What feature of OCI Object Storage ensures that the most recent data copy is served on read requests?

The feature of OCI Object Storage that ensures that the most recent data copy is served on read requests is strong consistency. Strong consistency guarantees that once a write operation is acknowledged, any subsequent read requests will see that write. This means that after you upload or modify an object, any read from that object will present the most current version, ensuring data integrity and reliability in accessing the latest information.

For applications that require real-time data accuracy, such as financial applications or systems that manage critical transaction data, this feature is essential. It prevents scenarios where users or applications might receive outdated information after a write operation, thus maintaining a seamless and consistent experience.

In contrast, high availability refers to the system's ability to remain operational with minimal downtime, without necessarily ensuring that every read retrieves the most recent write. Data durability focuses on the protection of data from loss, ensuring that your data will remain safe and retrievable over time, but it doesn’t specifically address the timing of data access. Custom metadata provides additional information about the objects but does not impact how the object's data is accessed or updated.