/// <summary>
/// Get the Media Rotation Rate of the Harddrive. If the Result is 1 then it is a SSD
/// !This method needs Administrator-Rights. Set this in app.manifest!
/// </summary>
/// <param name="diskindex">The Drive-Index</param>
/// <returns></returns>
public static string HasNominalMediaRotationRate(byte diskindex)
{
string sDrive = @"\\.\PhysicalDrive" + diskindex.ToString();
SafeFileHandle hDrive = WinAPI.CreateFileW(sDrive, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, IntPtr.Zero, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, IntPtr.Zero);
// Administrative privilege is required
if (hDrive == null || hDrive.IsInvalid)
{
string message = GetErrorMessage(Marshal.GetLastWin32Error());
return("CreateFile failed. " + message);
}
uint IOCTL_ATA_PASS_THROUGH = CTL_CODE(IOCTL_SCSI_BASE, 0x40b, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS);
// From ntddscsi.h
WinAPI.ATAIdentifyDeviceQuery id_query = new WinAPI.ATAIdentifyDeviceQuery();
id_query.data = new ushort[256];
id_query.header.Length = Convert.ToUInt16(Marshal.SizeOf(id_query.header));
id_query.header.AtaFlags = Convert.ToUInt16(ATA_FLAGS_DATA_IN);
id_query.header.DataTransferLength = Convert.ToUInt32(id_query.data.Length * 2);
// Size of "data" in bytes
id_query.header.TimeOutValue = 3;
// Sec
id_query.header.DataBufferOffset = (IntPtr)Marshal.OffsetOf(typeof(WinAPI.ATAIdentifyDeviceQuery), "data");
id_query.header.PreviousTaskFile = new byte[8];
id_query.header.CurrentTaskFile = new byte[8];
id_query.header.CurrentTaskFile[6] = 0xec;
// ATA IDENTIFY DEVICE
uint retval_size = 0;
bool result = WinAPI.DeviceIoControl(hDrive, IOCTL_ATA_PASS_THROUGH, ref id_query, Convert.ToUInt32(Marshal.SizeOf(id_query)), ref id_query, Convert.ToUInt32(Marshal.SizeOf(id_query)), ref retval_size, IntPtr.Zero);
hDrive.Close();
if (result == false)
{
string message = GetErrorMessage(Marshal.GetLastWin32Error());
return("DeviceIoControl failed. " + message);
}
else
{
// Word index of nominal media rotation rate
// (1 means non-rotate device)
const int kNominalMediaRotRateWordIndex = 217;
if (id_query.data[kNominalMediaRotRateWordIndex] == 1)
{
return("Result: This drive is NON-ROTATE device.");
}
else
{
return("Result: This drive is ROTATE device.");
}
}
}
/// <summary>
/// Get the Media Rotation Rate of the Harddrive. If the Result is 1 then it is a SSD
/// !This method needs Administrator-Rights. Set this in app.manifest!
/// </summary>
/// <param name="diskindex">The Drive-Index</param>
/// <returns></returns>
public static string HasNominalMediaRotationRate(byte diskindex)
{
string sDrive = @"\\.\PhysicalDrive" + diskindex.ToString();
SafeFileHandle hDrive = WinAPI.CreateFileW(sDrive, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, IntPtr.Zero, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, IntPtr.Zero);
// Administrative privilege is required
if (hDrive == null || hDrive.IsInvalid)
{
string message = GetErrorMessage(Marshal.GetLastWin32Error());
return "CreateFile failed. " + message;
}
uint IOCTL_ATA_PASS_THROUGH = CTL_CODE(IOCTL_SCSI_BASE, 0x40b, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS);
// From ntddscsi.h
WinAPI.ATAIdentifyDeviceQuery id_query = new WinAPI.ATAIdentifyDeviceQuery();
id_query.data = new ushort[256];
id_query.header.Length = Convert.ToUInt16(Marshal.SizeOf(id_query.header));
id_query.header.AtaFlags = Convert.ToUInt16(ATA_FLAGS_DATA_IN);
id_query.header.DataTransferLength = Convert.ToUInt32(id_query.data.Length * 2);
// Size of "data" in bytes
id_query.header.TimeOutValue = 3;
// Sec
id_query.header.DataBufferOffset = (IntPtr)Marshal.OffsetOf(typeof(WinAPI.ATAIdentifyDeviceQuery), "data");
id_query.header.PreviousTaskFile = new byte[8];
id_query.header.CurrentTaskFile = new byte[8];
id_query.header.CurrentTaskFile[6] = 0xec;
// ATA IDENTIFY DEVICE
uint retval_size = 0;
bool result = WinAPI.DeviceIoControl(hDrive, IOCTL_ATA_PASS_THROUGH, ref id_query, Convert.ToUInt32(Marshal.SizeOf(id_query)), ref id_query, Convert.ToUInt32(Marshal.SizeOf(id_query)), ref retval_size, IntPtr.Zero);
hDrive.Close();
if (result == false)
{
string message = GetErrorMessage(Marshal.GetLastWin32Error());
return "DeviceIoControl failed. " + message;
}
else {
// Word index of nominal media rotation rate
// (1 means non-rotate device)
const int kNominalMediaRotRateWordIndex = 217;
if (id_query.data[kNominalMediaRotRateWordIndex] == 1)
{
return "Result: This drive is NON-ROTATE device.";
}
else {
return "Result: This drive is ROTATE device.";
}
}
}
