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READ_FILE_USN_DATA structure

Specifies the versions of the update sequence number (USN) change journal supported by the application. This structure is the input structure to the FSCTL_READ_FILE_USN_DATA control code.

Syntax


typedef struct {
  WORD MinMajorVersion;
  WORD MaxMajorVersion;
} READ_FILE_USN_DATA, *PREAD_FILE_USN_DATA;

Members

MinMajorVersion

The lowest version of the USN change journal accepted by the application. If the input buffer is not specified this defaults to 2.

MaxMajorVersion

The highest version of the USN change journal accepted by the application. If the input buffer is not specified this defaults to 2. To support 128-bit file identifiers used by ReFS this must be 3 or higher.

Requirements

Minimum supported client

None supported

Minimum supported server

Windows Server 2012 [desktop apps only]

Header

WinIoCtl.h (include Windows.h)

See also

Volume Management Structures
FSCTL_READ_USN_JOURNAL

 

 

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