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FsRtlIsDaxVolume function (ntifs.h)

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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

Requirement Value
Minimum supported client Windows 10, version 1607
Minimum supported server Windows Server 2016
Target Platform Windows
Header ntifs.h