We have added support for the zEDC Hardware Compression facility to CA XCOM r12.0 for z/OS. The support is made General Available via PTF RO96344.
To utilize this feature, you must use one of the ZLIBx family of compression algorithms and meet system configured minimum buffer sizes. This necessitates the use of PACKing in every case where the subject files's LRECL is less than the configured minimum.
For more details please refer to the CA XCOM r12.0 documentation.