FSCTL_QUERY_STORAGE_CLASSES IOCTL (winioctl.h)
Retrieves the storage tiers defined for a volume that supports data tiering.
To perform this operation, call the DeviceIoControl function with the following parameters.
BOOL DeviceIoControl(
(HANDLE) hDevice, // handle to device
FSCTL_QUERY_STORAGE_CLASSES, // dwIoControlCode
(LPDWORD) lpInBuffer, // input buffer
(DWORD) nInBufferSize, // size of input buffer
(LPDWORD) lpOutBuffer, // output buffer
(DWORD) nOutBufferSize, // size of output buffer
(LPDWORD) lpBytesReturned, // number of bytes returned
(LPOVERLAPPED) lpOverlapped // OVERLAPPED structure
);
Requirements
Requirement | Value |
---|---|
Minimum supported client | None supported |
Minimum supported server | Windows Server 2012 R2 |
Header | winioctl.h |