Are there difficulties migrating from Aurora MySQL to Aurora Serverless

In addition to snapshot restore method mentioned in customer provided blog they can also migrate the data from Aurora Provisioned Cluster to Aurora Serverless cluster by using one of the below methods.

1. Customer can use a snapshot of Provisioned Aurora cluster running in version 5.6.10a and restore the same to a Serverless cluster. It was also mentioned in the shared blog post link that only version is 5.6 10a

Reference [+] https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/USER_CreateSnapshotCluster.html [+] https://docs.amazonaws.cn/en_us/AmazonRDS/latest/AuroraUserGuide/aurora-serverless.restorefromsnapshot.html.

2. Customer can use native backup and restore process using mysqldump to perform a logical static migration.

Reference [+] https://dev.mysql.com/doc/refman/5.6/en/replication-howto-mysqldump.html

3. They can use services like DMS to perform a full migration with capture changes, but this will require extra configuration from source and also a replication instance, it can be useful to minimize database downtime.

Reference [+] Targets for Data Migration - https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Target.html [+] https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Source.html

About Pricing: it may not use 64 ACU all the time and customer need to look at their usage pattern(CPU/Memory) in 24 hours and ACU will be consumed based on the usage which varies over a period of time, here are some detailed pricing examples: https://aws.amazon.com/rds/aurora/serverless/