Potential causes and actions to take are as follows:

• You uninstalled a Performance Management program without deleting its service information
  When you uninstall a Performance Management program, the service information for the program remains in the database. Execute the jpctool service delete command to delete the service information for the program. For details about how to delete service information, see the chapter on installation and setup in the Job Management Partner 1/Performance Management Planning and Configuration Guide.
  
• A machine's host name was changed without deleting the Performance Management service information
  If you change a machine's host name without deleting the Performance Management service information, service information that is linked to a service ID associated with the previous host name will remain in the database managed by the Master Manager service. You can use the jpctool service delete command to delete this service information. For details about how to delete service information and how to change host names, see the chapter on installation and setup in the Job Management Partner 1/Performance Management Planning and Configuration Guide.
  

If you execute the jpctool db dump command multiple times for the same Master Store or Remote Monitor Store service, and specify the same export file name each time, each subsequent execution of the command overwrites the results of the previous one. You should specify a different export file each time you execute the command for the same Master Store or Remote Monitor Store service. For details about how to export the Store database, see the chapter on management of operation monitoring data in the Job Management Partner 1/Performance Management User's Guide.