S2D 4k vs 64k which one should i choose?

[Jeff D. Chase]

Have read on numerous blogs a potential performance impact when using 4k block size for volumes in S2D vs 64k.  What does microsoft recommend for optimal performance?

[#2]

Good question. S2D will work with either, but storage spaces is optimized for 4k. It does many operations on a block basis and in 4k chunks so if they are 64k blocks it just means reading in and writing more data than necessary.

[#3]

Is this enough? https://blogs.technet.microsoft.com/filecab/2017/01/13/cluster-size-recommendations-for-refs-and-ntf...

[#4]

Yes, thank you for the quick answer.