DSM_QuerySupportedLBPolicies_V2 structure (mpiodisk.h)

The DSM_QuerySupportedLBPolicies_V2 structure is used to query the list of load balance policies that are supported on the LUN. It is basically the same as the DSM_QuerySupportedLBPolicies except that it passes back the supported policies as an array of DSM_Load_Balance_Policy_V2 structures instead of DSM_Load_Balance_Policy structures. The caller must direct the WMI call for querying to a pseudo-LUN that is addressed by the WMI instance name that corresponds to the pseudo-LUN. All DSMs must register and implement this class, even if they do not support any load balance policies for the devices they control.

Syntax

typedef struct _DSM_QuerySupportedLBPolicies_V2 {
  ULONG                      SupportedLBPoliciesCount;
  ULONG                      Reserved;
  DSM_Load_Balance_Policy_V2 Supported_LB_Policies[1];
} DSM_QuerySupportedLBPolicies_V2, *PDSM_QuerySupportedLBPolicies_V2;

Members

SupportedLBPoliciesCount

An unsigned 32-bitfield that returns the number of load balance policies that are supported for the LUN by the controlling DSM.

Reserved

Should be zero.

Supported_LB_Policies[1]

An array of DSM_Load_Balance_Policy_V2 structures, one for each of the supported load balance policies. The number of array elements will be the same as SupportedLBPoliciesCount. Each element of the array lists the supported load balance policy type. It is not expected that the element return path specifics.

Requirements