DB2 V4.1 integrates with the Data Facility Storage Management Subsystem (DFSMS), allowing DFSMS concurrent copy to be invoked from the DB2 COPY utility.

       COPY TABLESPACE CRDBCARD.CRTSCARD 
                 COPYDDN(SYSCP001) 
                 CONCURRENT
                 SHRLEVEL CHANGE

DFSMS copies are recorded in SYSIBM.SYSCOPY and function like standard DB2 image copies in recoveries. An important restriction is that INCREMENTAL image copies may not be taken after DFSMS copies. The reason for this is that DFSMS does not reset the modified page indicator bit, which is used by incremental image copies to determine if a page has been modified since the last copy.