With the application of ptf RO91442 in r19, the ability to unload and retain SMF compressed records during the history unload process became available.
This process is controlled with the 'CMP=' parameter on the IDB2 Unload job (CMP=YES is the default if not specified).
To alleviate the S0C4-11 abends when reading the compressed SMF unloaded history records, the parameter CMP=NO needed to be added to the IDB2
Unload job's execution parameters.