IVdsLunMpio::SetLoadBalancePolicy 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[Beginning with Windows 8 and Windows Server 2012, the Virtual Disk Service COM interface is superseded by the Windows Storage Management API.]
Sets the load balance policy on the LUN.
Syntax
HRESULT SetLoadBalancePolicy(
VDS_LOADBALANCE_POLICY_ENUM policy,
VDS_PATH_POLICY *pPaths,
LONG lNumberOfPaths
);
Parameters
policy
The load balance policy enumerated by the
VDS_LOADBALANCE_POLICY_ENUM enumeration.
pPaths
A pointer to an array of members of the VDS_PATH_POLICY structure that contain the path-specific policy information.
lNumberOfPaths
The number of members of the VDS_PATH_POLICY structure in the array pointed to by the pPaths parameter.
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 |
|---|---|
|
The load balance policy was successfully set. |
|
The cache of the provider is corrupted. This indicates a software or communication problem inside a provider that caches information about the attached devices. The caller can use the IVdsHwProvider::Reenumerate method followed by the IVdsHwProvider::Refresh method to restore the cache. |
|
The LUN object is no longer present. |
|
The LUN is in a failed state and is unable to perform the requested operation. |
|
Another operation is in progress. This operation cannot proceed until previous operations are complete. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2003 R2 [desktop apps only] |
| Target Platform | Windows |
| Header | vdshwprv.h |