The ASYNCHRONOUS specifier indicates whether asynchronous I/O is allowed for a unit. It takes the following form:
ASYNCHRONOUS = asyn
Is a scalar expression of type default character that evaluates to one of the following values:
'YES' |
Indicates that asynchronous I/O is allowed for a unit. |
'NO' |
Indicates that asynchronous I/O is not allowed for a unit. |
The default is 'NO'.