Specifying zEDC compression at the system level

In addition to the existing TAILORED and GENERIC options, you can now use the ZEDC_R ("zEDC Required") and ZEDC_P ("zEDC Preferred") options on the COMPRESS parameter found in the IGDSMSxx member of SYS1.PARMLIB.

For more information, see z/OS MVS Initialization and Tuning Reference