IVdsLunPlex::QueryHints method (vdshwprv.h)

[Beginning with Windows 8 and Windows Server 2012, the Virtual Disk Service COM interface is superseded by the Windows Storage Management API.]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 that are currently applied to the LUN plex.

Syntax

HRESULT QueryHints(
  [out] VDS_HINTS *pHints
);

Parameters

[out] pHints

Pointer to the returned plex 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 plex object is no longer present.
VDS_E_OBJECT_STATUS_FAILED
0x80042431L
The LUN plex 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 IVdsLunPlex::ApplyHints method to apply a set of new hints to an existing plex.

Note that calls to the IVdsLun::ApplyHints method can impact the plexes that contribute to the LUN. To view hints for the entire LUN, use the IVdsLun::QueryHints method.

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

See also

IVdsHwProvider::Reenumerate

IVdsHwProvider::Refresh

IVdsLun::ApplyHints

IVdsLun::QueryHints

IVdsLunPlex

IVdsLunPlex::ApplyHints

IVdsSubSystem::CreateLun

VDS_HINTS