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Windows Driver Kit DDI reference (ns-ntddstor-_storage_diagnostic_data)

STORAGE_DIAGNOSTIC_DATA structure

Description

STORAGE_DIAGNOSTIC_DATA describes diagnostic data about the storage driver stack. It is provided in the output buffer of an IOCTL_STORAGE_DIAGNOSTIC request.

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`

Specifies the Diagnostic data buffer.

STORAGE_DIAGNOSTIC_DATA - NtDoc