IVdsLun::QueryHints method (vdshwprv.h)

Article
02/09/2023

[Beginning with Windows 8 and Windows Server 2012, the Virtual Disk Service COM interface is superseded by the Windows Storage Management API.]

Returns the hints currently applied to the LUN.

Syntax

HRESULT QueryHints(
  [out] VDS_HINTS *pHints
);

Parameters

[out] pHints

A pointer to the returned LUN hints. See the VDS_HINTS structure.

Return value

This method can return standard HRESULT values, such as E_INVALIDARG or E_OUTOFMEMORY, and VDS-specific return values. It can also return converted system error codes using the HRESULT_FROM_WIN32 macro. Errors can originate from VDS itself or from the underlying VDS provider that is being used. Possible return values include the following.

Return code/value	Description
VDS_E_PROVIDER_CACHE_CORRUPT 0x8004241FL	This return value signals a software or communication problem inside a provider that caches information about the array. Use the IVdsHwProvider::Reenumerate method followed by the IVdsHwProvider::Refresh method to restore the cache.
VDS_E_OBJECT_DELETED 0x8004240BL	The LUN object is no longer present.
VDS_E_OBJECT_STATUS_FAILED 0x80042431L	The LUN is in a failed state and is unable to perform the requested operation.
VDS_E_ANOTHER_CALL_IN_PROGRESS 0x80042404L	Another operation is in progress; this operation cannot proceed until the previous operation or operations are complete.
VDS_E_NOT_SUPPORTED 0x80042400L	This operation or combination of parameters is not supported by this provider.

Remarks

Callers can specify hints by passing in the pHints parameter to the IVdsSubSystem::CreateLun method when creating a LUN or by using the IVdsLun::ApplyHints method to apply a set of new hints to an existing LUN.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Target Platform	Windows
Header	vdshwprv.h
Library	Uuid.lib