Q1: So I assume "IntelligentTieringFAStorag" means Intelligent tiering Frequent Access storage. Am I right?
As most of this objects where not accessed for a long time, I assumed they will directly go to the cheeper tiers.
Not really. Monitoring of the objects only happens once they are moved to the Frequent Tier of the Intelligent Tiering Storage class. Once the object is in the "IntelligentTieringFAStorag", then the monitoring starts, and then 30, 60, 90, and 180 day thing applies.
Q2: Looks like I was wrong, or do they need more time to do this?
Above answer should clear this as well. I hope so:)
Q3: Does the change of the tier to Int. tiering marked the objects as "accessed" and this means I have to wait 90-180 days more?
NO. Once the object is in the frequent tier, and if not accessed for 30 days, it moves to Infrequent tier and so on. Transitioning of the objects doesn't count as "accessed".
Q4: Is there a way to force the objects to go to the archive tiers, without paying again for the tier change (there are a lot of objects in this buckets).
Not in case of intelligent tiering storage class. The transition is automatic and cannot be enforced. If it's a requirement, then you can use Glacier and Deep Glacier storage classes.
I hope the above answers your question. If not, do let me know.
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