First published on TECHNET on Jan 13, 2017
Microsoft’s file systems organize storage devices based on cluster size. Also known as the allocation unit size, cluster size represen...
Updated Apr 10, 2019
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Cluster size of host drive has no value to VHDX operation. Note, cluster is used only for disk space allocation and is not involved in I/O operation.
MFT zone reservation is made by ntfs.sys driver not by NTFS itself. Since Vista and WS2008 maximum reserved zone is 800 MB.
As far as I know, there is no any special recommendations for very large drives with a huge number of files.