Help Center> Relational Database Service> FAQs> Database Storage> Why Does My Primary RDS DB Instance Become Read-Only?
Why Does My Primary RDS DB Instance Become Read-Only?
If your storage space usage reaches up to 95% of the total storage, your primary RDS DB instance becomes read-only automatically. It becomes readable and writable after the storage space usage is less than 85% of the total storage. For details about the causes and solutions of insufficient storage space, see What Should I Do If My Data Exceeds the Database Storage Space of an RDS DB Instance?
Parent topic: Database Storage
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