For the COPY command (&ACSENVIR='ALLOC') and the RESTORE command (&ACSENVIR='RECOVER'), the storage class ACS routine is executed first. If the storage class is not null, the management class ACS routine and then the storage group ACS routine are executed.

An application program may set its own ACS environment for the logical data set COPY and RESTORE commands. The ACS environment may be set when the application is presented with the EIREC22 data area in Exit 22. The specification of an ACS environment will override the default &ACSENVIR values for the logical data set COPY and RESTORE commands. The read only variables available will be no different than the ones available for the COPY command (&ACSENVIR='ALLOC') and the RESTORE command (&ACSENVIR='RECOVER').

For CONVERTV SMS TEST and CONVERTV SMS, (&ACSENVIR='CONVERT'), the storage class ACS routine is executed first. If the storage class ACS routine determines that the storage class is not null, the management class ACS routine is executed.