120

Explanation
Geographically Dispersed Parallel Sysplex® (GDPS®) processing has stopped a system. See GDPS/PPRC
Installation and Customization Guide for additional information.

System action
GDPS processing
places the z/OS® image(s) affected
in wait state X'120' with reason code 4 or wait state X'CCC'. GDPS also issues message GEO557E,
which is delivered to the console specified in the SYNCHDEST definition
in your CONSOLxx member.

Source
GDPS