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
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:
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.
|Server Message Block (SMB) 3.0 protocol||No|
|SMB 3.0 Transparent Failover (TFO)||No|
|SMB 3.0 with Scale-out File Shares (SO)||No|
|Cluster Shared Volume File System (CsvFS)||Yes|
|Minimum supported client||Windows XP [desktop apps only]|
|Minimum supported server||Windows Server 2003 [desktop apps only]|
|Header||winioctl.h (include Windows.h)|