Optimal block size for reading from blobs

[kmathewmk]

Could you please detail the optimal block size to use when reading from the various blob types? Some do's and dont's would be helpful.

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Document Details

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• ID: 6cca4823-69a3-0b1a-059a-3a0605ed74ce
• Version Independent ID: 8e8299f1-e618-f1d1-bed2-0e3f4e05829e
• Content: Performance and scalability checklist for Blob storage - Azure Storage
• Content Source: articles/storage/blobs/storage-performance-checklist.md
• Service: storage
• Sub-service: blobs
• GitHub Login: @tamram
• Microsoft Alias: tamram

[AjayBathini-MSFT]

@kmathewmk
Thanks for your feedback! We will investigate and update as appropriate.

[SaibabaBalapur-MSFT]

@kmathewmk
Since this issue isn't directly related to improving our docs, and to gain a better understanding of your issue, I'd recommend working closer with our support team via an [Azure support request] (https://docs.microsoft.com/en-us/azure/azure-portal/supportability/how-to-create-azure-support-request). Or you can leverage our Q&A forum by posting your issue there so our community, and MVPs can further assist you in troubleshooting this issue or finding potential workarounds.

[Teams Q&A forum] (https://docs.microsoft.com/en-us/answers/topics/46488/office-teams-windows-itpro.html) for technical questions about the configuration and administration of Microsoft Teams on Windows.
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[kmathewmk]

Personally, I think it would easier for users if the best practices were readily available in the docs rather than have to contact support or a Q&A forum. For eg you have some such info below but not much on blob reads:
https://learn.microsoft.com/en-us/rest/api/storageservices/understanding-block-blobs--append-blobs--and-page-blobs#about-block-blobs
https://learn.microsoft.com/en-us/azure/storage/blobs/storage-performance-checklist?source=recommendations#partitioning

[tamram]

#please-reopen

[tamram]

@SaibabaBalapur-MSFT - could you please reopen this issue? I agree with @kmathewmk that we should address this in the docs.

[tamram]

#reassign: @pauljewellmsft

[phillebaba]

I would also like this documentation to be expanded. I have done my own research which I have covered in thanos-io/objstore#40 that points towards that block size has an affect on download duration. If this is the case it should really be covered in the documentation, as each developer should take this into consideration when uploading block blobs.

[pauljewellmsft]

Thanks for the helpful feedback. A new article was recently published to help walk through some of these performance considerations when transferring data via the client library. Feel free to offer suggestions there.

#please-close