Using the Checkpoint Checker › Technical Overview › Server

Server

The Server performs real-time supervision of all job steps within the Scope. The components of the Server recognize the following:

• The use of DB2 by reading and interpreting the SMF 89 record after job step termination
• The use of DLI by checking if the IMS region controller is executed in the JCL (DFSRRC00 or derivatives)
• Each physical checkpoint written, by reading and interpreting message DFS681I in the SYSLOG file

The Server calculates the average time interval in seconds between checkpoint writing for a job step and stores this value as a checkpoint frequency in the database.