Hi,

DFSMShsm invokes DSS DUMP FULL to create dump copies.  HSM specifies the 
TOLERATE(IOERROR) keyword.  This varies from the ENQF option.  ENQFAILURE is 
mutually exclusive with FULL.  TOL(IOE) indicates that I/O errors on the volume 
being dumped should not fail the dump (unless there are 100 or more).  On 
restore, the tracks that couldn't be read are cleared.  (Refer to the DSS 
manual for DUMP FULL and TOLERATE(IOERROR)).  Full volume dump processes at the 
Track/Cylinder level, not the data set level.  Individual data set enqueues are 
not obtained.  The VTOC is locked to prevent any creates, extends, renames and 
deletes during the dump.  Active data would be a Fuzzy backup if it is not 
being quiesced during the dump, but it would still be dumped.

What are you seeing when you indicate that no data is backed up?

Glenn Wilcock
DFSMShsm Architect

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