Symptom
Data on transaction code DB02 is not updated.
Solution
1. Ensure file system size still sufficient.
2. Check that job SAP_COLLECTOR_FOR_PERFMONITOR (report RSCOLL00) is running via transaction code SM37. You can schedule the job to be run hourly (as per SAP recommendation) via transaction code SM36.
3. If the data in transaction code DB02 still not updated after step 2 is done, please refer to SAP Note 1002840 for further checks
