To use the CONSOLIDATE command to relocate data extents on a DASD volume, you need DASDVOL-access authority to that volume or READ-access to the data sets that are relocated. Otherwise, only unprotected data sets are relocated.

As part of the CONSOLIDATE operation, DFSMSdss creates a work data set (SYS1.DFDSS.DEFRAG.xxxxxxxx.volser.DUMMY), which is deleted after successful completion of the CONSOLIDATE function. If the CONSOLIDATE operation is prematurely ended, rerun the CONSOLIDATE function to clean up this data set.