In addition to influencing a data set’s storage class when you restore it, you can also give ACS input for assigning or overriding the data set’s management class. By specifying MGMTCLAS, you can pass a management class name to ACS and, as with STORCLAS, ACS can ignore it, assign it to the data set, or use it in combination with other input variables to determine the data set’s management class. By specifying NULLMGMTCLAS, you can pass a null management class to ACS, which may or may not assign a management class.

An example of the RESTORE command with the MGMTCLAS keyword is:

RESTORE  -
        INDDNAME(TAPE)  -
        DATASET(INCLUDE(USER12.**))  -
        MGMTCLAS(MCNAME1)

As with STORCLAS, RACF® checks if the RESOWNER field of a given data set is authorized to define the data set with the given MGMTCLAS. Ensure that the RESOWNER field of the data set has the correct authority to use the indicated management class.

Just as you can with STORCLAS, you can use MGMTCLAS with BYPASSACS to ensure that the data set is assigned the management class you specify. For instance:

RESTORE  -
        INDDNAME(TAPE)  -
        DATASET(INCLUDE(USER12.**))  -
        MGMTCLAS(MCNAME1)  -
        BYPASSACS(**)

You should ensure that the management class you specify with MGMTCLAS is valid, or you will get an error. Remember that BYPASSACS skips both the STORCLAS and MGMTCLAS ACS routines.

To limit the use of BYPASSACS, an installation can set up a RACF class profile.

When you influence or assign the management class of a data set, you also need to be careful that the data set resides in a storage group capable of providing for the management class attributes associated with the management class you specify. For instance, if a data set has a management class that makes it eligible for migration, it needs to reside in a storage group on which DFSMShsm does migration. Otherwise, the data set will never migrate. For this reason, you might have to change the storage class along with the management class to ensure that the data set resides on volumes that can accommodate its management class.

However, if you are having to continually override your installation’s ACS routines, you should refer to your storage administrator about changes to the ACS routines that would make it possible to let SMS do its job.