RCM00011 DB2 CONNECTION ERROR during the Compare Db2 Objects (ssid0000) Post Install job

Products

• Database Management for DB2 for z/OS - Administration Suite
• Database Management for DB2 for z/OS - Performance Suite
• Database Management for DB2 for z/OS - Recovery Suite
• Database Management for DB2 for z/OS - SQL Performance Suite
• Database Management for DB2 for z/OS - Utilities Suite
• DATABASE MANAGEMENT SOLUTIONS FOR DB2 FOR Z/OS

Issue/Introduction

During the execution of the Database Management for Db2 for z/OS Compare DB2 Objects (ssid0000) Post Install job, it fails with the message:
RCM00011: DB2 connection error: DB2 SSID 'ssid being specified' is not defined in the Db2 tools PARMLIB.

Resolution

This error can be caused by a mismatch between the libraries the Xmanager started task has allocated, and the libraries the Compare DB2 Object job (ssid0000)
allocates, particularly, the PTIPARM DD's allocation.
Please check to ensure the same libraries are allocated for both the Xmanager started task and Compare DB2 Objects job.
Make any required modifications, then rerun the DB2 Compare Objects step jcl (ssid0000) again.

The message may appears as follows: RCM00011: DB2 connection error:, with no additional detail as to the problem.
If this is the case, please check that the Db2 subsystem is defined in the SETUPxx member that is being used.