VDS_PROVIDER_LBSUPPORT_FLAG enumeration (vds.h)

[Beginning with Windows 8 and Windows Server 2012, the Virtual Disk Service COM interface is superseded by the Windows Storage Management API.]

Specifies the set of valid flags for indicating which load balance policies a hardware provider supports.

Syntax

typedef enum _VDS_PROVIDER_LBSUPPORT_FLAG {
  VDS_LBF_FAILOVER,
  VDS_LBF_ROUND_ROBIN,
  VDS_LBF_ROUND_ROBIN_WITH_SUBSET,
  VDS_LBF_DYN_LEAST_QUEUE_DEPTH,
  VDS_LBF_WEIGHTED_PATHS,
  VDS_LBF_LEAST_BLOCKS,
  VDS_LBF_VENDOR_SPECIFIC
} VDS_PROVIDER_LBSUPPORT_FLAG;

Constants

 
VDS_LBF_FAILOVER
The provider supports using one primary path with the other paths being backup paths.
VDS_LBF_ROUND_ROBIN
The provider supports using all paths in round robin fashion.
VDS_LBF_ROUND_ROBIN_WITH_SUBSET
The provider supports using primary paths in round robin fashion. The backup paths are used if all of the
primary paths fail.
VDS_LBF_DYN_LEAST_QUEUE_DEPTH
The provider supports using the path with the least number of active requests.
VDS_LBF_WEIGHTED_PATHS
The provider supports using the path with the least weight (each path is assigned a weight).
VDS_LBF_LEAST_BLOCKS
The provider supports using the path with the least blocks.
VDS_LBF_VENDOR_SPECIFIC
The provider supports a vendor-specific policy.

Remarks

Note  Additional constants might be added to the VDS_PROVIDER_LBSUPPORT_FLAG enumeration in future Windows versions. For this reason, your application must be designed to gracefully handle an unrecognized VDS_PROVIDER_LBSUPPORT_FLAG enumeration constant.
 

Requirements

   
Minimum supported client Windows Vista [desktop apps only]
Minimum supported server Windows Server 2003 R2 [desktop apps only]
Header vds.h

See also

VDS Enumerations