Given a Storage Spaces Direct setup that includes persistent memory and several data volumes, on which volumes can direct access (DAX) be used?

Direct Access (DAX) can only be used on volumes formatted with the NTFS file system and residing on persistent memory (PMem). In this scenario, Volume3 is the only volume that meets both of these criteria, as it is on persistent memory and formatted with NTFS. Volume4 is also on persistent memory, but it is formatted with ReFS, which does not support DAX. Volume1 and Volume2 are on SSDs, not persistent memory, so they cannot use DAX regardless of their file system.