STORAGE_DIAGNOSTIC_DATA structure (ntddstor.h)
STORAGE_DIAGNOSTIC_DATA describes diagnostic data about the storage driver stack. It is provided in the output buffer of an IOCTL_STORAGE_DIAGNOSTIC request.
Syntax
typedef struct _STORAGE_DIAGNOSTIC_DATA {
ULONG Version;
ULONG Size;
GUID ProviderId;
ULONG BufferSize;
ULONG Reserved;
UCHAR DiagnosticDataBuffer[ANYSIZE_ARRAY];
} STORAGE_DIAGNOSTIC_DATA, *PSTORAGE_DIAGNOSTIC_DATA;
Members
Version
Version of this structure. Set to sizeof(STORAGE_DIAGNOSTIC_DATA).
Size
Specifies the whole size of the structure and the associated data buffer, in bytes.
ProviderId
Specifies the GUID of a diagnostic data provider.
BufferSize
The driver should set BufferSize as follows:
- If the request is successful, set with the returned buffer size of DiagnosticDataBuffer.
- If the request failed because of buffer too small, set with the required buffer size for a DiagnosticDataBuffer needed by the provider.
- If the request failed for any other reason, clear to zero.
Reserved
Reserved for future use.
DiagnosticDataBuffer[ANYSIZE_ARRAY]
Specifies the Diagnostic data buffer.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10, version 1709 |
| Header | ntddstor.h |