how I was surprised by a large AWS charge and how to calculate the break-even point
Glacier Archival of S3 Objects
Amazon recently introduced a fantastic new feature where S3 objects can be automatically migrated over to Glacier storage based on the S3 bucket, the key prefix, and the number of days after object creation.
This makes it trivially easy to drop files in S3, have fast access to them for a while, then have them automatically saved to long-term storage where they can’t be accessed as quickly, but where the storage charges are around a tenth of the price.
…or so I thought.