User experience on storage tiering
The storage tiering system has three tiers - Hot, Cool, and Archive. The Hot tier stores frequently access that content that needs to be readily available. The Cool tier stores less regularly accessed content but still needs to be easily accessible. From a user's perspective, the data that is stored in the Cool tier is similar to the data that is stored in the Hot tier. The Archive tier is designated for data tolerating retrieval latencies of up to 15 hours or more. When you design an Archive tier policy, you should select the content that does not require timely access and does not have stubs.