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VDS_E_NO_EXTENTS_FOR_VOLUME
VDS_E_NO_EXTENTS_FOR_VOLUME This HRESULT describes a broken relationship between a volume and the disk extent map. Data extents returned by IVdsDisk::QueryExtents can carry a volume identifier linking the disk region to the volume above it. A VDS volume with no discoverable extents cannot be mapped to underlying storage in the normal way.
What the VDS state means
This is not the same as a zero-length file or an empty file system. VDS volumes are storage objects built from extents and, for dynamic volumes, plex/member topology. If the provider reports a volume but no extents, the object model is inconsistent or incomplete and capacity operations cannot safely infer where the volume resides.
Diagnostic focus
- Enumerate all disks in the containing pack and query their extents, matching data-extent volume IDs against the target volume GUID.
- Check for missing disks, a foreign/incomplete pack, or provider cache errors that could hide the member holding the volume extents.
- Query volume plexes and member state; the absence of an extent map should not be replaced with guesses based on drive letters.
- Do not extend or delete the volume until the provider can produce a coherent volume-to-extent relationship.
Technical references
MS-VDS error codes · IVdsDisk::QueryExtents · IVdsVolume · IVdsVolumePlex · IVdsPack
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