minimum object size of 128kb at One Zone Infrequent Access Storage Class?

Question

Hi there,
I am planning on uploading a couple of hundreds TB file server data for archival into Glacier Deep Archive. I understand that there is a minimum object size von 128kb for any of the glacier storage classes. Additionally I found in the documentation there a 8kb and 32kb metadata will be created for every object stored in Glacier.

Having that informationen, I decided to store smaller files in IA or one zone IA. I could not find any information in the AWS sites itself about a minimum object size on IA as well which then would lead me avoid this storage class as well. But what is confusing me is that a couple of external websites explaining the pricing of S3 do claim that there actually is a 128kb minimum object size on IA as well.

Is that just outdated information? Or in other words: Beyond Glacier, is there any minimum object size (billing wise).

Thanks
Markus

MG · Accepted Answer

It has the minimum object size too, you can find it [here](https://aws.amazon.com/s3/pricing/).

From the page linked above:

> S3 Standard-IA and S3 One Zone-IA storage have a minimum billable object size of 128 KB. Smaller objects may be stored but will be charged for 128 KB of storage at the appropriate storage class rate.

rePostfanclub · Answer

The AWS S3 pricing below has relevant information about how it works with IA and Glacier  (see notes in ** and ***) section.
https://aws.amazon.com/s3/pricing/

The user guide outlines some best practices for this.
https://docs.aws.amazon.com/AmazonS3/latest/userguide/lifecycle-transition-general-considerations.html

S3 intelligent tiering helps to optimize costs by automatically moving data to the most cost effective tier when access pattern change. One can opt-in to Archive Access Tier or Deep Archive Access Tier.
https://aws.amazon.com/s3/storage-classes/intelligent-tiering/

minimum object size of 128kb at One Zone Infrequent Access Storage Class?

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