FSCTL_CREATE_USN_JOURNAL IOCTL (winioctl.h)

Creates an update sequence number (USN) change journal stream on a target volume, or modifies an existing change journal stream.

BOOL 
WINAPI 
DeviceIoControl( (HANDLE) hDevice,              // handle to volume
                 FSCTL_CREATE_USN_JOURNAL,      // dwIoControlCode(LPVOID) lpInBuffer,           // input buffer
                 (DWORD) nInBufferSize,         // size of input buffer
                 NULL,                          // lpOutBuffer
                 0,                             // nOutBufferSize(LPDWORD) lpBytesReturned,     // number of bytes returned
                 (LPOVERLAPPED) lpOverlapped ); // OVERLAPPED structure

Remarks

For the implications of overlapped I/O on this operation, see the Remarks section of the DeviceIoControl topic.

You can use FSCTL_CREATE_USN_JOURNAL to create a new change journal stream for a volume. After the creation of the stream, the NTFS file system maintains a change journal for that volume.

You can also use FSCTL_CREATE_USN_JOURNAL to modify an existing change journal stream. If a change journal stream already exists, FSCTL_CREATE_USN_JOURNAL sets it to the characteristics provided in the CREATE_USN_JOURNAL_DATA structure. The change journal stream eventually gets larger or is trimmed to the new size limit that CREATE_USN_JOURNAL_DATA imposes.

For more information, see Creating, Modifying, and Deleting a Change Journal.

To retrieve a handle to a volume, call CreateFile with the lpFileName parameter set to a string in the following form:

\.\X:

In the preceding string, X is the letter identifying the drive on which the volume appears. The volume must be NTFS 3.0 or later. To obtain the NTFS version of a volume, open a command prompt with Administrator access rights and execute the following command:

fsutil fsinfo ntfsinfo X:

where X is the drive letter of the volume.

In Windows Server 2012, this function is supported by the following technologies.

Requirements

See also

CREATE_USN_JOURNAL_DATA

Change Journals

CreateFile

DeviceIoControl

OVERLAPPED

Volume Management Control Codes