3.1.4.3.7.4 CLUSCTL_CLUSTER_CHECK_VOTER_DOWN

The CLUSCTL_CLUSTER_CHECK_VOTER_DOWN cluster control code queries the server for whether taking the specified quorum resource offline or stopping the specified active node will cause the cluster to lose quorum.

Protocol version 2.0 servers do not support this control and MUST fail this method by using error code 0x00000001 (ERROR_INVALID_FUNCTION).

The client MUST provide either a resource or node ID, as specified in sections 3.1.4.2.15 and 3.1.4.2.49 respectively, as a null-terminated Unicode string in the buffer that is designated by lpInBuffer. The server MUST fail this method by using ERROR_INVALID_PARAMETER if the resource specified is not the one currently configured as the quorum resource, as specified in section 3.1.1.10, or if the node ID does not correspond to the ID of a configured node in the cluster.

 After successful completion of the method, the server MUST write a 32-bit integer containing one of the values from the CLUSTER_QUORUM_VALUE enumeration (as specified in section 2.2.2.10) to the buffer that is designated by lpOutBuffer, indicating whether quorum will be lost. If the lpOutBuffer buffer is not large enough to accommodate the enumeration value, error 0x000000EA (ERROR_MORE_DATA) MUST be returned.

The server SHOULD accept a CLUSCTL_CLUSTER_CHECK_VOTER_DOWN cluster control code request if its protocol server state is read-only, and the server MUST accept the request for processing if it is in the read/write state, as specified in section 3.1.1.

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