FsRtlIsDaxVolume function (ntifs.h)

This routine queries if the specified file is on a direct access (DAX) volume.

Syntax

BOOLEAN FsRtlIsDaxVolume(
 [in] PFILE_OBJECT FileObject
);

Parameters

[in] FileObject

A file object for a file, on the volume which is being queried.

Return value

Returns true if the file is on a DAX volume; otherwise, false.

Remarks

In DAX volumes, user files are mapped directly to the persistent memory device. Files are then accessed using the memory bus, to help boost system performance.

Requirements