DSPSERV EXTEND error. RC=X" return_code" RSN=X" reason_code".
Application Performance Analyzer was unable to extend a sampling data space. return_code and reason_code represent the return and reason codes returned by DSPSERV EXTEND.
The sampling request will be terminated and the sampling data set might be unusable.
Refer to the MVS™ Programming: Authorized Assembler Services Reference for information about the DSPSERV EXTEND return and reason codes. Correct the problem then resubmit the sampling request.