[SOLVED] How to set Cluster size in Windows Storage Spaces Pool

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May 2, 2022

I had originally setup a Storage pool in windows for 2x 16TB Hard drives using simple setting no resiliency. Now the data is almost full, so i decided to try and add a 18TB hard drive to the pool. then it said this:

"storage space cannot be extended because the number of clusters will exceed the maximum number of clusters supported by the file system"

I looked into this issue and the problem was because of the cluster allocation size of the hard drives. They were set to 8kb which limits the volume total to 32TB max thus not allowing me to increase it.

Now i'm in a position where i have backed everything up and wish to start again using storage spaces pool but this time i want to set the Hard drives cluster allocation size to 64KB from the start which allows me to create volumes up to 256TB by adding hard drives to the pool in the future.

Could someone please help me find where to set the Cluster Size please?

Thank you Kindly
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