AWS S3 Cross Region Replication
You must enable versioning a the bucket level to use the Cross Region Replication feature.
Pros:
- Easy to setup
- Enhances high availability of S3 objects
- Faster access for end users in the regions replicated to
- Mitigates S3 hotspots
- Extra S3 storage charges are cheap usually depending on volume
Cons:
- You pay for the extra S3 storage
- Must enable versioning – which may cost more – nice feature though
Other features:
For example, you can configure cross-region replication to replicate only objects with the key name prefix BasketballTeams/.
S3 will then replicate objects with a keys like BasketballTeams/Sacramento or BasketballTeams/GoldenState, but not an object with the key HockeyTeams/Detroit.
S3 encrypts all data in transit across AWS Regions using Secure Sockets Layer (SSL).
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