Requests for monitoring and debugging your IMS program

You can use the STAT and LOG requests to help you in debugging your program.

• The Statistics (STAT) call retrieves database statistics.
• The Log (LOG) call makes it possible for the application program to write a record on the system log.

The enhanced OSAM and VSAM STAT calls provide additional information for monitoring performance and fine tuning of the system for specific needs.

When the enhanced STAT call is issued, the following information is returned:

• OSAM statistics for each defined subpool
• VSAM statistics that also include hiperspace statistics
• OSAM and VSAM count fields that have been expanded to 10 digits