SAM and VSAM Data Sets

You can use the IDCAMS IMPORT and EXPORT commands to copy or move SAM and VSAM data sets. You can use the DFSMSdss data mover to back up, retrieve, or migrate SAM and VSAM data sets. You must use the DFSMSdss data mover if the data sets are managed by DFSMShsm.

These data movers automatically propagate associated DDM attributes when moving data sets to other volumes or other systems. DDM attributes associated with SAM and VSAM data sets are not propagated in the following situations:

If you move data sets to a system that does not support DFM
If you use IDCAMS IMPORT with the INTOEMPTY parameter
If you use the IDCAMS REPRO command