This property defines the maximum number of operations per I/O Driver on E3Run's memory before sending them to an I/O Server. Possible values for this property range from 1 (one) to 100000. The value 0 (zero) disables grouping operations for this I/O Driver. Default value of this property is -1 (minus one), that is, grouping is defined in the Maximum Number of Operations per Group option of the Asynchronous Operation Grouping group of the Properties tab of Domain configuration.