Hi Deepika, That is because you have not executed 'ALL' commands to clean DB. You also need to execute other command to clean History data, please see link below for more details https://wiki.ca.com/display/SOI33/_Clean+Up+History+Data_2144701 --purgeClearedAlerts will clear alerts from following tables ActionHistory, AlertHistory, AlertImpact, AlertAnnotation, Alerts, ca_ssa_tags,ca_ssa_notebooks_timestamp, ca_ssa_ci_timestamp, ca_ssa_ci_detail --cleanHistoryData will clear data from following tables CIChangeHistory, CIHealth, CIQuality, CIRisk, DbAvailHistory, DbRiskHistory, DbQualityHistory Thanks, Ashay