JPH06103144A - Information processing system - Google Patents

Abstract

PURPOSE:To automatically secure an area of a receiving side file at the time of executing a file transfer, in the information processing system for executing the file transfer between information processors connected by a communication circuit. CONSTITUTION:At the time of executing a file transfer, before transferring a file, a transmitting side file capacity calculating part 112 calculates the capacity of a transmitting side file 114. Based on its result, a receiving side capacity calculating part 122 calculates the capacity of a receiving side file 124, and outputs an area securing request to an area securing part 125. After the area securing part 125 secures an area of the receiving side file 124, the file transfer is executed. In such a way, in the file transfer processing, a work for generating or extending the receiving side file 124 in advance is omitted. Also, this system has an effect for preventing a suspension of the processing in the case that the capacity of the receiving side file is insufficient, and deterioration of the volume use efficiency in the case that the receiving side file capacity is too large.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing system in which information processing devices are connected by a communication line, and in particular,
The present invention relates to an information processing system that transfers files by a file transfer program that operates in each information processing device.

[0002]

2. Description of the Related Art FIG. 2 is a block diagram showing a conventional example.
In this information processing system, the transmitting side information processing device 21
And a receiving side information processing device 22 are connected by a communication line 23, the transmitting side information processing device 21 includes a file transfer program 211 and a file storage unit 213, and the receiving side information processing device 22 transfers files. Program 221
And a file storage unit 223.

Conventionally, the receiving side file 224 in the file transfer has to be created, and when the receiving side file does not exist, the file transfer program 2
11 and 221 have terminated abnormally. In addition, even if the reception side file 224 exists, the transmission side file 21
Even when the capacity is not sufficient to store 4, the file transfer programs 211 and 221 have also terminated abnormally.

Further, when the area of the receiving side file 224 is secured, the receiving side file 224 having a capacity sufficient for storing the file is prepared from the capacity of the transmitting side file 214, or when the file transfer is executed. It is necessary to specify the reserved capacity as the information for creating the file in the JCL and create the file on the receiving side.

[0005]

In the above conventional information processing system, prior to executing the file transfer, the capacity of the sending side file is calculated for creating the receiving side file and the receiving side file corresponding to the capacity is calculated. Reserved capacity must be calculated. If the size of the created file on the receiving side is not appropriate, the file on the receiving side overflows during the data transfer and the data transfer is interrupted, the capacity of the receiving file is expanded, and the data transfer is re-executed. Waste in terms of On the other hand, if the size is too large, there is a drawback that the efficiency of use of the file storage unit is reduced.

[0006]

SUMMARY OF THE INVENTION The present invention provides an information processing system for transferring files between information processing devices connected by a communication line by a file transfer program operating in each information processing device. A transmission side file capacity calculation unit that calculates a capacity, a reception side file capacity calculation unit that calculates a capacity of a file created on the reception side, and an area reservation unit that reserves an area of the reception side file. To do.

[0007]

The present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. In this embodiment, the transmission side information processing device 1
1 and the information processing device 12 on the receiving side are connected by a communication line 13, and the information processing device 11 on the transmitting side is provided with a file transfer program 111 and a file storage section 113 having a file 114 on the transmitting side. Processor 12
In addition, a file transfer program 121 and a file storage unit 123 having a reception side file 124 are provided. The receiving file 124 need not exist prior to file transfer.

Further, in this embodiment, a transmission side capacity calculation unit 112 for calculating the capacity of the transmission side file 114 is provided in the transmission side information processing apparatus 11. Further, the receiving side information processing apparatus 12 is provided with a receiving side capacity calculating section 122 for calculating the capacity of the receiving side file 124, and an area securing section 125 for ensuring the capacity of the receiving side file or expanding the capacity thereof.

When the file transfer process is started by the file transfer program 111 on the transmitting side information processing apparatus 11,
The transmission side file capacity calculation unit 112 calculates the capacity of the transmission side file 114 and requests the reception side information processing apparatus 12 to secure the capacity of the reception side file 124.

In response to the request, the information processing apparatus 12 on the receiving side calculates the capacity of the file 124 on the receiving side by the file size calculating section 122 on the receiving side.

The area reserving unit 125 uses the capacity calculated by the receiving side file capacity calculating unit 122 to store the file in the file storing unit 12.
The area of the receiving side file 124 is secured in 3. At this time, if the receiving side file 124 already exists,
If the capacity is not sufficient to store the sender file 114, the file is expanded to a size capable of storing the sender file 114.

When the area reservation of the receiving side file 124 is completed, the area reserving section 125 causes the information processing apparatus 11 via the file transfer program 121 of the receiving side information processing apparatus 12.
Request to start data transfer.

The file transfer program 111 of the information processing apparatus 11 starts file transfer with the file transfer program 121 of the information processing apparatus 12.

[0015]

As described above, according to the present invention, in the file transfer processing, the capacity of the sending side file is calculated prior to the data transfer, and the receiving side file having a sufficient capacity for storing the sending side file is secured. Alternatively, by expanding the file, the user himself / herself calculates the capacity of the sending side file and the reserved capacity of the receiving side file corresponding to the capacity, and saves the work of creating or expanding the receiving side file. In addition, it is possible to prevent the processing from being interrupted when the file capacity of the receiving side is insufficient and the volume usage efficiency from being lowered when the file capacity of the receiving side is too large.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram showing a conventional example.

[Explanation of symbols]

 11 transmitting side information processing apparatus 111 file transfer program 112 transmitting side file capacity calculating section 113 file storing section 114 transmitting side file 12 receiving side information processing apparatus 121 file transferring program 122 receiving side file capacity calculating section 123 file storing section 124 receiving side file 125 area securing unit 13 communication line

Claims (2)

[Claims] 1. A transmission side file capacity for calculating the size of a transmission side file in an information processing system for performing file transfer between information processing apparatuses connected by a communication line by a file transfer program operating in each information processing apparatus. An information processing system comprising: a calculation unit, a reception-side file capacity calculation unit that calculates a capacity of a file created on the reception side, and an area reservation unit that reserves an area of the reception-side file. 2. When the receiving side file already exists, the area securing unit compares the capacity of the sending side file with the capacity of the existing receiving side file, and determines the capacity of the receiving side file to be the sending side file. The information processing system according to claim 1, wherein the capacity of the receiving side file is expanded to a capacity capable of storing the transmitting side file when the capacity of the receiving side file is not sufficient.