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DBA Daily/Weekly/Monthly or Quarterly Checklist

DBA Daily/Weekly/Monthly or Quarterly Checklist
In response of some fresher DBA I am giving quick checklist for a production DBA. Here I am including reference of some of the script which I already posted as you know each DBA have its own scripts depending on database environment too. Please have a look on into daily, weekly and quarterly checklist.
Note: I am not responsible of any of the script is harming your database so before using directly on Prod DB. Please check it on Test environment first and make sure then go for it.
Please send your corrections, suggestions, and feedback to me. I may credit your contribution.  
Thank you.
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Daily Checks:
Verify all database, instances, Listener are up, every 30 Min.
Verify the status of daily scheduled jobs/daily backups in the morning very first hour.
Verify the success of archive log backups, based on the backup interval.

Check the space usage of the archive log file system for both primary and standby DB.

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