What happens to a SQL Server RDS instance if the databases increase in size and go over the allocated space?

  • RDS will automatically increase the allocated space by 10% and will send the AWS root account an email with resolution steps. Allocate more space to avoid overage charges.
  • The database instance will report a STORAGE_FULL status and become inaccessible if the instance does not have enough remaining storage to operate. Allocate more space to the instance.
  • SQL Server will close all existing connections to the databases and attempt to shrink its log files to reclaim storage space.
  • RDS will automatically increase the allocated space by 5% and will continue to allocate new space up to 50% of the orginal allocated space. When storage space has increase 50%, RDS will automatically stop the instance to preserve data integrity.
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