JP2001243124A - Method to calculate cost and compensation, and to apply insurance policy - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method that can compensate reasonably a loss without burdening users with any cost when the loss occurs by minimizing the data loss even if the data is lost. SOLUTION: The method of calculating costs and compensations is to create backup data copies of the computer system data by each period and to store the backup data copies. The method provides if the computer system becomes at least partially malfunctioned or damaged, it is authorized what time the system has become partially stopped (steps 501 and 502) and the lost data volume (step 503) caused by the stop and the authorized time when the malfunction occurs. The method calculates recovery costs to restore the lost data and the compensation costs (step 504 to 510) based upon the recognized lost data volume.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to compensation for data corruption in a storage device on a computer or a network.

[0002]

2. Description of the Related Art In recent years, due to the explosive spread of computers, computers have been used everywhere as well as in performing business in companies and the like. With the widespread use of computers, there are many cases in which the computer does not break down and its data is destroyed due to causes on the user side, such as operation errors and careless handling. In addition, a computer may be destroyed due to a power failure due to a lightning strike, or a fire, an earthquake, or a flood.

As described above, since computers are used in every stage of corporate and individual activities, their failures and destruction of stored data have a great effect on the above activities and cause considerable damage. Cause. Therefore, it is recommended that users regularly back up data. Further, a method has been proposed in which, when a computer breaks down or its data is destroyed for a certain reason, a certain amount of money is paid to compensate for the resulting damage.

[0004]

However, performing a backup on the part of the user means that the user's activities are limited during the backup. Frequent backups reduce damage due to failures and data destruction, while increasing the burden on the user.

In addition, there has been a problem that the amount of data destroyed by a computer failure or data destruction varies greatly depending on the user, and it is difficult to evaluate the resulting damage. That is, accounting / financial data, customer data, and the like are accumulated daily in real time. On the other hand, data created by a creator of CG (Computer Graphics) or game software, for example, is completed by delivery and is not of a nature to be stored. Therefore, it was very difficult to evaluate the damages due to differences in the qualities of these data. SUMMARY OF THE INVENTION It is an object of the present invention to provide a method capable of minimizing data loss without imposing a burden on a user and capable of appropriately compensating for the loss.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for backing up data of a computer system at predetermined time intervals and storing the backed up data, and the failure or destruction of at least a part of the computer system. Certifying when at least a portion of the function has ceased, said stored data;
Certifying the amount of data lost due to the suspension of the function based on the suspension of the function, and calculating a data recovery cost for restoring the data based on the certified data amount And a cost calculation method.

In the present invention, a regular backup and backup data are stored, and when a computer system fails or is destroyed, it exists during the period from the latest backup to the time of the failure or destruction. The amount of data that is likely to be recognized is recognized, and the cost for restoring (or recreating) the data is calculated. Therefore, the data can be recovered to some extent immediately by the latest backup. In addition, the calculated cost for data recovery can be used as a basis for compensation for the business owner of the computer system that has lost the data.

Another object of the present invention is a compensation calculation method using the above-mentioned cost calculation method, wherein a system suspension period, which is a period from the suspension of the function to the recovery of the function, if necessary, And / or calculating a data recovery period which is a period from the recovery of the function to the recovery of lost data, and, if necessary, the system suspension period or the system suspension period and the data Calculating the amount of damage suffered by the failure or destruction during the period based on the restoration period;
Deciding a compensation cost based on the data restoration cost or the data restoration cost and the amount of damage.
According to the present invention, the compensation cost can be determined based on only the data recovery cost or the data recovery cost and the damage amount. Therefore, regular backups can minimize the loss of data while recovering (or recreating) data that has not been backed up and that has been lost due to computer system failure or destruction. )) And the amount of damage suffered by the computer system operator due to the failure or destruction of the computer system, and based on these costs,
It is also possible to determine the insurance money to be paid to the operator of the computer system.

In a preferred embodiment of the invention,
Further, during the data recovery period, calculating a cost necessary for continuing the activity, the data recovery cost, or the data recovery cost and damage amount,
The compensation cost is determined by adding the cost for continuing the activity. According to this embodiment, the computer system operator calculates the cost required to continue activities such as business, and determines the compensation cost in addition to the restoration cost and the damage amount, so that a more realistic cost is determined. It is possible to determine insurance money.

[0010] In a further preferred embodiment of the present invention, the computer system is further stored in a first type, in which the data is accumulated in the system, until a specific time. The second type is such a usage mode, and the third type is a usage mode in which communication records are mainly stored as data.
Classifying the amount of lost data according to the classified type,
And it is configured to calculate the data recovery cost or the data recovery cost and the damage. According to this embodiment, it is possible to calculate a more realistic amount of money in consideration of the usage form of the computer system, and it is possible to take a compensation form that meets the needs of the business operator.

[0011] In a further preferred embodiment of the present invention, when the computer system falls under the first type, at least a plurality of backed-up data stored at different times may be used for a predetermined period of time. Calculating a data storage amount, based on a period from the latest backup time to when the function is stopped and a data storage amount per the predetermined period, the data amount of data lost due to the stop of the function. Is configured to certify. That is, in the first type, it is considered that data is gradually accumulated, and the amount of lost data is recognized in consideration of the accumulated amount of the data. For example, the accumulation of this data may be linear or may be in accordance with a function such that the accumulation amount increases rapidly toward the end of the month.

[0012] In another preferred embodiment of the present invention, when the computer system falls under the second type, it would have been originally obtained during the system suspension period and the data recovery period. The method includes the step of determining the amount of profit as the amount of damage. That is, in the second type, it is considered that data itself created on a computer system, such as computer graphics and software, has commercial value. Therefore, the cost corresponding to the commodity value lost due to the disappearance is calculated as the damage amount. The second type includes a step of calculating a data amount of the created data, which is a work amount per a predetermined period, and a period from the latest backup time to when the function is stopped, It may be configured to recognize the data amount of data lost due to the suspension of the function based on the data amount per predetermined period.

On the other hand, in another preferred embodiment of the present invention, when the computer system falls under the third type, at least the amount of profit that would have been originally obtained during the system suspension period. Is provided as a step of determining the amount of damage. That is, in the third type, it is considered that the communication itself has a commercial value. Therefore, the cost corresponding to the commercial value lost due to the suspension of the system is calculated as the damage amount. With respect to the third type, the amount of damage may be determined in consideration of the operation rate of the computer system during the system suspension period. Further, the third type includes a step of calculating a communication amount per a predetermined period, wherein a period from the latest backup time to a time when the function is stopped and a data amount per the predetermined period are set. Based on this, the data amount of the data lost due to the suspension of the function may be recognized.

Further, an object of the present invention is an insurance management method using the above-mentioned compensation calculation method, wherein a step of determining a contract amount and, if necessary, a deductible amount in an insurance contract, Performing a data backup; calculating a necessary cost and compensation when at least a part of the computer system is broken or destroyed; and a contract amount and a necessary cost based on the calculated cost. In this case, a step of determining an insurance amount to be finally paid in consideration of the deductible amount is provided.

[0015]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram schematically illustrating a communication system according to an embodiment of the present invention. As shown in FIG. 1, in the present embodiment, the user computers 12-1 and 12-
.., 12-n are connected to a backup company system 16 via a communication line 14. In the user-side computer 12, operations such as accounting and customer management, production of software and computer graphics,
Alternatively, various processes such as connection between a network and another computer are executed.

FIG. 2 shows the backup business system 16
3 is a block diagram showing an outline of FIG. As shown in FIG. 2, the backup company system 16 includes a communication interface (I / F) 22, a data processing unit 24 for executing various processes, a backup data storage 26 for storing backup data, and an input device. 28 and a display device 30. The data processing unit 24 executes the backup process in response to the elapse of the predetermined period, and
A backup processing unit 32 that stores the backed-up data file in a large-capacity portable storage medium such as a ROM, a DAT, or a magneto-optical disk, and a performance data calculation unit 34 that calculates various data indicating the performance in the user computer 12. The data group calculated by the performance data calculation unit 34 is stored in the performance database (DB) 36 for each user-side computer, and the data stored in the performance DB 36 is referred to, and the estimated value such as the data amount is calculated. It has a data estimating unit 38 to be calculated, and a cost calculating unit 40 for calculating a necessary cost based on the estimated value calculated by the data estimating unit 38 and the data stored in the performance DB 36.

In this embodiment, the backup company system stores the backup data from the user side system in a portable storage medium such as a CD-ROM at predetermined intervals, and stores the data offline. On the other hand, predetermined data is prepared according to the operation mode of the user side system, and if the user side system goes down for various reasons, various costs for the damage are calculated. . In the present embodiment, three types of “operation type”, “storage type”, “complete type”, and “network type” are provided, and the user side system is classified into any of these.

The "storage type" means data such as accounting data such as cash receipt / delivery, customer management data, product ordering, shipping, receipt, and other transaction-related data stored in the system. Therefore, the computer system used mainly for core business is "storage type"
In many cases. The “complete type” corresponds to software such as a program and a computer system for creating computer graphics. Software and computer graphics data are stored up to a predetermined delivery date in the "complete type", but once delivered, the stored data is no longer needed afterwards. . "Network type"
Corresponds mainly to a communication server such as an Internet provider. Generally, in computer systems belonging to the “network type”, communication logs and records of orders and settlements in electronic commerce are mainly stored. However, compared with the “storage type”, the amount of data to be stored may be relatively small. In a simple communication server, only a communication log may be stored.

Therefore, in the present embodiment, prior to executing various processes including the backup process, when the system on the user side is registered,
It is determined whether the operation mode belongs to “storage type”, “complete type” or “network type”. First, an outline of the operation of the backup provider system when the user side system belongs to the “storage type” will be described with reference to FIG. In FIG. 3, regular backup is performed in a certain user system (for example, the user system 12-2). On the other hand, when the user system is destroyed, damage at that time is calculated. ing.

As shown in FIG. 3, in the backup company system 16, the backup processing section 32 is started up at regular intervals (for example, every one month) and gives a predetermined instruction to the communication I / F 22. . Communication I / F22
Is transmitted to the user-side system 12 through the communication line 14,
Request transmission of backup data (step 30)
1). In response to this, the user side system 12 executes a backup to create backup data, transmits this to the backup operator system 16 via the communication line 14, and transmits this to the backup operator system 16
When the communication I / F 22 receives the backup data (Yes in Step 302), the communication I / F 22 gives the received backup data to the backup processing unit 32. The backup processing unit 32 converts the received backup data into C
Recording on a portable storage medium such as a D-ROM (Step 3
03). The portable recording medium containing the backup file created in this manner is taken out by the operator and brought into, for example, the backup data storage 26 which has been subjected to the fireproof and moisture-proof processing, and Stored at 26. In this way, the backup of the user-side systems 12-1, 12-2,... Is executed at predetermined intervals (for example, every one month).

The backup company system 16 calculates various data relating to the user side system separately from the above-mentioned regular work or upon receiving backup data. More specifically, as shown in FIG. 3 (b), the operator took out from the backup data storage,
The backup processing unit 3 stores the CD-ROM containing the backup files (for example, the latest one and the one-month-old one) of the user system 12 at the adjacent time.
When the backup file is loaded in the CD-ROM drive 2, the backup file is read and provided to the performance data calculation unit 32 (step 311). The performance data calculation unit 32
The data amount of each of these backup files is calculated, and the difference between the newer and older data amounts is calculated (step 312). By dividing this by the period, it is possible to calculate the data amount (unit time accumulation amount data) per unit time (for example, one day). It should be noted that the difference between receiving the backup data is the same as in step 31 above.
1 and step 312, since the latest backup file is stored in the backup processing unit 32, the CD-ROM storing the previous backup file is stored in the backup data storage 2
6 and read into the backup processing unit 32. The unit time accumulation amount data obtained in this way is associated with the user side system, and the result D
It is stored in B36.

The performance data calculation unit 34 also associates the data indicating the personnel cost per unit time in the user system 12 with a performance DB in association with the user system.
36 (step 313). This may be provided by the user-side system 12 giving information or by an operator operating the input device 28 based on pre-registered items. Further, the performance data calculation unit calculates the data 1 based on the unit time accumulation amount data and the data indicating the labor cost per unit time (unit time labor cost data).
The data of the labor cost per byte (the labor cost data per byte) is calculated, and is also stored in the performance DB 36 in association with the user side system (step 314).

In this way, the necessary data is stored in the results DB
36, and periodically receives backup data and creates and stores a backup file. By the way, in the user side system, the storage device breaks down due to a power failure or lightning strike, or the user side system itself is destroyed due to an earthquake, fire or flood, or the user side system is temporarily When the operation is stopped, based on various data stored in the performance DB 36 and data input by the operator operating the input device 28, the cost calculation unit 40 detects the damage suffered by the failure or destruction of the user-side system. calculate.

In this embodiment, as shown in FIG. 4A, data is restored in consideration of the time between the most recent backup and the time of failure or destruction, with respect to the "storage type" computer system. The cost for the operation and the cost for continuing the business activities in the meantime are calculated.
In the “accumulation type”, the cost required for business continuity and the cost required for data recovery during the period between the point of failure or destruction and the end of recovery work are considered. Note that in this specification, data recovery includes recreating part or all of data that has disappeared due to failure or destruction. Further, the failure or destruction of the computer system means that at least a part of the function of the data read / write device such as the hardware or software of the system and the hard disk device is lost, and the computer system itself stops,
Or, it means that the function is reduced.

FIG. 5 is a flowchart showing a process of calculating a cost for a "storage type" computer system. As shown in FIG. 5, first, the cost calculation unit 40 calculates a period (backup data non-existence period) between the time of the latest backup and the time when the computer is broken or destroyed (at the time of failure or destruction). (Step 501).
This can be obtained, for example, by comparing the date and time based on the log in the user computer 12 immediately before the failure or destruction with the backup date and time in the latest backup file stored in the backup storage 26. As a log, a log given to the user side system 12 via the communication line 14 may be used,
Alternatively, the operator may input the date and time when the log occurred by operating the input device 28 based on the log in the file remaining in the user-side system 12. In addition, the cost calculation unit 40 calculates a period between the time when the computer system is broken down or destroyed and the time when the OS or the backup file is reinstalled and the computer is restarted (at the time of restarting) (system complete suspension period). Calculate the period (data recovery period) between the time when the backup file or the like is reinstalled and the time when the computer system is restored to the same state as when the computer system was broken or destroyed (at the end of the recovery work) ( Step 502). For example,
The cost calculation unit 40 may determine that the point in time when the connection with the user-side system 12 is restarted is the point of restart. Alternatively, the restart point or the recovery work completion point may be specified according to the value input by operating the input device 28 by the operator. Further, when the computer system itself is destroyed due to a fire, a flood, or the like, the restart point is a point at which a new computer system is introduced and the latest backup file is installed again.

Next, the cost calculation unit 40 recognizes the amount of data considered to require data recovery (step 503). For this data amount calculation, the unit accumulation amount data stored in the result DB 36 is used. For example,
The cost calculation unit 40 can recognize the amount of data that needs to be restored based on the unit storage amount data and the backup data non-existence period. Depending on the operation mode of the computer system, data may be accumulated almost equally every day, or data may be accumulated in a concentrated manner on a predetermined date, such as the end of a month, such as payment. Therefore, as shown in FIG. 6, even those classified as "storage type", if evenly data is stored, by using a substantially linear f ₁ formula, (1) Data amount = f ₁ (backup nonexistence period / backup cycle) × backup nonexistence period × unit time accumulation amount data ≒ backup nonexistence period × unit time accumulation amount data (1) I just need. On the other hand,
If data is accumulated intensively on a predetermined date, equation (2) data amount = f ₂ (backup nonexistence period / backup cycle) × backup nonexistence period × unit time accumulation amount data ( The data amount may be calculated according to 2).

Next, the cost calculator 40 calculates the cost required for data recovery. Prior to this, based on information from the user of the user-side system 12, the number of operators (number of restart workers) required to reinstall the OS and the backup file during the complete system shutdown period, and , The number of people who needed to recreate lost data during the data recovery period (number of reworkers)
Is provided to the data processing 24 of the backup operator system 16 by operating the input device 28. Expense calculator 4
0 calculates the personnel cost (first recovery personnel cost) during the system complete suspension period based on the labor cost per unit time stored in the results DB 36, the system complete suspension period, and the number of restart workers. (Step 504).

The cost calculator 40 calculates the personnel cost required for recreating data during the data recovery period, based on the personnel cost per unit time, the data recovery period, and the number of recreating workers. (Second restoration labor cost) is calculated (step 505). Here, a determination is made as to the appropriateness of the labor cost required for recreating the data. More specifically, the data is re-created based on the amount of data that is determined to need to be restored in step 502 and the previously calculated (see step 314) personnel cost data per byte. The evaluation value of the labor cost for the job is calculated (step 506). This can be obtained from (data amount) × (labor cost per byte).

Next, it is determined whether or not the second restoration labor cost obtained in step 504 satisfies the following equation (3) (step 507). Evaluation value + α ≧ Second restoration labor cost (3) Here, α is an acceptable predetermined error. When it is determined that Expression (3) is satisfied (Yes in Step 507)
(Yes), the cost calculation unit 40 sets the sum of the first recovery labor cost and the second recovery labor cost as a candidate for the total of the labor costs required for data recovery (step 508). . Next, based on the predetermined reference amount (the reference amount of the outsourcing cost), the system complete suspension period, and the number of restart workers, a first comparative amount for the first restoration labor cost is calculated. Based on the reference amount, the data recovery period, and the number of re-creation workers, a second comparison price for the second recovery labor cost is calculated (step 509). Next, the cost calculation unit 40 compares the candidate obtained in step 506 with the total sum of the first comparison amount and the second comparison amount obtained in step 508, and It is determined as a labor cost for data recovery (step 510). If the result of the above step 507 is NO,
The sum of the first recovery labor cost and the evaluation value is determined as the labor cost for data recovery (step 511). In this way, it is possible to calculate the cost required for data recovery.

In addition, during the period from the point of failure or destruction to the end of recovery work, particularly during the data recovery period, the cost of continuing business is rented by computer system rental and the installation location of the user system itself. If it is not possible, rental expenses for the installation location are included. In this way, for a "storage-type" computer system, the cost required for data recovery and the cost for continuing business can be obtained.

Next, the operation of the backup operator system when the user system belongs to the "complete type" will be described. In the "complete type", as described above,
When the software and computer graphics are completed and delivered, these data need not be stored. Therefore, in the “complete type”, instead of calculating the amount of data accumulated per unit time, the amount of data and the loss due to the disappearance of the data are calculated using another index.

Even when the user system belongs to the "complete type", a regular backup is executed as shown in FIG. Further, the backup operator system 16 periodically requests the user-side system 12 to transmit the amount of data created by the system 12, and transfers the data amount (work amount) to the backup operator system. The 16 result data calculation units 34 are used in the result DB 36
It is preferable that the information is stored in association with the user system. For example, every predetermined period (for example, several days), the amount of programs and graphic data created by using the user side system 12 is:
As shown in FIG. 7A, the information is stored in association with the corresponding period. Alternatively, the operator may operate the input device 28 based on information from the user to input the data amount and the like. As described above, the data amount (the amount of work) is acquired for each predetermined period, and, for example, statistical processing is added to the data amount, so that the data amount per unit time in the user system 12 can be obtained. Becomes The data amount (work amount) per unit time is shown in FIG.
In the same way as described above, it may be obtained when the backup data is received. FIG. 8 is a flowchart showing the condition calculation process executed when the backup data is received for the “complete type”. Here, based on the data amount stored in the result DB 36 and stored in the result DB 36, data indicating the amount of data generated per unit time (unit time work amount data) is obtained (step 81).
1) Then, similarly to FIG. 3B, the unit time labor cost data and the labor cost data per byte are calculated (steps 812 and 813). Further, the performance data calculation unit 34 obtains a loss per unit time suffered by the stoppage of the computer system, and stores this in the performance DB 36 in association with the user-side system (step 814).
This can be calculated based on an index (for example, operating profit or the like) given by the user operating the input device, based on the items registered in advance. For example, by dividing operating profit by operating time, profit per hour can be obtained, and this profit can be considered as loss.

When obtaining the data indicating the data amount (the amount of work) per unit time, the data is given in advance from the user side system 12 or the operator inputs the data to the input device 2.
In the period from the order receiving date to the delivery date, which is input by operating the data No. 8, the data stored in the performance DB 36 is taken into consideration in consideration of the data creation index (refer to FIG. 7B) indicating the creation ratio of software and graphic data. The calculation may be performed based on the calculation. As for the “complete type” computer system, the processing shown in FIG. 9 is executed when a failure or destruction occurs in the system (user side system). In addition, regarding the failure or destruction of the "complete" computer system,
As shown in FIG. 4B, in addition to the cost required for business continuity and the cost required for data recovery in the period between the time of failure / destruction and the time of completion of recovery work, the cost of computer failure or destruction is increased. Consideration is also given to compensation for profits (loss profits) that could not be obtained even though they could originally be obtained.

The process shown in FIG. 9 is substantially the same as the process of FIG. 5 except for a part, and therefore, the points different from the process of FIG. 5 will be mainly described. The cost calculation unit 40 calculates a backup data non-existence period that is a period between the latest backup time and the failure / destruction time (step 90).
1) Then, a system complete suspension period and a data recovery period are calculated (step 902). These processes correspond to those of steps 501 and 502 in FIG. 5, respectively. Thereafter, the cost calculation unit 40 recognizes the lost data amount (work amount) during the backup data non-existence period (step 903). This can be calculated based on the data calculated in step 811 of FIG. 8 and stored in the result DB 36 and the backup data non-existence period. Further, the cost calculation unit 40 calculates the costs required for data recovery (first recovery labor cost and second recovery labor cost) (steps 904 and 905). These processes respectively correspond to the processes of steps 504 and 505 in FIG. Further, the cost calculation unit first executes step 90
Based on the data amount (work amount) considered to be lost and recognized in step 2 and the previously calculated (see step 813) labor cost data per byte, the evaluation value of the labor cost for recreating the data is calculated. It is calculated (step 906). This evaluation value can be obtained from (data amount (work amount) × (personnel cost per byte)).

Next, it is determined whether the second labor cost obtained in step 904 satisfies the following equation (4) (step 907). Evaluation value + β ≧ Second restoration labor cost (4) Here, β is an acceptable predetermined error. When it is determined that Expression (3) is satisfied (Yes in step 907)
(Yes), the cost calculation unit 40 sets the sum of the first recovery labor cost and the second recovery labor cost as a candidate for the total labor cost required for data recovery (step 908). . Less than,
The processing of steps 908 to 910 and step 911 corresponds to steps 509 to 510 and step 51 of FIG.
1 respectively.

After the calculation of the costs related to the personnel costs is completed, the cost calculation unit 40 estimates the loss profit (step 912). This lost profit, for example,
(Loss per unit time (see step 814 in FIG. 8))
× (system complete suspension period + data recovery period). Next, using the predetermined upper limit, “min (estimated loss profit, upper limit)” is determined as the loss to be compensated (step 913). As described above, in the present embodiment, in the event of a failure or destruction of a "complete" computer system, the costs required for business continuity, the costs required for data recovery, and the compensation for loss and profit are calculated. Can be determined as the amount to be paid to the user of the computer system.

Next, the operation of the backup operator system when the user system belongs to the "network type" will be described. In "network type",
While the failure or destruction of a computer system can render itself inoperable, the amount of data stored is not very large. Therefore, "network type"
Then, the processing relating to the “complete type” is slightly changed to calculate necessary costs and the like.

Even if the user system belongs to the "network type", a regular backup is performed as shown in FIG. As described above, in the “accumulation type”, the amount of data in two backup files is calculated to obtain the amount of data accumulated per unit time (see steps 311 and 312 in FIG. 3B). ).
On the other hand, in the “network type”, the amount of data created per unit time is obtained (see step 811 in FIG. 8). On the other hand, in the “network type”, it is desirable to calculate the amount of data to be stored, the amount of data to be created, or both. this is,
In consideration of the operation mode of the “network type” user-side system, it is determined in advance which data amount should be calculated. In any case, at the time of backup, a personnel cost per unit time and a personnel cost per byte are calculated based on the calculated data amount and stored in the results DB 36 (FIG. 3B). Step 31 of
3, 314, see steps 812, 813 in FIG. 8). Further, in the case of the “network type”, similarly to the “complete type”, a loss per unit time incurred due to the stoppage of the computer system is obtained and stored in the result DB 36 (see step 814 in FIG. 8). ). In the case of the “network type” (particularly, in the case of a computer system of a communication carrier), access to the computer system differs every time. For example, in the case of a server of an Internet connection company, the number of accesses during the day is significantly different from the number of accesses at night (for example, after 11:00 pm). FIG.
FIG. 4 is a diagram showing the ratio of the number of accesses by time, where the number of accesses per unit time is 1. Therefore, in the case of the “network type”, it is desirable to obtain such a ratio of the number of accesses and store the ratio in the result DB 36. This can be considered as the operating rate of the computer system, and can be used for calculating the amount of damage described later. The ratio of the number of accesses may be obtained by receiving a communication log from the user side system 12 and based on the communication log, or by inputting data by operating the input device 28 by an operator.

In a "network type" computer system, even if a failure or destruction occurs in the system (user side system), processing substantially equivalent to that in FIG. 9 is executed. Here, the processing in step 903 is slightly
It may be different from the one related to "complete type". That is, when only the amount of data to be accumulated is calculated at the time of backup, processing corresponding to step 503 is executed instead of step 903. On the other hand, if only the amount of data to be created has been calculated, processing corresponding to step 903 is executed. Further, when both data amounts are calculated, the processing of step 503 and the processing of step 903 are executed, and finally, the sum of both is recognized as the data amount.

The following procedure is also added to the damage amount in step 912. That is, the damage amount is determined based on the loss per unit time, the system complete suspension period, and the ratio of the number of accesses (operating rate) shown in FIG. In a "network type" computer system, if the system itself is restarted, communication services can be resumed, although there are some problems. Accordingly, as the period during which the damage has occurred, the complete suspension period of the system is considered to be the period in which the damage has occurred due to the suspension of the system. Therefore, the data recovery period is excluded for estimating the damage amount. Of course, if the communication service business may be hindered during the data recovery period, a certain constant γ (≦ 1) is taken into consideration and (the system complete suspension period +
(γ × data recovery period) may be used as a period serving as a basis for estimating the amount of damage. The reason why the access ratio is taken into consideration is that the amount of damage that may have occurred varies depending on the operation rate during the period when the system is suspended.

After calculating the amount of damage in this way,
As in step 913, the amount of damage is compared with the upper limit, and the smaller amount is determined as the amount of damage to be compensated (see step 914). In the present embodiment, in the event of a failure or destruction of a “network-type” computer system, the cost required for business continuity, the cost required for data recovery, and the compensation for loss and profit are calculated, and these are calculated. Can be determined as the amount to be paid to the user side. Further, since the loss is estimated in consideration of the occupancy rate, it is possible to determine a more appropriate compensation loss amount.

As described above in detail, according to the present invention, it is possible to reduce the amount of data to be deleted by performing regular backup. That is, when a failure or destruction occurs in the computer system, the data to be recreated by reloading the data of the latest backup file into the computer system is as follows:
The backup can be from the latest backup to the time when the failure or destruction of the computer system occurs.

Further, by classifying the computer system into “storage type”, “complete type” and “network type”, it is possible to appropriately calculate the restoration cost and the amount of damage according to the use mode of the computer system. Becomes Thereby, for example, in insurance relating to a computer, it is possible to more appropriately set an insurance money to be paid for a failure or destruction of a computer system.

Further, according to the present invention, since the data amount of the lost data is calculated by various methods according to the use mode, the data recovery cost can be more appropriately calculated. The operation of insurance using the cost and compensation calculation method according to the present invention will be described below. Basically, in insurance, the total amount of expenses actually incurred for the indemnification target (collateralized) described in the insurance contract is calculated, and the expenses are paid within the upper limit. In some cases, a deductible amount is set. For example, consider a case in which the contract amount is 3 million yen and the deductible amount is 200,000 yen, while the total actual cost is 3.5 million yen. In this case, since the amount obtained by subtracting the deductible amount from the total cost is 3.3 million yen, 3 million yen is ultimately paid as insurance money. On the other hand, in the case of the above contract amount, if the total actual cost is 1.2 million yen, an amount obtained by subtracting the deductible amount from 1.2 million yen is paid.

Therefore, an insurance management method using the above-described method of calculating the cost and the compensation will be described with reference to FIG.
For example, when an insurance contract with a certain contract amount is concluded, regular data backup is performed. Here, when a failure or destruction occurs in the computer system, the recovery cost of data lost due to the failure or destruction, the business continuation cost, and in addition, the compensation amount of the loss profit according to the present embodiment. It is calculated by the method. Further, in practice, for example, the exemption cost may be subtracted from the restoration cost, or the exemption cost may be subtracted from the business continuation cost. Further, the calculated loss profit may be multiplied by a coefficient δ (for example, 50%, 60%, or the like). In this way, the insurance money is paid to the contractor after the total amount is determined. As described above, when the present invention is applied to insurance, it is possible to grasp the situation of an accident such as destruction or breakdown that has occurred in a computer system, and quickly calculate the cost of the accident.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, which are also included in the scope of the present invention. Needless to say, this is done. For example, regarding the “network type” of the above embodiment, when calculating the amount of damage during the complete suspension of the system, the failure or destruction is partial, and the operating rate of the communication business or the like is “0”.
If it is not “%”, it goes without saying that the damage amount may be calculated in consideration of the occupancy rate.

Further, in the above embodiment, when calculating the data amount of lost data, various methods (for example, see FIGS. 6 and 7) are used, and when the amount of damage is calculated. Also, a function according to time (for example, see FIG. 10) is used, but in the present invention, a method other than these methods or functions may be used. Further, in particular, in the accumulation type, in the embodiment, the unit time accumulation data is calculated by using a difference between two latest backup files. However, the present invention is not limited to this.
It goes without saying that the calculation may be performed using a statistical method.

Further, in the above-described embodiment, the data recovery cost and the cost required for business continuation, and in some cases, in addition to these, the compensation for the damage is considered to be the amount to be paid to the computer system operator. Of course, an upper limit may be set for this, and if the upper limit is exceeded, the upper limit may be determined as the amount to be paid. Further, in this specification, means does not necessarily mean physical means, but also includes a case where the function of each means is realized by software. Further, the function of one unit may be realized by two or more physical units, or the function of two or more units may be realized by one physical unit.

[0049]

According to the present invention, it is possible to provide a method capable of minimizing data loss without imposing a burden on a user and capable of appropriately compensating for the loss even when the loss occurs. It becomes possible.

[Brief description of the drawings]

FIG. 1 is a block diagram schematically showing a communication system according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating an outline of a backup company system according to the embodiment;

FIG. 3 is a flowchart illustrating a backup process and the like of a backup provider system when the user side system belongs to “accumulation type” in the present embodiment.

FIG. 4 is a diagram for explaining costs and losses to be considered in the present embodiment.

FIG. 5 is a flowchart illustrating a cost calculation process for a “storage-type” computer system.

FIG. 6 is a diagram illustrating an example of a weighting function for calculating a data amount of lost data in the present embodiment.

FIG. 7 shows a “complete type” in the present embodiment.
FIG. 10 is a diagram showing an example of elements to be considered in calculating a data amount (work amount) regarding the computer system.

FIG. 8 shows a “complete type” in the present embodiment.
9 is a flowchart showing a condition calculation process executed when backup data is received.

FIG. 9 is a flowchart illustrating a cost calculation process for a “complete” computer system.

FIG. 10 is a diagram illustrating a ratio of the number of accesses according to time when the number of accesses per unit time is set to 1;

FIG. 11 is a diagram for explaining an insurance management method using the method according to the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Communication system 12 User side computer 14 Communication line 16 Backup company system 22 Communication I / F 24 Data processing part 26 Backup data storage 28 Input device 30 Display device 32 Backup processing part 34 Result data calculation part 36 Result DB 38 Data estimation Department 40 Cost calculation department

Claims (11)

[Claims] Backing up data of a computer system at predetermined intervals and storing the backed up data; when at least a part of a function of the computer system is stopped due to a failure or destruction of at least a part of the computer system. Certifying the stored data, and certifying the data amount of the data lost due to the suspension of the function based on when the function is stopped; and Calculating a data recovery cost for recovering the data. 2. A compensation calculation method using the cost calculation method according to claim 1, wherein, if necessary, a system suspension period which is a period from the suspension of the function until the function is restored, and / Or
Calculating a data recovery period, which is a period from when the function is recovered to when the lost data is recovered, and, if necessary, based on the system suspension period or the system suspension period and the data recovery period. Calculating the amount of damage suffered by the failure or destruction during the period; and determining the compensation cost based on the data recovery cost or the data recovery cost and the damage amount. Compensation calculation method. 3. The method according to claim 1, further comprising: calculating a cost required for continuing the activity during the data recovery period, wherein the data recovery cost or the data recovery cost and the damage amount include The compensation calculation method according to claim 2, wherein the compensation cost is determined by adding a cost for the compensation. 4. A computer system according to claim 1, wherein the first type is a mode in which data is accumulated in the system, and the second type is a mode in which data is stored until a specific time. And classifying into a third type, which is a usage mode in which communication records are mainly stored as data, certifying a data amount of lost data according to the classified type, and 4. The compensation calculation method according to claim 2, wherein the data recovery cost or the data recovery cost and the damage are calculated. 5. A step of calculating a data storage amount per a predetermined period according to at least a plurality of backed-up data stored at different times when the computer system corresponds to the first type. It is configured to recognize the data amount of data lost due to the suspension of the function based on the period from the latest backup time to when the function is stopped and the amount of data accumulated per the predetermined period. 5. The method according to claim 4, wherein
The compensation calculation method described in 1. 6. When the computer system falls under the second type, a step of determining the amount of profit that would have been originally obtained during the system suspension period and the data recovery period as a damage amount. The compensation calculation method according to claim 4, further comprising: 7. When the computer system falls under the second type, the computer system further comprises a step of calculating a data amount of the created data, which is a work amount per predetermined period, and The system according to claim 1, wherein a data amount of data lost due to the stop of the function is recognized based on a period from when the function is stopped to the time when the function is stopped and a data amount per the predetermined period. 6
The compensation calculation method described in 1. 8. The method according to claim 1, further comprising, if the computer system falls under the third type, determining at least an amount of profit that would have been originally obtained during the system suspension period as a damage amount. The compensation calculation method according to claim 4, wherein: 9. The computer according to claim 3, wherein when the computer system falls under the third type, a damage amount is determined in consideration of an operation rate of the computer system during the system suspension period. 9. The compensation calculation method according to 8. 10. The computer according to claim 3, further comprising a step of calculating a communication amount per predetermined period when the computer falls under the third type, a period from the latest backup time to when the function is stopped, 9. The system according to claim 8, wherein a data amount of data lost due to the suspension of the function is recognized based on the data amount per predetermined period.
Or the compensation calculation method according to 9. 11. An insurance management method using the compensation calculation method according to claim 2, wherein a step of determining a contract amount and, if necessary, a deductible amount in an insurance contract; Performing a backup of the data, calculating necessary costs and compensation when at least a part of the computer system fails or destroyed, and a contract amount and a necessary amount based on the calculated costs. Determining the ultimate insurance amount to be paid in consideration of the deductible amount in such a case.