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