SMSDCFL in macro DSN6SPRM

Specifies a DFSMS data class for table spaces. Before you set this parameter, you need to define the data classes for your table space data sets. You also need to code SMS automatic class selection (ACS) routines to assign indexes to one SMS storage class and table spaces to a different SMS storage class.

SMSDCFL is one to eight characters long. When you use DFSMS and DB2® storage groups, you can use SMSDCFL to assign table spaces to different DFSMS data classes. If you assign a value to SMSDCFL, DB2 specifies that value when it uses Access Method Services to define a data set for a table space. If the value of SMSDCFL is one or more blanks, DB2 does not specify a data class when it creates data sets for table spaces.

The default value of SMSDCFL is a blank.

This subsystem parameter is deprecated in DB2 10.