SMSACSDC—provide SMS data class constructs

The SMSACSDC function can assign a DFSMS data set to any data class.

A data class defines a list of data set attributes, such as record format, record length, retention period, primary and secondary space allocation quantities, and so on. The data class allows organization and allocation information to be provided by default for all data sets that are assigned to that class. This process simplifies and standardizes data set allocation. Data classes can be assigned explicitly in JCL or implicitly through an ACS routine.

Related topic

Using-Allocation-functions

SMSACSDC can assign a data class to a data set that does not have a data class or override a data class assignment that was already made by JCL or an ACS routine.

Tip

DFDSS (ADRDSSU) DEFRAG creates a control data set, ‘SYS1.DFDSS.DFRAG...’, on all volumes being defragmented. This data set is not SMS-manageable. The step should be run including a // PROIGN DD DUMMY, or the data set should be excluded in the FLST for all ACS-related functions.

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