Service Level Agreement (SLA) Availability
Moving from the Standard storage class to the Intelligent Tiering class implies one nine less in both the designed availability and its SLA, as per AWS documentation.
Standard | Intelligent Tiering | |
|---|---|---|
Designed for availability | 99.99% N/A ~52 mins/year | 99.9% N/A ~8 hours/year |
SLA Availability | 99.9% | 99% |
The durability remains 99.999999999% (11 nines).
Additional Access to Objects
The mechanism by which Intelligent Tiering transitions objects between tiers is based on the access pattern to each object. Operations like replication, if in place, may continuously access objects that are not currently used by the application and render Intelligent Tiering’s transition mechanism inefficient.
JFrog recommends mapping the procedures applied to the objects of your storage before embarking on the transition to Intelligent Tiering because if the objects are constantly refreshed, Intelligent Tiering will never transition them to the cheaper tiers.