Power OFFLOAD under CA DYNAM T control fails.
It is possible that the standard label add for the dataset which appears in the 'POFF' TLBL did not occur at the correct time.
The standard label add should take place after CA Dynam T initialization. The sub-libraries for CA CIS and CA DYNAM must be in the LIBDEF search chain when CASAUTIL executes and when the STDLABEL ADD takes place.
Other Relevant Information:
See the CA Dynam z/VSE User Guide section entitled Controlling Single and Multi-Volume POWER Offload Tapes.