Minimum Limit on S3 Bucket creation | NetApp | Page 1

slim spade Mar 6, 2024, 11:01 PM

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Hello,
I have recently created an SVM for S3.
Upon creating my first bucket it seems the minimum required limit is 95GB.
I could have missed something but I was unable to find a clear explanation about this.

Can anyone explain why this minimum limit is so high?

What if I want to create a small bucket?

small musk Mar 6, 2024, 11:53 PM

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At a guess it’s due to the requirement to back them with a Flexgroup

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Minimum recommended size for a flexgroup is 100G - subtract metadata for S3 and I’d say it’s very likely to be the close

fathom shard Mar 7, 2024, 1:34 AM

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You can create a smaller bucket from the ONTAP CLI. The minimum size you are seeing is likely due to System Manager utilizing best practices .
https://docs.netapp.com/us-en/ontap-cli-9141//vserver-object-store-server-bucket-create.html

vserver object-store-server bucket create

Create an object store server bucket

slim spade Mar 7, 2024, 2:46 PM

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ok so I tried using the CLI but I got a error:
"Specified bucket size is too small. The minimum supported bucket size is 102005473280B"

I think this is because of the Flexgroup requirement that @small musk mentioned?

fathom shard Mar 7, 2024, 3:08 PM

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You should be able to create a smaller bucket without specifying a size during creation like below:

[Job 2487] Job succeeded: Successful

nas-cm913::> vserver object-store-server bucket show -vserver mpsvm913
Vserver     Bucket          Type     Volume            Size       Encryption Role       NAS Path
----------- --------------- -------- ----------------- ---------- ---------- ---------- ----------
mpsvm913    mptest          s3       fg_oss_1706280742 1.60GB     false      standalone -```

slim spade Mar 7, 2024, 3:13 PM

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that actually resulted in a bucket that is 800GB by default

fathom shard Mar 7, 2024, 3:47 PM

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What version of ONTAP are you running?

slim spade Mar 7, 2024, 3:47 PM

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9.12

brittle sail Mar 7, 2024, 5:58 PM

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the FlexGroup that gets created is also not the bucket. The bucket is in the FlexGroup. But the FlexGroup can host multiple buckets

slim spade Mar 7, 2024, 6:01 PM

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ok gotcha. If I create a second bucket, do I need to somehow specify an existing FlexGroup? I didnt see anything about that but want to be sure.

brittle sail Mar 7, 2024, 6:27 PM

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no I think that is all managed by ONTAP internally. I'm not even aware if you could have it create a new FlexGroup for that purpose? I don't think you can. Back in 9.8 or something, the "1 FlexGroup = 1 Bucket" held, but that was only in the first version, so unless you're stuck with an old ONTAP it shouldn't matter

#Minimum Limit on S3 Bucket creation