S3 Intelligent - Tiering - 'Monitoring and Automation' costs detailed break down.

Question

I have few questions related to s3 Intelligent - Tiering - 'Monitoring and Automation' costs , 
(note - we are not planning to use additional two archive classes)

how is the this 'Monitoring and Automation'  cost calculated.  ? I have checked the existing aws documention (https://aws.amazon.com/s3/pricing/) to find the details but could not. its only mentioned as fixed $0.0025 per 1,000 objects.  where objects > 128Kb

In our case we have 1500M objects and 190TB overall storage which means around 138 Kb on average but almost 50% of the keys will be less 128kb. (note- all objects in the bucket are in standard frequest access tier which we are planning to move to intelligent class)
even in this case (750,000,000 * 0.0025)/1000 = 1875$ is the cost .

Pricing Questions -
1) Is the above price calculation correct  , are there any other charges over this? 
2)  is there a case where monitoring charges are not applied on objects that are sent to archive instant class but are never accessed there after.
3)  is there any additional storage class transition cost while the objects transition between classes ?

Functionality question.
4)  can i move all objects back to Standard class from Intelligent in case we do not see the clear advantage.
5)  will there be any performance impact we observe if we move all existing objects using life cycle rule give high number, also can we continue rights and expect data to be consistent during transition ?

Answer

Hello, Venkata sairam.

**Monitoring and Automation Cost Calculation:**
Your calculation for the monitoring and automation cost seems correct. It is indeed a fixed cost of $0.0025 per 1,000 objects where objects are greater than 128KB in size. Given that you have 1500 million objects and 50% of them are less than 128KB, you can calculate the cost as you did: (750,000,000 * 0.0025) / 1,000 = $1,875.

**Additional Charges:**
There should not be any additional charges for monitoring and automation beyond what you've calculated. However, always double-check the AWS pricing page and your AWS billing statements for any potential changes or updates to pricing.

**Monitoring Charges for Objects Sent to Archive Instant:**
The monitoring charges apply to objects in the Intelligent-Tiering class, including objects moved to Archive Instant. If an object is transitioned to Archive Instant but is never accessed thereafter, it still incurs the monitoring charges.

**Additional Storage Class Transition Cost:**
In the case of Intelligent-Tiering, there are no additional storage class transition costs. The Intelligent-Tiering service itself manages the transitions between storage classes based on access patterns, and you are not charged separately for these transitions.

**Moving Objects Back to Standard Class:**
Yes, you can move objects from Intelligent-Tiering back to the Standard storage class if you do not see a clear advantage. You can configure lifecycle policies to transition objects back to the Standard storage class based on your requirements.

**Performance Impact and Data Consistency during Transition:**
When you move objects between storage classes using AWS lifecycle policies, you can expect minimal to no impact on performance. AWS handles the transition seamlessly in the background, and you can continue to read and write data during the transition. Data consistency is maintained throughout the process.
Best regards, Andrii.

S3 Intelligent - Tiering - 'Monitoring and Automation' costs detailed break down.

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