Thank you for asking your question.
Unfortunately, currently, Aurora Serverless v1(MySQL5.6-compatible) doesn't support database cloning feature.
- Limitations of Aurora cloning
- MySQL 5.6-compatible Aurora Serverless v1 doesn't support cloning. You can't create an Aurora Serverless v1 clone from a MySQL 5.6-compatible provisioned cluster. You can't create a provisioned clone of a MySQL 5.6-compatible Aurora Serverless v1 cluster, that is, a clone that uses a provisioned DB instance class such as db.r5.large. (https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Aurora.Managing.Clone.html)
This limitation is also applying create clone from Aurora Serverless v1 to Aurora Serverless v1 cluster.
Please use snapshot restore to create test cluster instead.
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