Physical data set dump

If you specify DATASET and INDDNAME or INDYNAM, DFSMSdss performs a physical data set dump. For instance, the following DUMP command results in a physical data set dump:

DUMP  -
     INDDNAME(DASD1) OUTDDNAME(TAPE)  -
     DATASET(INCLUDE(**))  -
     COMPRESS -
     OPTIMIZE(4)

When multiple input volumes are specified for a physical data set dump operation, multiple logical files (logical volumes) are created for each physical DASD source volume.

DFSMSdss facilitates backup and recovery procedures for physical data set dumps by printing the names of data sets dumped, and the serial and data set sequence numbers of the backup tape volumes on which the dump of a DASD volume begins and ends.

A physical data set dump or restore operation cannot process the following data sets:

KSDSs with key ranges. Logical processing should be used for this type of data set.
Extended-format VSAM data sets, including extended-addressable VSAM data sets. Use logical processing for these types of data sets.
VSAM data sets not cataloged in an integrated catalog facility catalog.
Page, swap, and SYS1.STGINDEX data sets.

Note: When dumping multivolume data sets, take care to ensure that all volumes where the data set resides are dumped at the same time and restored at the same time. Dumping parts of a multivolume data set and then restoring them may leave the entire data set or those parts unusable. In particular, keyed VSAM data sets are easily damaged by such an operation.