我们正在尝试通过 C++ 程序使用 Windows 服务器 2008/2012 上某些现有磁盘的属性来初始化磁盘。
我们正在使用磁盘管理控制代码DeviceIoControl()
中的方法和IOCTL_DISK_CREATE_DISK
代码IOCTL_DISK_SET_DRIVE_LAYOUT_EX, IOCTL_DISK_SET_PARTITION_INFO_EX
来使磁盘可用。
通过搜索得到以下代码片段
//To open the drive
hDevice = CreateFile( TEXT("\\\\.\\PhysicalDrive7"),
GENERIC_READ | GENERIC_WRITE, // no access to the drive
FILE_SHARE_READ | FILE_SHARE_WRITE, // share mode
NULL, // default security attributes
OPEN_EXISTING, // disposition
0, // file attributes
NULL); // do not copy file attributes
CREATE_DISK dsk;
dsk.PartitionStyle = PARTITION_STYLE_MBR; //It can also be PARTITION_STYLE_GPT
dsk.Mbr.Signature = 1;
// Initialize disk
bResult = DeviceIoControl( hDevice, // device to be queried
IOCTL_DISK_CREATE_DISK, // operation to perform
&dsk, sizeof(dsk),
NULL, 0, // no output buffer
&junk, // # bytes returned
NULL
);
LARGE_INTEGER lgPartitionSize;
lgPartitionSize.QuadPart = (1024 * 1024 * 1024);
DWORD dwDriverLayoutInfoExLen = sizeof (DRIVE_LAYOUT_INFORMATION_EX) + 3 * sizeof(PARTITION_INFORMATION_EX);
DRIVE_LAYOUT_INFORMATION_EX *pdg = (DRIVE_LAYOUT_INFORMATION_EX *)new BYTE[dwDriverLayoutInfoExLen];
SecureZeroMemory(pdg, dwDriverLayoutInfoExLen);
pdg->PartitionStyle = PARTITION_STYLE_MBR;
pdg->PartitionCount = 1;
pdg->Mbr.Signature = 1;
pdg->PartitionEntry[0].PartitionStyle = PARTITION_STYLE_MBR;
pdg->PartitionEntry[0].StartingOffset.QuadPart = 1048576;
pdg->PartitionEntry[0].PartitionLength.QuadPart = lgPartitionSize.QuadPart * 200;
pdg->PartitionEntry[0].PartitionNumber = 1;
pdg->PartitionEntry[0].RewritePartition = TRUE;
pdg->PartitionEntry[0].Mbr.PartitionType = PARTITION_NTFT; // PARTITION_IFS (NTFS partition or logical drive)
pdg->PartitionEntry[0].Mbr.BootIndicator = TRUE;
pdg->PartitionEntry[0].Mbr.RecognizedPartition = 1;
pdg->PartitionEntry[0].Mbr.HiddenSectors = 32256 / 512;
// Partition a disk
bResult = DeviceIoControl( hDevice, // device to be queried
IOCTL_DISK_SET_DRIVE_LAYOUT_EX, // operation to perform
pdg, sizeof DRIVE_LAYOUT_INFORMATION_EX, //output buffer
NULL, 0, // no output buffer
&junk, // # bytes returned
NULL
);
bResult = DeviceIoControl( hDevice,
IOCTL_DISK_UPDATE_PROPERTIES,
NULL, 0, NULL, 0, &junk, NULL);
PARTITION_INFORMATION_EX dskinfo;
PARTITION_INFORMATION_MBR mbrinfo;
mbrinfo.PartitionType = PARTITION_NTFT;
mbrinfo.HiddenSectors = (32256 / 512);
mbrinfo.BootIndicator = 1;
mbrinfo.RecognizedPartition = 1;
dskinfo.PartitionStyle = PARTITION_STYLE_MBR;
dskinfo.StartingOffset.QuadPart = 1048576;//0;
dskinfo.PartitionLength.QuadPart = lgPartitionSize.QuadPart * 200;
dskinfo.PartitionNumber = 1;
dskinfo.RewritePartition = TRUE;
dskinfo.Mbr = mbrinfo;
bResult = DeviceIoControl( hDevice, // device to be queried
IOCTL_DISK_SET_PARTITION_INFO_EX, // operation to perform
&dskinfo, sizeof(dskinfo), // output buffer
NULL, 0, // no output buffer
&junk, // # bytes returned
NULL
);
除了最后一个带有错误 1 的代码(即不正确的函数)之外,所有的调用DeviceIoControl()
都成功了。IOCTL_DISK_SET_PARTITION_INFO_EX
这可能是什么原因?
如果我们注释掉最后一个调用,磁盘被初始化为原始磁盘,但这不符合我们的要求。
以上示例仅适用于 MBR 分区样式。我们找不到 GPT 的任何样本,...样式。如果有人知道,请给一个链接。