CPHDY0004E Discovered Sysplex discovered_sysplex does not match current host Sysplex known_sysplex. Discovery operation cancelled.
Explanation
The Sysplex name discovered does not match the previously discovered Sysplex name. CICS DA does not support multiple Sysplexes.
System action
The discovery operation is cancelled.
Response
Either delete the existing CICS DA model or re-run discovery against the previously discovered Sysplex.