Data processing method for use with a coupling facility

A data processing method for use with a coupling facility, said method comprising the steps of:

• keeping a correspondence relationship between each of a plurality of computers respectively connected to said coupling facility and a character code of an address expression used to locate text data to be accessed by one of said plurality of computers;
• storing, in response to reception of text data from a first computer selected from said plurality of computers, a format of a address expression of the first computer and the text data in a shared file of said coupling facility;
• notifying, from said coupling facility, the transmission of text data to computers using the shared file;
• comparing, in response to a request from a second computer selected from said plurality of computers notified of the transmission of the text data, a character code of an address expression of text data to be accessed by the second computer with a character code of the address expression used to locate text data kept by the coupling facility in accordance with the correspondence relationship;
• converting, when the character codes are different from each other as a result of the comparison, the character code of the address expression of the shared file into data of the character code of the address expression of the second computer and transmitting the text data with the converted character code of the address expression to the second computer;
• and
• sending, when the character codes are equal to each other as a result of the comparison, the text data stored in the shared file to the second computer.