http://sapbasisnotes.blogspot.in/2009/05/basis-tasks-to-be-done-on-regular.html

Basis tasks to be done on a regular scheduleDaily Tasks:□ Check that the SAP System(s) is up□ Check that daily backups executed without errors□ Check that all application servers are up□ Check the CCMS alert monitor (if applicable) (RZ20)□ Check work processes (SM50)□ Look for any failed updates (update terminates) (SM13)□ Check System Log (SM50)□ Review for cancelled and critical jobs (SM37)□ Check for “old” locks (SM12)□ Check users on system (SM04)□ Check for spool problems (SP01)□ Check job log (SM35)□ Review and resolve dumps (ST22)□ Review workload statistics (ST03)□ Review buffer statistics (ST02)□ Review error log for problems (AL02 & ST04)□ Review UNIX system logs for problems (AL16)□ Review Windows system logs for problems (OS06)□ Check the uninterruptible power supply (UPS)Weekly Tasks:□ Check database for free space (DB02)□ Monitor database growth (DB02)□ Check spool for problems and that spool is properly cleared (SP01)□ Verify all properly approved transports imported into PRD (STMS)□ For Oracle, run a check database and a update statistics job (DB13)□ For MSSQL, run a check database integrity mainenance job and a update statistics

maintenance□ Check file system for adequate space (RZ20 - Technical Operations Templates ->

Space Management)□ Review space usage and that sufficient free space exists in the file systems□ Check system monitoring systems for update□ System monitor Review for any events that should be added or deleted□ Check system monitor alert mechanisms□ System monitor Test e-mail□ Test paging□ Clean tape drive. Tape drive Clean using cleaning cartridgeMonthly:

□ Defragment the server memory by cycling the SAP instance and rebooting the server.□ Record database growth usage for plotting growth.□ Record disk space growth usage for plotting growth.□ Perform a full server backup.□ Review disk storage usage on server.□ Do any server "housecleaning" - old /tmp files, etc.□ Check consumable resources - tapes, check, data cartridges, preprinted forms, paper, etc.Quarterly Tasks:□ Perform quarter-end backups and send tapes to long-term offsite storage.□ Review user IDs via SUIM for terminates users that should be locked or

delete.□ Review list of "prohibited" passwords in table USR40.□ Review system profile parameters for password standards.□ Review all scheduled jobs via SM37 to determine if they are still appropriate.□ Test database recvoery Restore database to a test server/□ Archive all transport files older than 6 months from the /usr/sap/trans

directory.□ Cleaup all SAPDBA/BRTOOLS files and logs.