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

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

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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Is that just outdated information?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

2 Answers
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Accepted Answer

It has the minimum object size too, you can find it here.

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.

answered 5 months ago
  • Thanks MG. I cant believe that I did actually not see it right in the pricing info. I have been reading thias page like a hundred times, put hours of research into it and there it was all the time, shoot. Thanks for putting light on my blind spot.

  • Don't worry :) I'm glad that I could help.

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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/

answered 5 months ago

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