1 Answers
There is currently no automatic method to copy objects present in a bucket before replication is turned on.
There are several options presented in this AWS Premium Support Knowledge Centre article: https://aws.amazon.com/premiumsupport/knowledge-center/s3-large-transfer-between-buckets/
Options given are:
- S3 Batch operation
- S3DistCP with Amazon EMR (Elastic Map Reduce)
- AWS DataSync
All options will incur additional costs (network traffic plus service costs from selected service)