated from another system in which the load associated with data storage processing continues to be high. In the second embodiment, a case where data is migrated from another system when a storage device is added to the archive device by the administrator will be described.

[Outline and Features of Archive Device in Embodiment 2]
First, the main features of the archive apparatus according to the second embodiment will be described with reference to FIG. FIG. 7 is a diagram for explaining the outline and features of the archive device according to the second embodiment.

  When the storage device is added under the control of the administrator by the administrator, the archive device according to the second embodiment has a capacity corresponding to the added storage device among the data stored in a distributed manner in the storage devices of other systems. To transfer the data to the added storage device. For example, as shown in FIG. 7, the archive device according to the second embodiment has a storage device of “20 GB” added by the administrator under the control of the administrator, and “20 GB” of the data distributedly stored in the system is added. Are to be transferred to the added storage device.

  The data transferred to the added storage device may be, for example, data stored in the storage device of the system that requires a long time for data transfer. That is, the storage device of the system that cannot smoothly execute the data storage process may not be used.

  Alternatively, the data transferred to the added storage device may be data stored in the storage device of the system that requires a short time for data transfer. In other words, the free space may be expanded in a storage device of a system that can execute the data storage process smoothly.

  In addition, the timing of transferring data to the added storage device may be a time when no other processing is executed in the archive device.

  For this reason, the archive device according to the second embodiment can reduce the extra burden on the storage device of the system that performs distributed storage of data, and stores data by sharing the storage device of other systems. In this case, the data storage process can be executed more smoothly.

[Configuration of Archive Device in Embodiment 2]
Next, the configuration of the archive apparatus according to the second embodiment will be described with reference to FIG. FIG. 2 is a block diagram for explaining the configuration of the archive device according to the first embodiment. The archive device 10 according to the second embodiment has the same blocks as those of the archive device according to the first embodiment. The contents of the processing are different from those in the first embodiment. Hereinafter, this will be mainly described.

  When the storage device is added to the electronic data storage unit 51 by the administrator of the archive device 10, the storage determination unit 62 recognizes the added capacity. For example, the storage determination unit 62 recognizes “20 GB” that is the capacity of the storage device added by the administrator.

  The storage determination unit 62 recognizes the capacity from the storage unit of the system group such as the first system 80a connected via the LAN 70 or the storage unit of the system group such as the second system 80b connected via the FC. Decide to migrate the data corresponding to. For example, the storage determination unit 62 determines to transfer “20 GB” data from the storage unit 83a of the first system 80a.

  Note that the data transferred to the added storage device may be, for example, data stored in the storage unit of the system that requires a long time for data transfer. That is, you may not make it utilize the memory | storage part of the system which cannot perform a data storage process smoothly.

  Alternatively, the data transferred to the added storage device may be data stored in the storage unit of the system that requires a short time for data transfer. That is, the free space may be expanded in the storage unit of the system that can execute the data storage process smoothly.

  In addition, the timing of transferring data to the added storage device may be a time when no other processing is executed in the archive device.

[Procedure for Data Migration Determination Processing in Embodiment 2]
Next, the procedure of data migration determination processing in the second embodiment will be described with reference to FIG. FIG. 8 is a diagram for explaining the procedure of the data migration determination process in the second embodiment.

  As shown in FIG. 8, first, in the archive device 10 according to the second embodiment, when a storage device is added to the electronic data storage unit 51 by the administrator of the archive device 10 (Yes in step S501), the storage determination unit 62 The capacity of the added storage device is recognized (step S502). For example, the storage determination unit 62 recognizes the capacity “20 GB” of the added storage device.

  The storage determination unit 62 recognizes from the storage unit of the system group such as the first system 80a connected via the LAN 70 or the storage unit of the system group such as the second system 80b connected via the FC. It is determined that the data corresponding to the capacity thus transferred is transferred (step S503). For example, the storage determination unit 62 determines to transfer “20 GB” data from the storage unit 83a of the first system 80a.

[Effect of Example 2]
As described above, according to the second embodiment, when a storage device is added to the electronic data storage unit 51, the storage determination unit 62 stores data corresponding to the capacity of the added storage device as a storage device of another system. To move to the added storage device. Accordingly, it is possible to reduce an extra burden on the storage device of the system that performs distributed storage of data, and smoothly executes the data storage process when storing data by sharing the storage device of other systems. It becomes possible.

  Although the first and second embodiments have been described so far, the present invention may be implemented in various different forms other than the first and second embodiments described above. Therefore, in the following, various different embodiments will be described by being divided into (1) to (3).

(1) Load Associated with Data Storage Processing In the first and second embodiments described above, the load associated with the storage processing in the storage device of another system has been described for the time required for data transfer or the time required for write processing. However, the present embodiment is not limited to this. For example, the data transfer amount per unit time or the data write amount per unit time may be measured.

(2) System Configuration, etc. Further, the processing procedures, specific names, information including various data and parameters described in the above embodiments can be arbitrarily updated unless otherwise specified. For example, the administrator can arbitrarily set a predetermined value or a predetermined period in the first and second embodiments.

  Each component of each illustrated device is functionally conceptual and does not necessarily have to be the same as the physically illustrated component. That is, the specific form (for example, the form of FIG. 2) of each processing part and each memory | storage part is not necessarily shown in figure. For example, the case where the storage determination part 62 and the load measurement part 63 are integrated may be sufficient. Further, all or any part of each processing function performed in each device may be realized by a CPU and a program analyzed and executed by the CPU, or may be realized as hardware by wired logic.

(3) Distributed Management Program By the way, in the first and second embodiments, the case where various processes are realized by hardware logic has been described. However, the present embodiment is not limited to this and is prepared in advance. The program may be executed on a computer. Therefore, in the following, an example of a computer that executes a distributed management program having the same function as that of the archive device 10 described in the first embodiment will be described with reference to FIG. FIG. 9 is a diagram for explaining a computer that executes the distributed management program according to the first embodiment.

  As illustrated in FIG. 9, a computer 1000 as an information processing apparatus includes a keyboard 1020, a display 1030, a RAM 1040, an HDD 1050, a CPU 1060, a ROM 1070, and a communication unit 30. The keyboard 1020, the display 1030, the RAM 1040, the HDD 1050, the CPU 1060, the ROM 1070, and the communication unit 30 are connected by a bus 1010 or the like. Furthermore, the computer 1000 is connected to the user terminal 20 via the communication unit 30, as shown in FIG. The computer 1000 is connected to the first system 80a via the LAN 70, and is connected to the second system 80b via the FC 90.

  In the ROM 1070, a distributed management program that exhibits the same function as that of the archive device 10 described in the first embodiment, that is, as shown in FIG. 9, a data processing program 1071, a storage determination program 1072, and a load measurement program 1073 are stored. Stored in advance. Note that these programs 1071 to 1073 may be appropriately integrated or distributed in the same manner as each component of the archive device 10 shown in FIG.

  Then, the CPU 1060 reads out these programs 1071 to 1073 from the ROM 1070 and executes them, so that each program 1071 to 1073 is a data processing process 1061, a storage determination process 1062, and a load measurement process 1063 as shown in FIG. Become functional. Each process 1061 to 1063 corresponds to the data processing unit 61, the storage determining unit 62, and the load measuring unit 63 shown in FIG.

  The HDD 1050 is provided with electronic data storage data 1051 and specific information storage data 1052 as shown in FIG. The electronic data storage data 1051 and the specific information storage data 1052 correspond to the electronic data storage unit 51 and the specific information storage unit 52 used in FIG. Then, the CPU 1060 registers the electronic data storage data 1041 and the specific information storage data 1042 with respect to the electronic data storage data 1051 and the specific information storage data 1052, reads the electronic data storage data 1041 and the specific information storage data 1042, and stores them in the RAM 1040. Store. The CPU 1060 executes conversion processing based on the electronic data storage data 1041 and the specific information storage data 1042 stored in the RAM 1040.

  The programs 1071 to 1073 are not necessarily stored in the ROM 1070 from the beginning. For example, a flexible disk (FD), a CD-ROM, an MO disk, a DVD disk, and a magneto-optical disk inserted into the computer 1000. A “portable physical medium” such as a disk or an IC card, or a “fixed physical medium” such as an HDD provided inside or outside the computer 1000, and further, the computer 1000 via a public line, the Internet, a LAN, a WAN, or the like. Each program may be stored in “another computer (or server)” connected to the computer, and the computer 1000 may read and execute each program from these programs.

  Regarding the embodiment including the above-described embodiment, the following additional notes are disclosed.

(Additional remark 1) It memorize | stores the specific information for specifying the said memory | storage device which can be used as a storage location of the electronic data which the own apparatus received from the terminal device among the memory | storage devices controlled by the control apparatus different from an own apparatus. A specific information storage unit,
A load measuring unit that measures a storage processing load that will be generated by a storage process in the storage device in which the specific information is stored in the specific information storage unit;
A storage determining unit that determines to store the electronic data in a storage device in which the storage processing load measured by the load measuring unit is a predetermined value or less;
An archiving apparatus comprising:

(Additional remark 2) The said storage determination part determines not storing the said electronic data about the said memory | storage device with which the said storage processing load measured by the said load measurement part exceeded the said predetermined value, and after the said determination If the storage processing load of the storage device measured by the load measuring unit is equal to or greater than the predetermined value over a predetermined period, the electronic data currently stored in the storage device is stored in another storage device. The archiving apparatus according to appendix 1, wherein the archiving apparatus is determined to be transferred to.

(Additional remark 3) The said load measurement part measures the load concerning the data transfer process in the communication line which connects the own apparatus and the said memory | storage device, or the data writing process in the said memory | storage device as the said storage processing load The archive device according to appendix 1 or 2, characterized in that:

(Supplementary Note 4) When the storage unit is added under the control of the own device, the storage determining unit receives electronic data corresponding to the storage capacity of the added storage unit from the storage device. The archiving apparatus according to appendix 2, wherein the archiving apparatus is determined to be transferred to.

(Additional remark 5) It memorize | stores the specific information for specifying the said memory | storage device which can be used as a storage location of the electronic data which the own apparatus received from the terminal device among the memory | storage devices controlled by the control apparatus different from an own apparatus. A specific information storage unit,
A load measuring unit that measures a storage processing load that will be generated by a storage process in the storage device in which the specific information is stored in the specific information storage unit;
A storage determining unit that determines to store the electronic data in a storage device in which the storage processing load measured by the load measuring unit is a predetermined value or less;
A distributed management apparatus comprising:

(Additional remark 6) The said storage determination part determines not storing the said electronic data about the said memory | storage device with which the said storage processing load measured by the said load measurement part exceeded the said predetermined value, and after the said determination If the storage processing load of the storage device measured by the load measuring unit is equal to or greater than the predetermined value over a predetermined period, the electronic data currently stored in the storage device is stored in another storage device. 6. The distributed management device according to appendix 5, wherein the distribution management device is determined to shift to

(Supplementary note 7) The load measuring unit measures, as the storage processing load, a load related to data transfer on a communication line connecting the own device and the storage device or a load related to data write processing in the storage device. The distributed management device according to appendix 5 or 6, characterized in that:

(Supplementary Note 8) When the storage unit is added under the control of the own device, the storage determining unit sends electronic data corresponding to the storage capacity of the added storage unit from the storage device to the added storage unit. 7. The distributed management device according to appendix 6, wherein the distribution management device is determined to shift to

(Supplementary Note 9) Predetermined specific information for specifying the storage device that can be used as a storage destination of electronic data received by the own device from the terminal device among the storage devices controlled by a control device different from the own device Specific information storage procedure to be stored in the storage unit,
A load measurement procedure for measuring a storage processing load that will be caused by a storage process in the storage device in which the specific information is stored in the predetermined storage unit;
A storage determination procedure for determining to store the electronic data in a storage device in which the storage processing load measured by the load measurement procedure is equal to or less than a predetermined value;
Is a distributed management program that causes a computer to execute.

(Supplementary Note 10) After the determination, the storage determination procedure determines that the electronic data is not stored for the storage device in which the storage processing load measured by the load measurement procedure exceeds the predetermined value. When the storage processing load of the storage device measured by the load measurement procedure is equal to or greater than the predetermined value over a predetermined period, the electronic data currently stored in the storage device is stored in another storage device. The distributed management program according to appendix 9, wherein the distribution management program is determined to be transferred to.

(Additional remark 11) The said load measurement procedure measures the load concerning the data write process in the said memory | storage device or the load concerning the data transfer on the communication line which has connected the own apparatus and the said memory | storage device as the said storage processing load The distributed management program according to appendix 9 or 10, characterized by:

(Supplementary Note 12) In the storage determination procedure, when a storage unit is added under the control of the own device, electronic data corresponding to the storage capacity of the added storage unit is transferred from the storage device to the added storage unit. 11. The distributed management program according to appendix 10, wherein the distribution management program is determined to be transferred to

DESCRIPTION OF SYMBOLS 10 Archive apparatus 20 User terminal 30 Communication part 40 Input / output control I / F part 50 Storage part 51 Electronic data storage part 52 Specific information storage part 60 Processing part 61 Data processing part 62 Storage determination part 63 Load measurement part 70 LAN
80a first system 80b second system 81a communication unit 81b communication unit 82a input / output control I / F unit 82b input / output control I / F unit 83a storage unit 83b storage unit 84a processing unit 84b processing unit 90 FC

Claims (5)

Specific information storage for storing specific information for specifying the storage device that can be used as a storage destination of electronic data received by the own device from the terminal device among the storage devices controlled by a control device different from the own device And
A load measuring unit that measures a storage processing load that will be generated by a storage process in the storage device in which the specific information is stored in the specific information storage unit;
A storage determining unit that determines to store the electronic data in a storage device in which the storage processing load measured by the load measuring unit is a predetermined value or less;
An archiving apparatus comprising:   The storage determination unit determines that the electronic data is not stored for the storage device in which the storage processing load measured by the load measurement unit exceeds the predetermined value, and the load measurement is performed after the determination. When the storage processing load of the storage device measured by the storage unit is equal to or greater than the predetermined value over a predetermined period, the electronic data currently stored in the storage device is determined to be transferred to another storage device The archiving apparatus according to claim 1, wherein:   The load measuring unit measures, as the storage processing load, a load related to data transfer on a communication line connecting the own device and the storage device or a load related to data write processing in the storage device. The archive device according to claim 1 or 2. Specific information storage for storing specific information for specifying the storage device that can be used as a storage destination of electronic data received by the own device from the terminal device among the storage devices controlled by a control device different from the own device And
A load measuring unit that measures a storage processing load that will be generated by a storage process in the storage device in which the specific information is stored in the specific information storage unit;
A storage determining unit that determines to store the electronic data in a storage device in which the storage processing load measured by the load measuring unit is a predetermined value or less;
A distributed management apparatus comprising: Specific information for specifying the storage device that can be used as a storage destination of electronic data received by the own device from the terminal device among the storage devices controlled by a control device different from the own device is stored in a predetermined storage unit. Specific information storing procedure to be stored;
A load measurement procedure for measuring a storage processing load that will be caused by a storage process in the storage device in which the specific information is stored in the predetermined storage unit;
A storage determination procedure for determining to store the electronic data in a storage device in which the storage processing load measured by the load measurement procedure is equal to or less than a predetermined value;
A distributed management program for causing a computer to execute.

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