Migrating an AWS RDS Oracle Database to OCI with less downtime

Hi,

I was helping a customer who needed to migrate an AWS RDS Oracle Database (15TB) to OCI having a few minutes of downtime.

Due to some restrictions, they cannot use Oracle Golden Gate.

A good option is to use the RMAN incremental backups as described in these blog posts:

https://blogs.oracle.com/maa/post/migrating-rman-backups-from-s3-to-oci-osb-cloud-module-for-aws-s3-to-db-cloud-backup-module-for-oci

https://blogs.oracle.com/maa/post/physical-migration-of-an-aws-rds-oracle-database-to-oracle-cloud-infrastructure-via-rman-backup-and-restore

Just change the package used on these posts to rdsadmin.rdsadmin_rman_util.backup_database_incremental.

Here you can find some explanations about the Rman Incremental Backup Algorithm.