Maintaining the Performance Database 
Use
The data displayed in the CCMS monitors originates in the performance database
MONI , with only a few exceptions, such as the data of the operating system and data from database system sources.In addition to collecting data, the programs
RSSTAT60 and RSSTAT80 also reorganize MONI database and clean up files used for buffering statistical data in local host systems.Procedure
Specify that the ABAP program
RSSTAT80 should run in the background, which will cause data from application servers to be transferred to database MONI . The RSSTAT80 program collects both data stored by the monitor in a file of the host system and extended table access statistics held in shared memory.