Configuring the Data Collector 
Purpose
The data collector, the ABAP program
RSCOLL00 , is a centrally located program that uses RFC to start and monitor a number of other programs on the various application servers for the purpose of gathering statistics regarding the various R/3 instances, the database and the operating system. (For a central R/3 instance RFC is not required.)The data collector and the programs it triggers enable these statistics to be:
Thus, the data collector triggers programs that, for example, gather statistics for the Operating System Monitor using data read locally from the operating system kernel. Other programs analyze the disk space still available to the database system or log all changes to the operating system, database, and R/3 System parameters.
The data collector is scheduled as a periodic background job and automatically reads which programs to trigger and when to trigger them from table
TCOLL . Thus, to specify which programs to run, when they are to run, and on which R/3 instance, simply maintain the table TCOLL (see also R/3 Note 12103 and R/3 Note 127642).
Procedure
Scheduling the Data Collector in Background Processing
Schedule data collector program
RSCOLL00 to run every hour as an R/3 background processing job using Transaction SM37 and using the job name SAP_COLLECTOR_FOR_PERFMONITOR or COLLECTOR_FOR_PERFORMANCEMONITORDisplaying the Data Collector Logs
You can display the data collector logs using the
RSCOLL20 program. As with the SAP background processing logs, data collector logs are reorganized by the data collector itself.You can also display the data collector logs by calling the Workload Monitor (Transaction ST03), and then choosing Environment ® Data collector ® Display protocol.
See also:
Scheduling Data Collector Reports Ineligible Queue (OS/400)