Stop using Reduced Redundancy S3 storage (RRS) on AWS now. Starting price for RRS is now $0.024 where as standard S3 starts at $0.023.
This caught me off guard today as I use RRS for backups due to what used to be an approximate 33% savings over standard S3.
For me using Glacier for backups is out of the question due to the waiting period necessary to get files.
There is also the newer “Standard – Infrequent Access” storage type for S3. This is a good option for storing perhaps a system image when doing backups, however for what I normally backup, which are small website files, this likely won’t be a good fit either. Each file has a minimum storage bill of 128KB. The math and gamble required likely won’t be worth the effort.
So for now I’ll likely be switching to all standard S3 storage for backups. I don’t use S3 for much else other than EC2 snapshots and temporary file storage for migrations.