Amazon RDS - what is the concurrent snapshot copy limit in ONE region

Question

Per the documentation, https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_CopySnapshot.html, "For each AWS account, you can copy up to 20 DB snapshots at a time from one AWS Region to another". In the same document, under Limitations, it is mentioned "You can have up to 20 snapshot copy requests in progress to a single destination Region per account."

Is there any concurrent snapshot copy limit in ONE AWS Region ? The use case here is, volume of snapshots are shared with multiple accounts in the same AWS Region and concurrent snapshot copy to happen in those accounts.

Kidd Ip · Answer

In your use case, where snapshots are shared across multiple accounts in the same Region, each account would still adhere to the same concurrent limit of 20 snapshot copy requests in progress. This limit is enforced per account, regardless of whether the snapshots are being copied within the same Region or across different Regions.
If you anticipate exceeding this limit due to the volume of snapshots, considering below:

1.	Stagger Snapshot Copies: Distribute the snapshot copy requests across different times to avoid hitting the concurrent limit.
2.	Automate with AWS CLI or SDK: Set up automation to monitor and queue snapshot copy requests, ensuring they don't exceed the limit.
3.	Explore Sharing Alternatives: If sharing snapshots among multiple accounts is the goal, consider using AWS Resource Access Manager (RAM) to grant access to shared snapshots directly, rather than copying them.

Amazon RDS - what is the concurrent snapshot copy limit in ONE region

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