TWI630496B - Data storage method and system thereof - Google Patents

Abstract

A data storage system includes a disk storage module, a tape storage module including a plurality of tapes, and a processing module. The disk storage module is configured to store a plurality of business data each containing a plurality of files, and tape number data, and store at least one comparison table corresponding to at least one previous period. The processing module calculates a tape area number corresponding to each file according to the data volume of each file, the capacity of each tape, and the tape number data, and stores each file in the tape storage module. The area of the tape area number, and storing a correspondence table corresponding to the file name of each file and its tape area number. When the processing module receives a return request, the processing module according to the return request And the comparison table returns the corresponding file.

Description

Data storage method and system thereof

The invention relates to a data storage method, in particular to a data storage method and a system thereof for long-term preservation of data.

In accordance with the relevant government regulations, the banking industry has a fairly long time to store important transaction data. Different from the general file backup and preservation methods, it must have a well-managed and rigorous audit mechanism to facilitate access to future internal units or external units. The need for long-term preservation of data in the past.

In the existing data storage method, when storing a plurality of business data corresponding to different service categories, for the convenience of storage, the business data is scattered and stored on different tapes at a plurality of locations in the tape library at a distance from each other. If you want to access the business data in the future, you must take out the different tapes by controlling the robot arm to different locations of the tape library to restore the business data. When the data is stored more scattered, the number of tapes retrieved will be retrieved. The more it is followed, the more time it will take to retrieve the tape. In addition, the recovery procedure must first query the tapes stored in the business data to be accessed. In this case, it is often inconvenient and time-consuming to manually enter the name of the file to be read by hand. Manually copying the business data stored on the tape requires automatic batch recovery, which increases the cost of manual processing and the time required to seriously affect data recovery.

Accordingly, it is an object of the present invention to provide a data storage method that can be quickly restored.

Therefore, the data saving method of the present invention is implemented by a data saving system, and the data saving system includes a plurality of business data related to a current business category and corresponding to different service categories, and includes a starting tape. Numbered tape number data, and storing at least one disk storage module corresponding to at least one previous period comparison table, a tape storage module including a plurality of tapes, and an electrical connection to the disk storage module and the The processing module of the tape storage module, each business data includes a plurality of files, each file has a different file content, and each of the corresponding tables corresponding to a previous period includes each file corresponding to the previous period. The correspondence between the file name and its tape area number, the data saving method includes the following steps:

(A) the processing module calculates a tape area corresponding to each file according to the data amount of each file stored in the business data of the disk storage module, the capacity of each tape, and the tape number data. Numbering;

(B) the processing module stores, according to the tape area number corresponding to each file in the service data, each file in the service data in the tape storage module, corresponding to the tape area number Area;

(C) the processing module stores a comparison table corresponding to the current period and including a correspondence between the file name of each file in the service data and one of the tape area numbers in the disk storage module;

(D) when the processing module receives a back-memory request including a query period and a query file name, the processing module obtains a comparison containing the same period of the query period according to the query period. a table, and comparing, according to the query file name and the obtained comparison table, a tape area number corresponding to the query file name; and

(E) The processing module restores the file corresponding to the tape area number from the tape storage module to the disk storage module according to the compared tape area number.

Another object of the present invention is to provide a data storage system that can be quickly restored.

Therefore, the data storage system of the present invention comprises a disk storage module, a tape storage module including a plurality of tapes, and a processing module electrically connecting the disk storage module and the tape storage module.

The disk storage module is configured to store a plurality of business data related to a current service category and corresponding to different service categories, and a tape number data including a starting tape number, and store at least one corresponding to at least one previous period. In the comparison table, each business data includes multiple files, each file has its own different file content, and each of the corresponding tables corresponding to a previous period contains the file name corresponding to each file of the previous period and its tape area. The correspondence of numbers.

The tape storage module is configured to store each of the business materials related to the current period, and store each of the plurality of business materials corresponding to each of the at least one previous period file.

The processing module is configured to calculate a tape area number corresponding to each file according to the data volume of each file stored in the service data of the disk storage module, the capacity of each tape, and the tape number data. And storing, according to the tape area number corresponding to each file stored in the service data of the disk storage module, each file in the service data in the tape storage module corresponds to An area of the tape area number, and storing a comparison table corresponding to the current period and including a correspondence between a file name of each file in the service data and one of the tape area numbers in the disk storage module, When the processing module receives a return request including a query period and a query file name, the processing module obtains a comparison table containing the same period of the query period according to the query period, and And comparing, by the query file name and the obtained comparison table, a tape area number corresponding to the query file name, the processing module is configured according to the compared tape area number from the tape storage module Corresponding to the stored files to the tape area number storage module disk.

The utility model has the advantages that: the processing module centrally stores the business data corresponding to different service categories in each period, instead of distributing the business data of different service categories in a plurality of locations at a distance from each other. Different tapes reduce the time it takes for the robot to access the tape. In addition, the processing module automatically obtains the tape area number corresponding to the query file name according to the memory return request, and automatically restores the file corresponding to the tape area number from the tape storage module to the disk. Storage modules reduce manual work and speed up recovery time.

Referring to FIG. 1, an embodiment of a data storage system of the present invention includes a disk storage module 11, a tape storage module 12, a communication module 13 connected to a communication network 100, and an electrical connection module. 11. The tape storage module 12 and the processing module 14 of the communication module 13.

The disk storage module 11 is configured to store a plurality of business data related to a current business category and corresponding to different service categories, such as deposits, loans, foreign exchange and credit cards, and includes a starting tape number. Tape number information. Each business profile contains multiple files, each with its own different file content. The disk storage module 11 further stores at least one comparison table corresponding to at least one previous period, and at least one data table corresponding to the at least one previous period. Each of the comparison tables corresponding to a previous period includes a correspondence between the file name corresponding to each file of the previous period and its tape area number. Each of the data tables corresponding to the previous period includes a correspondence corresponding to the file name of each file of the previous period and the business data to which it belongs, the size of the file, and the file is stored in the tape storage mode. A backup time for group 12. It is worth mentioning that, ideally, during each fixed time period, for example, on the 15th of each month, a plurality of salesmen who are responsible for a plurality of different service categories will use their business device 2 to generate relevant current period. The service data is transmitted to the processing module 14 for updating the business data previously stored in the disk storage module 11 (i.e., overwriting the service data in the current period). Related to the previous issue, such as the July business data), wherein each salesperson uses his business terminal device 2 to store a core system of multiple transaction materials related to multiple transactions of the bank. The transaction module (not shown) downloads the required transaction data to generate the business data related to the current period.

The tape storage module 12 is configured to store each of the business data related to the current period, and store each of the plurality of business materials corresponding to each of the at least one previous period a file. In this embodiment, the tape storage module 12 is implemented as an automated storage device including a virtual tape library and an automated tape library including a plurality of tapes. In addition, the business categories of these business data for each period are fixed. In the previously mentioned categories of deposits, loans, foreign exchange and credit cards, each period contains corresponding deposits. Business data, business data corresponding to lending, business data corresponding to foreign exchange, and business data corresponding to credit card. The number of files included in each business data may not be the same in the same period. For example, the business data corresponding to the deposits in the previous period, for example, contains a file related to foreign currency deposits. A file related to demand deposits and a file related to time deposits. And the business data corresponding to the deposit in the current period includes a file related to foreign currency deposits, a file related to demand deposits, and a file related to time deposits, including a related gold The file of the passbook. Therefore, the number of files included in the business data corresponding to the deposit class in the current period is 4, which is different from the number of files included in the business data corresponding to the deposit class in the previous period.

When the processing module 14 receives at least one service data from the at least one service device 2 via the communication module 13, the processing module 14 stores at least one of the previous storage devices in the disk storage module 11 and corresponds to The at least one previous business data of the business data is updated to the received at least one business data. For each business data currently stored in the disk storage module 11, the processing module 14 obtains the business data corresponding to the previous business data according to a data table corresponding to the previous period. The number of files included (ie, the number of files included in the business data corresponding to the previous business category and the same business category), and is currently stored in the disk storage module 11 The business data, the number of files included in the business data corresponding to the current period. The processing module 14 compares whether the number of files corresponding to the previous period of business data is equal to the number of files corresponding to the current period of business data. When the processing module 14 compares the number of files corresponding to the previous period of business data to a number of files corresponding to the current period of business data, the processing module 14 generates a file number abnormality indication output and The communication module 13 is transmitted to a service device 2 corresponding to the generation and transmission of the service data, wherein the processing module 14 compares the number of files corresponding to the previous period of business data to be smaller than the current service. When the number of files of the data is used, the abnormality indication output of the file number generated by the processing module 14 indicates that the number of files is abnormally increased. When the processing module 14 compares the number of files corresponding to the previous period of the business data, the number of files is greater than When the number of files of the current business data should be current, the abnormal number indication output of the file generated by the processing module 14 indicates that the number of files is abnormally reduced. When the processing module 14 compares the number of files corresponding to the previous period of business data to the number of files corresponding to the current period of business data, the processing module 14 generates a file number without abnormality indication output.

It is worth mentioning that the banking industry may provide different services according to the customer's needs. For example, the business data of the corresponding deposits mentioned above, in response to the customer's gold passbook demand, the banking industry has introduced a gold passbook service, so the current period The business data corresponding to the deposit class also contains the file related to the gold passbook. In addition to the increase in service items, it is also possible for the banking industry to reduce the number of service items. For example, the foreign currency deposit service will not be provided in the future. Therefore, the business data corresponding to the deposit category in the next period will no longer contain a foreign currency deposit. file. However, when the number of files of the previous business data is not equal to the number of files corresponding to the current business data, the reason may be that the salesperson adjusts the service items, or the salesperson may use the business. The end device 2 generates one file less when generating a plurality of files of the current period of business data. At this time, the processing module 14 of the data storage system of the present invention automatically compares the number of files of the previous period of business data with the number of files of the current period of business data, and when the processing module 14 compares When the number of files of the other business data in the previous period is not equal to the number of files corresponding to the current business data, the processing module 14 timely generates the abnormal number of the file output and transmits the file to the corresponding business device 2, In order to remind the salesman, and thus avoid the situation that the number of files is abnormal due to the negligence of the salesman. When the service device 2 receives the file number abnormality indication output, the service device 2 generates a first reply indicating the cause of the abnormality and transmits the result to the processing module 14 via an input operation of the corresponding salesperson. When the processing module 14 receives the first reply from the service device 2 via the communication module 13, the processing module 14 stores the first response to the disk storage module corresponding to the current period. Group 11.

For each file of each business data, the processing module 14 further obtains a backup time corresponding to the file of the previous period according to the data table corresponding to the previous period (ie, obtains Obtaining the backup time of the file in the previous period and the file name of the file, and obtaining the file corresponding to the current file according to the file currently stored in the disk storage module 11 Storage time. The processing module 14 further determines whether the backup time corresponding to the file of the previous period is later than the storage time of the file corresponding to the current period, when the processing module 14 determines that it corresponds to the previous period. When the backup time of the file is later than the storage time of the file corresponding to the current period, the processing module 14 generates a file overdue abnormality indication output and transmits to the corresponding generation and transmission of the file via the communication module 13. A business terminal device 2. When the processing module 14 determines that the backup time corresponding to the file of the previous period is not later than the storage time of the file corresponding to the current period, the processing module 14 generates a file period without an abnormality indication. Output. It is worth mentioning that if a salesperson accidentally forgets to generate the current business data, the business data stored in the disk storage module 11 is the business data of the previous period that has not been updated. The processing module 14 of the data saving system of the present invention determines whether the backup time corresponding to the file of the previous period is later than the storage time of the file corresponding to the current period, when the processing module 14 determines that the corresponding When the backup time of the file in the previous period is later than the storage time of the file corresponding to the current period, the processing module 14 timely generates the file overdue abnormality indication output and transmits the file to the corresponding service device 2 In order to remind the salesperson, and thus avoid the situation of overdue business information being overdue due to the negligence of the salesman. When the service device 2 receives the file overdue abnormality indication output, the service device 2 generates a second response indicating the cause of the abnormality via another input operation of the corresponding salesperson and transmits the result to the processing module 14 . When the processing module 14 receives the second reply from the service provider device 2 via the communication module 13, the processing module 14 stores the second response corresponding to the current period on the disk. The storage module 11 is provided. In addition, if the file to be overdue is determined to be included only in the current business data of the current period, it is not included in the business data of the previous period (ie, the service item corresponding to the file is The processing module 14 does not obtain the backup time of the file corresponding to the file of the previous period, and therefore, it is not necessary to determine whether the backup time corresponding to the file of the previous period is late. The storage time for the file corresponding to the current period.

The processing module 14 further calculates a tape area corresponding to each file according to the data amount of each file stored in the business data of the disk storage module 11, the capacity of each tape, and the tape number data. The number, and the number of tapes required for the business data, wherein the tape area numbers corresponding to the adjacent two files are continuous and uninterrupted. In this embodiment, the capacity of each tape is the same, and the processing module 14 can calculate each of the tapes according to the capacity of any tape, the amount of data of each file in the service data, and the tape number data. The processing module 14 also stores the number of the tapes in the disk storage module 11 for the tape area number corresponding to the file, and the number of the tapes, but is not limited thereto. The processing module 14 stores each file in the service data in the tape storage module according to the tape area number corresponding to each file stored in the service data of the disk storage module 11 12: an area corresponding to the tape area number, and storing a comparison table corresponding to the current period and including a correspondence between a file name of each file in the service data and one of the tape area numbers. Disk storage module 11. The processing module 14 further stores a correspondence between the file name of each file of the current period and the business data to which it belongs, the size of the file, and the file is stored in one of the tape storage modules 12 The data sheet of the backup time is updated, and the starting tape number in the tape number data is updated according to a last tape area number corresponding to the last file in the last data. In this embodiment, the processing module 14 updates the starting tape number in the tape number data with the last tape area number plus a unit number, such as the sum of 1.

When the processing module 14 receives a return request including a query period and a query file name, the processing module 14 obtains a comparison table containing the same period as the query period according to the query period. And comparing, according to the query file name and the obtained comparison table, a tape area number corresponding to the query file name, the processing module 14 is configured according to the compared tape area number from the tape storage module. 12 restores the file corresponding to the tape area number to the disk storage module 11. In this embodiment, the resuming request includes only one query period and one query file name. However, in other embodiments of the present invention, the resuming request may include multiple query periods and multiple query filenames. . It is worth mentioning that when the number of query periods and the number of query file names to be queried are large, the processing module 14 automatically obtains a tape area number corresponding to each query file name to be queried. Reducing the working time of manually typing the query file names into a corresponding tape area number, and further, the business data corresponding to different service categories in each period is continuously and collectively stored in multiple locations adjacent to each other. In the different tapes, due to the centralized storage of the business data, the files corresponding to the query file names that are to be queried may even be stored in the same volume. Therefore, the search and storage files have corresponding query file names. The time required for the tape of the file can also be reduced. Further, the processing module 14 automatically restores the tape corresponding to the tape from the tape storage module 12 according to the obtained plurality of tape area numbers. The file of the area number is transferred to the disk storage module 11, which can greatly reduce the copying of the file corresponding to the query file name from the tape being read by manual operation. Of operating time.

An embodiment of the data storage method of the present invention implemented by the data storage system will be described below with reference to the accompanying drawings. The embodiment includes a data storage program and a data recovery program.

Referring to Figures 1, 2 and 3, the data storage system implements a data storage program for storing the data of the present invention. The data storage program describes how to store the current business data in the tape storage module 11 and includes the following steps.

In step 301, when the processing module 14 receives the at least one business data via the communication module 13, the processing module 14 stores the at least one previously stored in the disk storage module 11 and corresponds to at least The previous business data of a business data is updated to the at least one business data received.

In step 302, for each business data currently stored in the disk storage module 11, the processing module 14 obtains the service data corresponding to the previous period according to the data table corresponding to the previous period. The number of the files included in the other business data, and based on the business data currently stored in the disk storage module 11, the number of files included in the business data corresponding to the current period is obtained.

In step 303, the processing module 14 compares whether the number of files corresponding to the previous period of business data and the number of files corresponding to the current period of business data are equal. When the processing module 14 compares the number of files corresponding to the previous period of business data to be equal to the number of files corresponding to the current period of business data, the process proceeds to step 304; otherwise, the process proceeds to step 306.

In step 304, the processing module 14 generates the file number abnormality indication output and transmits the same to the service device 2 corresponding to the generation and transmission of the service data via the communication module 13.

In step 305, when the processing module 14 receives the first reply from the service device 2 and indicates the cause of the abnormality via the communication module 13, the processing module 14 stores the corresponding current period. The first reply is to the disk storage module 11.

In step 306, for each file of each business data currently stored in the disk storage module 11, the processing module 14 obtains the file corresponding to the data table corresponding to the previous period. The backup time of the file of the previous period is obtained, and according to the file currently stored in the disk storage module 11, the storage time corresponding to the file of the current period is obtained.

In step 307, the processing module 14 determines whether the backup time corresponding to the file of the previous period is later than the storage time of the file corresponding to the current period. When it is determined that the backup time corresponding to the file of the previous period is later than the storage time of the file corresponding to the current period, the flow proceeds to step 308; otherwise, the flow proceeds to step 310.

In step 308, the processing module 14 generates the file overdue abnormality indication output and transmits it via the communication module 13 to the business side device 2 correspondingly generating and transmitting the file.

In step 309, when the processing module 14 receives the second reply from the service device 2 and indicates the cause of the abnormality via the communication module 13, the processing module 14 stores the corresponding current period. The second replies to the disk storage module 11.

In step 310, the processing module 14 calculates each file corresponding to the data amount of each file stored in the business data of the disk storage module 11, the capacity of each tape, and the tape number data. The tape area number.

In step 311, the processing module 14 stores each file in the service data in the tape storage module 12 according to the tape area number corresponding to each file in the service data. The area of the tape area number.

In step 312, the processing module 14 stores the comparison table corresponding to the current period and including the correspondence between the file name of each file in the service data and the tape area number in the disk storage mode. Group 11, and storing the corresponding name of the file name of each file of the current period and the business data to which it belongs, the size of the file, and the backup time of the file stored in the tape storage module 12 The data sheet, and the starting tape number in the tape number data is updated based on the last tape area number corresponding to the last file in the last data. In this embodiment, the processing module 14 updates the starting tape number in the tape number data with the last tape area number plus a unit number, such as the sum of 1.

Referring to Figures 1 and 4, the data storage system implements a data recovery procedure for implementing the data storage method of the present invention. The data recovery procedure describes how to retrieve the query period and the query file name to be retrieved to the disk storage module 11 and includes the following steps.

In step 313, when the processing module 14 receives the return request including the query period and the query file name, the processing module 14 obtains the same period corresponding to the query period according to the query period. The comparison table, and the tape area number corresponding to the query file name is compared according to the query file name and the obtained comparison table.

In step 314, the processing module 14 restores the file corresponding to the tape area number from the tape storage module 12 to the disk storage module 11 according to the compared tape area number.

In summary, the data storage method and system thereof of the present invention, by the processing module 14, centrally store the business data corresponding to different service categories in each period, instead of separately storing the business data of different service categories separately. Tapes that are far apart from each other in multiple locations can avoid having to take different tapes by controlling the robot arm to different positions of the automated tape library when accessing the business data in the future, thus consuming a large amount of reading time. . In addition, the processing module 14 automatically obtains the tape area number corresponding to the query file name according to the memory return request, and automatically restores the file corresponding to the tape area number from the tape storage module 12 to the file. The disk storage module 11 can reduce the number of files of the previous period of business data and the number of files of the current period of business data by the processing module 14 And determining whether the backup time of the file in the previous period is later than the storage time of the file in the current period to automatically supervise whether the business data generated by each salesperson using the business device 2 is abnormal. The situation is indeed true for the purpose of the present invention.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

11‧‧‧Disk storage module
12‧‧‧ Tape Storage Module
13‧‧‧Communication module
14‧‧‧Processing module
100‧‧‧Communication network
2‧‧‧Business equipment
301~314‧‧‧Steps

Other features and advantages of the present invention will be apparent from the embodiments of the present invention, wherein: FIG. 1 is a block diagram of an embodiment of the data storage system of the present invention; FIG. 2 and FIG. A data storage program in the embodiment of the data saving method; and FIG. 4 is a flowchart illustrating a data recovery procedure in the embodiment of the data saving method of the present invention.

Claims (10)

A data saving method is implemented by a data saving system, the data saving system includes a plurality of pieces of business data related to a current business category and corresponding to different service categories, and a tape including a starting tape number And storing at least one disk storage module corresponding to at least one previous period comparison table, a tape storage module including a plurality of tapes, and an electrical connection between the disk storage module and the tape storage module The processing module of the group, each business data comprises a plurality of files, each file has a different file content, and each of the corresponding tables corresponding to a previous period includes a file name corresponding to each file of the previous period and The data storage method includes the following steps: (A) the processing module according to the amount of data of each file stored in the business data of the disk storage module, and the capacity of each tape And the tape number data, calculating a tape area number corresponding to each file; (B) the processing module corresponding to each file in the service data The tape area number, each file in the service data is stored in an area of the tape storage module corresponding to the tape area number; (C) the processing module is stored corresponding to the current period, and includes a comparison table corresponding to one of the file names of the files in the business data and one of the tape area numbers is in the disk storage module; (D) when the processing module receives one including a query period and one When querying the file name for the return request, the processing module obtains a comparison table containing the same period of the query period according to the query period, and compares the query file name with the obtained comparison table. a tape area number corresponding to the query file name; and (E) the processing module restores the file corresponding to the tape area number from the tape storage module to the disk according to the compared tape area number Storage module. The method for saving data according to claim 1 further comprises, after step (A), a step (F), when the processing module receives at least one piece of business data, the processing module stores at least one of the previous The disk storage module and the previous business data corresponding to the at least one business data are updated to the received at least one business data. The data storage method of claim 1, the disk storage module further stores at least one data table corresponding to the at least one previous period, and each of the data tables corresponding to the previous period includes a corresponding previous period. Before the step (A), the correspondence between the file name of each file and the business data to which it belongs includes the following steps: (G) for each business data currently stored in the disk storage module, The processing module obtains, according to a data sheet corresponding to the previous period, the number of files included in the service data corresponding to the business data of the previous period, and based on the service data currently stored in the disk storage module. , obtaining the number of files included in the current business data of the current period; and (H) comparing the number of files corresponding to the previous business data and the number of files corresponding to the current business data Whether it is equal; and (I) when the processing module compares the number of files corresponding to the previous period of business data to a number of files corresponding to the current period of business data, the processing module generates an exception. Indicates the output. The data storage method of claim 1, the disk storage module further stores at least one data table corresponding to the at least one previous period, and each of the data tables corresponding to the previous period includes a corresponding previous period. The file name of each file and a backup time stored in the tape storage module, before step (A), further includes the following steps: (J) for each pen currently stored in the disk storage module For each file of the business data, the processing module obtains a backup time corresponding to the file of the previous period according to a data table corresponding to the previous period, and stores the file in the storage mode according to the current storage mode. The file of the group obtains a storage time corresponding to the file of the current period; (K) the processing module determines whether the backup time corresponding to the file of the previous period is later than the current period corresponding to the current period The storage time of the file; and (L) the processing module generates an abnormal indication when it is determined that the backup time corresponding to the file of the previous period is later than the storage time of the file corresponding to the current period Output. The data saving method according to claim 1, further comprising a step (M) after the step (A), the processing module updating the last tape area number corresponding to the last file in the last data. The starting tape number in the tape numbering data. A data storage system comprising: a disk storage module for storing a plurality of business data related to a current business category and corresponding to different service categories, and a tape number data including a starting tape number, and storing at least Corresponding to at least one previous period comparison table, each business data includes a plurality of files, each file having a different file content, and each of the comparison tables corresponding to a previous period includes each of the previous periods Corresponding relationship between the file name of a file and its tape area number; a tape storage module comprising a plurality of tapes and for storing each file in the business data related to the current period, and storing the at least Each of the plurality of business data corresponding to each of the previous periods; and a processing module electrically connected to the disk storage module and the tape storage module and configured to be stored on the disk Calculating the data volume of each file in the business data of the storage module, the capacity of each tape, and the tape number data, and calculating a tape area number corresponding to each file And storing, according to the tape area number corresponding to each file stored in the service data of the disk storage module, each file in the service data in the tape storage module corresponds to the An area of the tape area number, and storing a comparison table corresponding to the current period and including a correspondence between the file name of each file in the service data and one of the tape area numbers in the disk storage module When the processing module receives a return request including a query period and a query file name, the processing module obtains a comparison table containing the same period of the query period according to the query period, and according to the comparison table, The query file name and the obtained comparison table compare a tape area number corresponding to the query file name, and the processing module returns from the tape storage module according to the compared tape area number. The file of the tape area number is to the disk storage module. The data storage system of claim 6, wherein, when the processing module receives at least one piece of business data, the processing module stores at least one of the at least one previously stored in the disk storage module and corresponds to at least one business data. The previous business profile is updated to the received at least one business profile. The data storage system of claim 6, wherein the disk storage module further stores at least one data table corresponding to the at least one previous period, and each of the data tables corresponding to the previous period includes corresponding For each correspondence between the file name of each file in the previous period and its associated business data, for each business data currently stored in the disk storage module, the processing module is further based on one corresponding to the previous period. The data sheet obtains the number of files included in the business data corresponding to the business data of the previous period, and obtains the business data corresponding to the current period based on the business data currently stored in the disk storage module. The number of files included, the processing module compares the number of files corresponding to the previous business data with the number of files corresponding to the current business data, when the processing module compares the previous one The processing module generates an abnormal indication output when the number of files of the business data of the period is not equal to the number of files corresponding to the current business data. The data storage system of claim 6, wherein the disk storage module further stores at least one data table corresponding to the at least one previous period, and each of the data tables corresponding to the previous period includes corresponding The file name of each file in the previous period and a backup time stored in the tape storage module, the processing module is further configured for each file of each business data currently stored in the disk storage module. Corresponding to a data sheet of the previous period, obtaining a backup time corresponding to the file of the previous period, and obtaining the corresponding current period according to the file currently stored in the disk storage module. a processing time of the file, the processing module further determines whether the backup time corresponding to the file of the previous period is later than the storage time of the file corresponding to the current period, when the processing module determines that the corresponding The processing module generates an abnormality indication output when the backup time of the file in the previous period is later than the storage time of the file corresponding to the current period. The data saving system of claim 6, wherein the processing module further updates the starting tape number in the tape number data according to a last tape area number corresponding to the last file in the last data.