problem in writing file on application server in background

Hi,

I am trying to write a file on application server in background , Its working fine in Development and Quality.But the problem is when i am trying to write in PRD it is writing only the last page.

I  have used the following code

    OPEN DATASET LV_LOG_FILE_PATH  FOR APPENDING IN TEXT MODE ENCODING DEFAULT IGNORING CONVERSION ERRORS.

As its urgent, kindly reply

Thanks & Regards

Gouri