JP2013080409A - Storage system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase processing speed even for a recording medium with low transfer speed.SOLUTION: In recording data in a recording medium with low transfer speed such as an optical disk from a recording medium with high transfer speed such as a magnetic disk, data is divided and distributedly and simultaneously recorded in a plurality of recording media with low transfer speed, thereby enabling processing speed to be increased even for a recording medium with low transfer speed. Then, at the time of reading, divided data is read from the recording media and combined.

Description

  The present invention relates to a storage system having a configuration using a plurality of storage control devices and storage devices.

  In the case of processing data recorded in a storage device, an operation in which a plurality of processing devices are connected to a network and data in the storage device is distributed to a plurality of processing devices is increasing. For example, when compressing data in a storage device, a proposal has been made to increase the speed of data compression processing by distributing data to a plurality of computers connected to a network and performing compression processing (for example, patents). Reference 1).

  On the other hand, in recent storage systems, a recording method such as RAID (Redundant Arrays of Independent Disks) that records data using a plurality of storage devices, or a virtual file system that makes a plurality of storage devices appear as one storage device. Etc.

JP 2000-132371 A

  In the case of a conventional storage system, no consideration is given to a method of using distributed processing of data on a recording medium that is slow in reading and writing.

  An object of the present invention is to increase the processing speed even for a recording medium having a low transfer rate.

  As an example, the object of the present invention can be achieved by recording data in a distributed manner when recording data from a recording medium having a high transfer rate to a recording medium having a low transfer rate.

  According to the present invention, the processing speed can be increased even for a recording medium having a low transfer rate.

  Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

1 is a diagram showing a configuration of a first embodiment of a storage system of the present invention. FIG. FIG. 3 is a flowchart showing a first embodiment of an operation procedure on the storage control device side in the storage system of the present invention. It is explanatory drawing which shows an example of the directory structure of the data shown to a user with the storage control apparatus in the storage system of this invention. It is explanatory drawing which showed the example in which the data actually exist in each storage apparatus in the storage system of this invention. It is the flowchart figure which showed an example of the operation | movement procedure of the determination of the processing storage apparatus by the side of a storage control apparatus in the storage system of this invention. It is explanatory drawing which shows an example of the prediction method of the storage apparatus which the storage control apparatus side processes in the storage system of this invention. It is explanatory drawing which shows the 1st Example of the command to each storage apparatus issued by the storage control apparatus side in the storage system of this invention. FIG. 3 is a flowchart showing a first embodiment of an operation procedure on each storage device side in the storage system of the present invention. It is the figure which showed the 2nd Example structure of the storage system of this invention. It is the flowchart figure which showed the 2nd Example of the operation | movement procedure by the side of a storage control apparatus in the storage system of this invention. It is explanatory drawing which shows the 2nd Example of the command to each storage apparatus issued by the storage control apparatus side in the storage system of this invention. It is the flowchart figure which showed the 2nd Example of the operation procedure by the side of each storage apparatus in the storage system of this invention. It is the figure which showed the 3rd Example structure of the storage system of this invention. It is the figure which showed the structure of the 4th Example of the storage system of this invention. It is the figure which showed the 5th Example structure of the storage system of this invention. It is the figure which showed the basic composition of the 5th Example of the storage system of this invention.

  Examples of the present invention will be described below.

  In the first embodiment, the storage control terminal and each storage device are connected via a network, and each data stored in each storage device is written and stored in a recording medium by a read / write unit in each storage device. This is an example.

  FIG. 1 is a diagram showing a configuration of a first exemplary embodiment of the present invention, in which a storage control device 100 and a plurality of storage devices (A to E) (200 to 204) are connected via a network 300. Data communication is possible. The storage control device 100 is a device capable of managing and controlling a plurality of storage devices (A to E) (200 to 204) connected to a network, and is a control processing device such as a PC. The storage devices (A to E) (200 to 204) are data recording devices that can be connected to a network, and are recording devices such as NAS (Network Attached Storage) equipped with an optical disk drive or the like as a read / write unit.

  The configuration of the storage control apparatus 100 will be described. The data processing unit 110 in the storage control apparatus 100 has a function of managing data management and data transmission / reception operations of the storage apparatuses (A to E) (200 to 204). It is composed of an LSI such as a CPU and a memory circuit. The data processing unit 110 includes a processing data sorting unit 111 and a command issuing unit 112 that issues an instruction to each storage. The display unit 120 in the storage control device 100 is a portion that presents information related to data processing of the storage device to the user, and is a display device such as an LCD that performs notification related to processing. The input unit 130 in the storage control apparatus 100 is a part for inputting a processing command from a user, and is an input device such as a keyboard, a mouse, or a touch panel for inputting a processing command related to data in the storage device. The database 140 in the storage control device 100 is a part that performs processing for storing management information of each storage device, has a function of holding information related to data of each storage device, and is a storage device such as an HDD or a memory. .

  On the other hand, for example, the configuration on the storage device A200 side will be described. The data processing unit 210 in the storage device A200 has a function of inputting / outputting data and processing data, and is configured by an LSI such as a CPU, a memory circuit, or the like. . The data processing unit 210 includes a command analysis execution unit 211 that analyzes a command from the storage control device 100 connected to the network and controls processing in accordance with a command from the storage control device 100. In accordance with the command, processing for transmitting data of the recording unit 220, receiving data from the outside, and writing data to the read / write unit 230 is performed. The recording unit 220 in the storage device A200 is a data storage device such as an HDD having a function of storing data. The read / write unit 230 in the storage device A200 is a device such as an optical disc drive, a tape drive, or a memory drive that can take in and out a recording medium such as an optical disc and can write data to the optical disc and read data from the optical disc. .

  The network 300 is a network environment such as a LAN (Local Area Network) or the Internet.

  The first embodiment of the present invention is constituted by the components as described above.

  The first embodiment will be described in more detail with reference to FIGS.

  First, processing on the storage control device 100 side will be described with reference to FIGS. FIG. 2 is a flowchart on the storage control apparatus 100 side, and an operation command is sent to each storage apparatus (A to E) (200 to 204) when writing to the optical disk in each storage apparatus (A to E) (200 to 204). It is a flowchart of the process to issue.

  The user operates the keyboard which is the input unit 130 of the storage control device 100 in FIG. 1 so that, for example, the directory 1 in FIG. 3 is written on the optical disc from the data display shown in FIG. Assume that an operation is instructed. The display of FIG. 3 is a display that is processed so that it can be easily seen by the user. In fact, data that spans a plurality of storage devices is displayed virtually as if it were in one storage device. Actually, each file is stored in each storage device as shown in FIG. 4, such as data A of the recording unit of storage device A200, data B of storage device B201, and data C of storage device C202 of FIG. Are scattered in each storage device. The process of this embodiment is a process for efficiently writing these data to a recording medium such as an optical disk, and the data scattered in each storage device can be executed without being conscious of the user. There is. The storage apparatuses B to E (201 to 204) in FIG. 1 omit the description of the same configuration, and have the same configuration as the storage apparatus A200.

  When a user start command is input from the input unit 130 of the storage control device 100 (step 101: (S101)), the operation starts. When the operation is started (S101), first, the data processing unit 110 of the storage control device 100 grasps data designated by the user (S102). As shown in FIG. 2, FIG. 3, and FIG. 4, the data is grasped in advance by the data processing unit 110 and the data information of each storage device (A to E) (200 to 204) is stored in the database 140. Or collect data information of each storage device via a network connection. The database 140 has data management information for each storage, and each storage, data name, data amount, etc. can be grasped as shown in FIG. This data may be obtained when the network is connected, may be obtained when the storage is connected, or may be obtained via the network in advance.

  In this example, since directory 1 is designated, it can be seen from FIG. 3 that the files _XX1 to XX4 are targets, and from FIG. 4, the data amount of each data and the data of the total data amount 45G are subject to writing (S102). .

Next, processing storage apparatuses that perform distributed write processing are determined (S103).
FIG. 5 shows a flowchart of a detailed procedure for determining the processing storage apparatus. When the determination of the processing storage device is started (S201), first, the storage device to be processed is predicted. As shown in FIG. 6, the capacity of data that can be written in the storage device is accumulated in the order of the amount of processing target data, and a storage device that processes when the capacity of the processing target data is exceeded can be predicted. The prediction in the case of this example is that the amount of data that can be written in each storage device is, for example, a writable capacity of 25 G when writing to a BD (Blu-ray Disc) optical disc (capacity of 25 G). Since the device A200 has 25G and the storage device B201 has 25G, both of them exceed the capacity of the processing target data. For this reason, it can be predicted that the storage device to be processed writes to two BDs using the read / write units of the storage device A200 and the storage device B201. The recording medium of the optical disk having the writable capacity is designated by the recording medium by the user from the input unit 130 of the storage control device 100.

  Next, processing for actually determining a storage device will be described.

  A storage device containing the largest amount of data to be processed is selected, and first investigated (S203).

  This is because the method of writing data in the same storage apparatus can perform the writing process earliest at the time of data writing, which has the effect of increasing the processing speed. In the case of write processing in other storage devices, data must be transferred, and the processing operation will be slowed down by the load of this data transmission processing. I want to avoid writing in another storage device. In this way, the processing speed can be increased by determining the storage device to be processed from the storage devices in which the processing target data exists and the plurality of storage devices based on the data capacity. Alternatively, recording media can be saved by optimal data distribution.

  It is determined whether the optical disk drive of the storage apparatus that contains the most processing target data can be used (S204). If it cannot be used, it is excluded from the write processing storage apparatus to be considered (S210). This is because in the case of a disk drive failure or a storage device that does not hold the disk drive, write processing must be performed by the disk drive of another storage device. By including this process, there is an effect that even if a storage apparatus without a write process is connected among a plurality of storage apparatuses, the write process can be performed in another storage apparatus.

  If the read / write unit can be used, the current processing load of the storage device is determined (S205), and if the processing load is not below a certain value and the write processing is hindered, it is excluded from the write processing storage device to be considered ( S210). This is because, for example, if the target storage device is requested to operate by another storage control device connected to the network and there is a heavy load due to data reading or the like, it takes a long time to write the current request. This is because it is determined that it is faster to perform the write process with the disk drive of another storage apparatus. By selecting the storage device that executes processing by considering the current processing load of each storage, there is an effect that the writing process can be performed as fast as possible even when there is a processing load.

  If the processing load of the target storage device is below a certain value (S205), the target storage device is determined as the storage to be written (S206), and the target data in the storage device itself is first assigned as write data (S207). ). Subsequently, when write target data other than the storage apparatus itself is allocated, the data is allocated. Allocation of write data is performed in consideration of the capacity of the medium to be written and the expected number of media.

  The write data allocation method will be described with reference to specific examples in the case of FIGS. 3 and 4. First, when write allocation for own data is performed in the storage apparatus A200 with the largest amount of processing target data, a file of 25G of the writable capacity will be stored. 20G of _XX1 is allocated. Since 10G of file _XX2 is over, it cannot be assigned. Next, write allocation for other data is performed, but other data existing other than the storage device A200 and the storage device B201 that are predicting the storage to be processed in step (S202) are allocated. In this case, the file _XX4 in the storage device C202 is allocated because it can be allocated at 5G. This determines the allocation of data to be processed by the storage apparatus A200. If the flowchart of FIG. 5 is followed, the process of (S208) will be complete | finished and it will be judged whether there exists other object process data (S209). Since the allocation of the file _XX2 and the file _XX3 still remains, the storage apparatus A200 that has already been determined is excluded from consideration, and processing data allocation of the storage apparatus B201 that includes a large amount of target processing data is performed next (S203). (S204) and (S205) are processed as described above, but here it is determined that there is no problem in use, and storage device B201 is determined as a processing storage (S206), and data allocation is performed. The file _XX3 (10G) held by the storage apparatus B201 itself is allocated in the writable capacity (25G), and then the data file _XX2 (10G) for other data is also allocated for writing in the storage apparatus B201. The storage device A200 determines whether the file _XX1 and the file _XX4 are allocated, and the storage device B201 determines the allocation of the file _XX3 and the file _XX2, and all of the processing target data is allocated to the storage device to be processed. Since there is no other data to be processed (S209), the processing storage determination process is terminated.

  As described above, the processing storage apparatus of FIG. 2 is determined (S103). Next, the storage control device 100 performs processing to issue an instruction to perform distributed processing of data writing to each storage device (S104).

  The storage control device 100 issues a command to each storage device as shown in FIG. For example, in (1), the instruction destination is the storage device A200, the instruction is write processing, and the data to be written is file_XX1. Similarly, in (2), the command destination is the storage device A200, the command is data reception / write processing, the data transmission / reception partner (reception in this case) is the storage device C202, and the data reception / write data is the file _XX2. The command (3) is issued to the storage device C202 on the transmission side, the command destination is the storage device C202, the command is data transmission, the data transmission / reception partner (transmission in this case) is the storage device A200, and the data to be transmitted is a file It is _XX2. The commands (2) and (3) command the processing of sending the file _XX4 of the storage device C202 to the storage device A200 and writing to the recording medium by the storage device A200.

  Similarly, in (4), the storage device B201 writes its own file file _XX3, and in (5) and (6), the storage device A200 file _XX2 is sent to the storage device B201. The process of writing is instructed.

  As described above, the storage control device 100 according to the first embodiment sends a control command to each of the storage devices (A to E) (200 to 204) and performs control so as to execute a write operation in each storage device. Can do.

  Next, operation processing on the storage apparatus side will be described with reference to the flowcharts of FIGS.

  A command input from the storage control device 100 of FIG. 1 to the storage device A 200 via the network 300 is analyzed by the command analysis execution unit 211 of the data processing unit 210 of the storage device A 200 to control the operation. In FIG. 8, when the instruction analysis execution unit 211 of the data processing unit 210 of the storage device A200 receives an instruction (S301), the input instruction is first analyzed (S302). If the instruction type is data writing, the data processing unit 210 reads data from the recording unit 220 and writes data in the reading / writing unit 230 (S303). If the command type is data transmission, the data processing unit 210 reads the commanded data from the recording unit 220 and transmits the data to the storage device designated by the command (S304). If the command type is data reception / writing, the data processing unit 210 receives data from the command specified storage device (S305), and performs processing to write the received data in the read / write unit 230 (S303). The instruction analysis execution unit 211 of the data processing unit 210 of the storage apparatus A200 determines whether there is another instruction (S306), and if there is, performs the same processing as described above from the analysis of the instruction type. If there are no other instructions, execution is terminated.

  As a specific example, the instruction of the storage apparatus A200 as the instruction destination in FIG. 7 is input to the storage apparatus A200. In accordance with this command, the storage device A200 reads the file _XX1 held by the storage device A200 from the recording unit 220 and writes it to the read / write unit 230 with the command (1). Also, the data received from the storage device C202 via the network is written into the read / write unit 230 by the command (2). Also, with the command (6), the file _XX2 held by the storage apparatus A200 is read from the recording unit 220 and data is transmitted to the storage apparatus B201. Similarly, in the storage device B201, the file _XX3 held is written by the read / write unit 230 (4), and the file _XX2 that is data from the storage device A200 is received via the network and is written by the read / write unit 230 (5). . In the storage apparatus C202, an operation of transmitting data to the storage apparatus A200 via the network is performed (3).

  In this way, each of the storage apparatuses (A to E) (200 to 204) performs data transmission and reception, and writing processing to a recording medium such as an optical disk, in accordance with instructions from the storage control apparatus 100. It becomes possible to do.

  As described above, by operating the storage control device 100 and the storage devices (A to E) (200 to 204), an efficient write operation of data scattered in each storage can be realized, and recording processing is performed. Can be speeded up. Alternatively, the recording medium can be saved. Alternatively, user convenience can be improved.

  In the second embodiment, the storage control terminal and each storage device are connected via a network. The data in each storage device is compressed by the compression processing unit in each storage device, and the storage device This is an embodiment in the case where a writing / storing process is performed on a recording medium by a read / write unit.

  FIG. 9 is a diagram showing the configuration of the second embodiment of the present invention, in which the storage control device 100 and a plurality of storage devices (A to E) (200 to 204) are connected via the network 300, and The place where data communication is possible is the same as in the first embodiment. The configuration of the storage control device 100 is the same as that of the first embodiment. The difference is that the data processing unit 210 on the storage device (A to E) (200 to 204) side includes a compression processing unit 212 and an expansion processing unit 213.

  In the first embodiment, the data scattered in each storage is simply written to the recording medium. In the second embodiment, the data scattered in each storage is efficiently compressed and written to the recording medium. .

The second embodiment will be described in more detail with reference to FIGS.
First, processing on the storage control apparatus 100 side will be described mainly with reference to FIGS. FIG. 10 is a flowchart of a process of issuing an operation command to each of the storage apparatuses (A to E) (200 to 204) when compressing and writing to a recording medium on the storage control apparatus 100 side.

  The grasping of the designated data (S402) from the start of the command operation (S401) in the process flowchart of FIG. 10 is the same as (S101) to (S102) in the process flowchart of FIG. In the processing storage apparatus determination process (S403), since the compression processing is performed in the second embodiment, for example, it is assumed that the data can be compressed to 80% by compressing the data. In this case, since the total 30G of the file _XX1 and the file _XX2 in FIG. 4 is 24G in the compression prediction, both are data allocations that can be compressed and written by the storage apparatus A200. The remaining files _XX3 and _XX4 are assigned to be written by the storage apparatus B201. Next, an instruction is issued to each storage device (S404). As the issued command, for example, a compression command is issued to each storage device as shown in (1) to (3) and (5) of FIG. 11 (S404). After issuing the command, each storage device performs compression, and the compression result is received (S405). If the data can be compressed and compressed to a capacity capable of writing data, it is determined that the result is OK (S406), data is collected in the storage to be written as shown in (4) and (6) of FIG. A data write command is issued as in 7) and (8) (S407), and the command operation is terminated (S408). If the compression result is NG (S406), the prediction of data compression is corrected based on the compression result, and the processing storage apparatus determination processing (S403) is performed again. As described above, there is an effect that the processing can be surely executed by changing the storage device to be processed after judging the result after the data processing and re-execution. Since data is distributed and processed to increase the speed, even when the process is re-executed, the process can be performed at a higher speed than when the process is re-executed by the conventional method.

  The instruction operation is performed as described above.

  In the example of this description, the data in each storage is compressed as it is in each storage device having the data and then moved to the storage to be written and written. Another method may be used in which data of each storage is collected in a storage to be written and then compressed and written. The former method is advantageous in terms of processing speed because it performs compression processing in each storage and performs compression distribution processing and transmission / reception data compression because the compression efficiency is low. The latter method collects the data before compression and processes it in a batch, so the number of transmitted / received data is large and the advantage of distributed processing is reduced due to data concentration, so the processing speed is inferior. Since compression is possible, it has the effect of being advantageous in terms of capacity reduction and recording medium saving.

As described above, the storage control device 100 according to the second embodiment sends a control command to each of the storage devices (A to E) (200 to 204) and performs control so as to execute the compression / write operation in each storage device. can do.
Next, the operation processing on the storage device side in the second embodiment will be described with reference to the flowcharts of FIGS. For example, when the storage apparatus A200 receives an instruction from the storage control apparatus 100 (S501), the instruction analysis execution unit 211 of the data processing unit 210 first determines the type of instruction (S502). If the instruction type is data compression, data compression of the designated data is performed (S503), the compressed data is temporarily stored in the recording unit 220 (S504), and the compression result is notified to the storage controller 100 (S505). If the instruction type is data reception, data is received from the designated storage device and held (S506). If the command type is data transmission, the data is transmitted to the designated storage device (S506). When the type of instruction is data writing, the read / write unit 230 writes the compressed data or received and held data to the recording medium (S508). Processing is performed according to the command of the storage control device 100. If it is determined that there is no other command (S509), the processing is terminated (S510).

  As a specific example, data compression is performed in each storage device by the instructions (1) to (3) and (5) in FIG. 11, and data movement between the storages is performed by the instructions (4) and (6). The data is moved to the storage device to be written, and the process of writing to the recording medium is performed by the commands (7) and (8).

  In the configuration of the second embodiment, the decompression processing unit 213 is provided in the storage apparatus A200 for decompressing the compressed data, but this need not be present. In this case, the part that performs the decompression process may be on the storage control apparatus 100 side, or may be in another apparatus.

  As described above, by operating the storage control device 100 and the storage devices (A to E) (200 to 204), it is possible to realize an efficient compression / writing operation of data scattered in each storage. Further, there is an effect that the compression processing can be surely executed by changing the storage device to be processed from the result after the data processing and re-executing. Alternatively, it is possible to increase the processing speed by collecting and writing data after compression processing in each storage device. Alternatively, data is collected and then compressed and written by the storage device to increase the data compression efficiency and save the recording medium.

  In the third embodiment, the storage control terminal and each storage device are connected via a network, and each data stored in each storage device is encrypted by an encryption processing unit provided in each storage device. (A to E) (200 to 204) is an embodiment in the case where the writing and storing process is performed on the recording medium by the read / write unit.

  FIG. 13 is a diagram showing the configuration of the third embodiment of the present invention, in which the storage control device 100 and a plurality of storage devices (A to E) (200 to 204) are connected via the network 300. The place where data communication is possible is the same as in the first and second embodiments. The configuration of the storage control device 100 is the same as that of the first embodiment. The difference is that the data processing unit 210 on each storage device (A to E) (200 to 204) side includes an encryption processing unit 214 and a decryption processing unit 215.

  In the third embodiment, the basic operation is performed in the same manner as in the second embodiment, so that it is possible to realize efficient encryption and writing operations of data scattered in each storage device. Further, there is an effect that the encryption process can be surely executed by changing the storage device to be processed from the result after the data processing and re-executing. Alternatively, it is possible to increase the processing speed by collecting and writing data after encryption processing in each storage device.

  In the fourth embodiment, a storage control terminal and each storage device are connected via a network, and each storage device is converted by converting data in each storage device by a data conversion processing unit in each storage device. This is an embodiment in the case where the writing / storing process is performed on the recording medium by the reading / writing unit.

  FIG. 14 is a diagram showing the configuration of the fourth embodiment of the present invention, in which the storage control device 100 and a plurality of storage devices (A to E) (200 to 204) are connected via the network 300. The place where data communication is possible is the same as in the first to third embodiments. The configuration of the storage control device 100 is the same as that of the first embodiment. The difference is that a data conversion processing unit 216 is provided in the data processing unit 210 on each storage device (A to E) (200 to 204) side.

  In the fourth embodiment, the basic operation is performed in the same manner as in the second and third embodiments, so that it is possible to efficiently convert data scattered in each storage and write the data on a recording medium. is there. In addition, there is an effect that the data conversion process can be surely executed by changing the storage apparatus to be processed from the result after the data processing and re-executing. Alternatively, it is possible to speed up processing by collecting and writing data after data conversion processing in each storage device. Specific examples of data conversion include video and audio data format conversion and pixel processing such as still image enlargement / reduction.

  In this embodiment, the recording medium to be written is assumed to be an optical disk medium. However, it is of course possible to use a tape medium or a memory medium. In addition, it can be considered that the recording capacity of the HDD or the like is considered as the remaining capacity of the HDD.

  As described above, the amount of data stored in a plurality of storage devices is grasped, and the storage data at the time of data recording processing is distributed to each storage device and distributed, so that the recording processing when saving to the recording medium in the storage system can be performed. The speed can be increased. Alternatively, the recording medium can be saved. Alternatively, user convenience can be improved.

  In the fifth embodiment, the storage control terminal and each storage device are connected via a network, and the data in one storage device is divided by the dividing unit in the storage device, and the read / write unit of each storage device This is an embodiment in the case of performing a writing and saving process on a recording medium.

  FIG. 15 is a diagram showing the configuration of the fifth embodiment of the present invention. The storage control device 100 and a plurality of storage devices (A to E) (200 to 204) are connected via a network 300, and are mutually connected. The place where data communication is possible is the same as in the first to fourth embodiments. The configuration of the storage control device 100 is the same as that of the first embodiment. The difference is that the data processing unit 210 on each storage device (A to E) (200 to 204) side includes a dividing unit 217 for dividing data and a combining unit 218 for combining data.

  In the fifth embodiment, a process of writing data A recorded in the recording unit 220 of the storage apparatus 100 to a recording medium in parallel with the read / write units 230 of the plurality of storage apparatuses (A to E) (200 to 204) is performed. Thus, an example is described in which processing can be executed at a higher speed than writing by only the read / write unit 230 of one storage apparatus A200.

  The storage device E204 is another form of the storage device A200. As shown in the figure, as the storage device, a plurality of drives for the optical disk can be prepared as in the read / write units 1 and 2 (231, 232). Furthermore, a plurality of optical discs can be handled by one drive like the read / write unit 3 (233).

First, a process for recording data will be described.
In accordance with a command from the storage control device 100, the storage device A 200 divides the data A recorded in the recording unit 220 and to be recorded on the recording medium by the dividing unit 217. At this time, the number of data A to be divided is determined according to the number of storage apparatuses that can execute the write processing connected to the network detected by the storage control apparatus 100. Also, the data A is divided so that the size is equally divided. The storage apparatus A200 transmits the divided data to the other storage control apparatuses (B to E) (201 to 204) via the network 300.

  In response to a command from the storage control device 100, each of the storage devices (B to E) (201 to 204) receives the divided data transmitted from the storage device A 200, and writes the data to the recording medium by the read / write unit 230, respectively. .

  The storage control device 100 holds information on data recorded on a recording medium in the read / write unit 230 of each storage device (A to E) (200 to 204) in the database 140.

  Examples of information stored in the database 140 include ID, file name, number of divisions, recorded storage device, recording medium ID, address, data size, and division order.

  ID is information for identifying data. The file name is the name of the data A file. The number of divisions is the number divided by the storage apparatus A200. The recorded storage device is information for identifying the storage device (A to E) (200 to 204) in which the data is written. The recording medium ID is information for identifying the recording medium in which the data is written. The address is address information when the data is written on the recording medium. The data size is the data size when the data is written on the recording medium. The division order indicates the order in which the data recorded on the recording medium is divided from the original data. In order to write data in parallel, there are a plurality of information of the recorded storage devices (A to E) (200 to 204) for the ID. The recording medium ID, address, data size, and division order are the same, and there is the same number of information.

  The storage devices that can be divided and connected to the network 300 that are detected by the storage control device 100 are not necessarily all the storage devices that are connected to the network 300. For example, when the storage apparatus B 201 is executing another instruction and cannot accept the instruction, the storage apparatus B other than the storage apparatus B may be used to perform parallel write processing of divided data.

  Next, processing for reading data will be described.

  The storage control device 100 searches the database 140 for data to be read, and acquires a storage device that records a recording medium on which data divided from an ID and a file name is recorded.

  Then, the storage control device 100 issues an instruction to transmit data to a certain storage device to each storage device from the obtained information. The storage device that has received this command reads the data size specified from the address specified by the command to the recording medium in the read / write unit 230 and transmits the data to the specified storage device.

  One storage device receives a command from the storage control device to combine the data transmitted from each storage device. In accordance with the command, the storage device combines the data received from each storage device in order in the specified order by the combining unit 218 of the data processing unit 210 and records the data in the recording unit 220.

  As described above, the data recorded in the recording unit of the storage device is written into the recording medium in parallel with the reading / writing units of the plurality of storage devices, so that the data can be read only by the reading / writing unit of one storage device. Processing can be executed faster than writing. Alternatively, processing can be executed at a higher speed than reading data with only the read / write unit of one storage device. Alternatively, the data written to the recording medium by the read / write unit is meaningless by itself, and therefore cannot be read even if the recording medium is illegally taken out, so that information security can be improved. . It is possible to save the recording medium in a distributed manner. Alternatively, user convenience can be improved.

  Next, FIG. 16 will be described. FIG. 16 is a diagram showing a basic configuration of the fifth embodiment of the present invention. A network 1600 includes a data storage device 1601 such as an HDD having a function of storing data, and a data storage device 1601 such as an optical disk. A drive device (1602, 1603) of a recording medium having a slower transfer speed is connected.

  Data stored in the data storage device 1601 is divided and written in a distributed parallel manner on the optical disk loaded in the drive device (1602, 1602), thereby transferring the data at a higher speed than the data transfer to one drive device. Can do.

  A device 1604 capable of handling a plurality of optical disks may be connected to the network 1600. In this case, by performing distributed parallel writing on a plurality of optical disks in one apparatus, the data can be transferred at higher speed than the data transfer to one optical disk.

  In addition, the Example demonstrated above can also be paraphrased as follows. That is, a recording system for controlling a recording medium connected via a network, the first recording medium connected to the network, and the second connected to the network and having a transfer speed slower than that of the first recording medium. A controller for controlling the recording medium, the first recording medium, and the second recording medium, and when the controller records the data recorded on the first recording medium on the second recording medium, the controller The data is divided and recorded on a plurality of second recording media. By setting it as such a system, it becomes a system which can suppress making a user feel the slow transfer speed of a 2nd recording medium. An example of the second recording medium is an optical disk. In addition, when the data recorded on the first recording medium is recorded on the second recording medium, the controller may divide this data and record it simultaneously on a plurality of second recording media. Good. Further, the first recording medium and the plurality of second recording media may be stored in one storage device.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. In addition, a part of the configuration of a certain embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of a certain embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  Each of the above-described configurations, functions, processing units, processing means, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit. Each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor. Information such as programs, tables, and files for realizing each function can be stored in a recording device such as a memory, a hard disk, an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, or a DVD.

  Further, the control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. Actually, it may be considered that almost all the components are connected to each other.

100 storage control device 110 data processing unit 111 processing data distribution unit 112 command issuing unit 120 display unit 130 input unit 140 database 200 storage device A
201 Storage device B
202 Storage device C
203 Storage device D
204 Storage device E
210 Data processing unit 211 Instruction analysis execution unit 212 Compression processing unit 213 Decompression processing unit 214 Encryption processing unit 215 Decoding processing unit 216 Data conversion processing unit 217 Dividing unit 218 Combining unit 220 Recording unit 230 Reading / writing unit 300 Network

Claims (8)

A recording system for controlling a recording medium connected via a network,
A first recording medium connected to the network;
A second recording medium connected to a network and having a lower transfer speed than the first recording medium;
A controller for controlling the first recording medium and the second recording medium;
When the data recorded on the first recording medium is recorded on the second recording medium, the controller divides the data and records the data on a plurality of the second recording media.
Recording system. The recording system according to claim 1,
The second recording medium is an optical disc;
Recording system. The recording system according to claim 2,
When the data recorded on the first recording medium is recorded on the second recording medium, the controller divides the data and simultaneously records the data on a plurality of the second recording media.
Recording system. The recording system according to claim 2,
The first recording medium and the plurality of second recording media are stored in one storage device,
Recording system. A storage system comprising a storage control device and a plurality of storage devices connected via a network,
The storage control device
A data processing unit for processing data;
An instruction issuing unit for issuing processing instructions to each storage device;
A display for giving information to the user;
An input unit for inputting a command from a user;
A database that holds information on multiple connected storage devices;
With
The storage device
A data processing unit for processing data;
A dividing unit for performing a process of dividing data;
A combining unit that performs processing for combining data; and
A recording unit for storing data;
A read / write unit for writing data to a recording medium;
An instruction analysis execution unit that analyzes and executes an instruction from the storage control device;
With
The dividing unit of the storage device 1 is
In accordance with a command from the storage control device, the processing target data recorded in the recording unit of the storage device 1 is divided, and the divided data is transmitted to a plurality of storage devices,
The read / write unit of the storage device that has received the divided data,
A storage system for recording the data on a recording medium. The storage system according to claim 5,
The storage device
The read / write unit reads data from the recording medium, transmits the data to the storage device 1 instructed by the storage control device,
The storage device 1
Receive data from multiple storage devices
The coupling unit of the storage device 1 is
A storage system that combines received data according to an instruction of the storage control device. The storage system according to claim 5,
The storage control device
A storage system, wherein information of divided data recorded on a recording medium by each storage device is recorded and managed in the database. The storage system according to claim 5,
The command issuing unit of the storage control system is
A storage system that issues a command to execute recording of divided data to a part or all of a plurality of storage devices connected to a network.

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