cost optimization

I am looking to integrate Amazon Managed Blockchain with Amazon RDS and need to understand how Hyperledger processes the data. Specifically, I want to know:

Does Hyperledger process the entire dataset from RDS in bulk, or does it handle data item by item? Do we need to create a batch for sending data to reduce cost How is the data flow managed between RDS and the peer nodes in Hyperledger? What are the steps involved in ensuring data integrity and consistency across the peer nodes during this integration?

( for cost optimization)