The Period Start parameter is a value from zero to ten that defines the starting point of the compression process. It is used in combination with the Time Unit parameter.
The Time Unit parameter is used in combination with the Period Start parameter to define the starting point of compression. And, it is used in combination with the Period Length parameter to define the quantity of data that will be compressed.
The Period Length parameter is a value from one to ten that defines the starting point of the compression process. It is used in combination with the Time Unit parameter.