What does HRESULT 0x8004256D (VDS_E_INVALID_SERVICE_FLAG) mean?

 
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VDS_E_INVALID_QUERY_PROVIDER_FLAG VDS_E_INVALID_VOLUME_FLAG

VDS_E_INVALID_SERVICE_FLAG

VDS_E_INVALID_SERVICE_FLAG means a service configuration or property mask contains unsupported VDS_SERVICE_FLAG bits. Service flags describe global VDS state and capabilities and must not be confused with provider, disk or volume flags.

Validate flags at the service boundary

  • Use the enumeration required by the exact service method or structure.
  • Log unknown returned bits but reject undefined bits in caller-supplied masks.
  • Do not copy flags between VDS_SERVICE_PROP and provider or storage-object requests.

An invalid flag is a caller or provider contract problem, not a transient storage-device condition. Refreshing disks will not change the validity of the bitmask. Correct the code or configuration that constructed it, then re-read service properties to verify the active service state.

Service properties · Service flags · IVdsService


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