How to find breakdown of RDS storage?
I have received an email notifying me that 17Gb (20Gb available) of storage in my free tier RDS has been used, but the FreeStorageSpace metric in CloudWatch shows 20Gb free, and querying my DB shows around 8Mb of usage.
Is there a way to see a breakdown of that 17Gb to see which services/processes might be taking up space?
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Hello,
Amazon RDS Storage is billed based on 'Provisioned Storage' which accounts for the entire size of any EBS storage attached to RDS instances. Even if you are only using 8MB of an attached EBS volume, you will be billed for the total amount of storage that was configured during the creation of the RDS instance.
For Amazon RDS instances running PostgreSQL, MySQL, or MariaDB, the minimum storage size that can be configured when launching an instance is 20GB.
You can view the storage configuration of your RDS instances under Configuration by selecting the Database Identifier in the RDS -> Databases section of the AWS console.
Additional information on RDS Database Storage pricing can be found at:
To analyze RDS storage utilization in detail please follow this article which details how to breakdown this detail. Also do you know if you have backup/snapshots enabled?
Let me know if this helps
https://repost.aws/knowledge-center/view-storage-rds-mysql-mariadb
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