LOG_BUFFER_SIZE

This sets the maximum buffer size, in bytes, for the transaction log file. Acceptable values are from 0 to 32767. LOG_BUFFER_SIZE is examined before each write to the log file. Its default value is 512. If LOG_BUFFER_SIZE is set to 0, then writes to the log file are synchronous (unbuffered). This value can also be set inside a COBOL program with the SET ENVIRONMENT verb.