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STATUS_VOLSNAP_PREPARE_HIBERNATE
The volume-shadow-copy path is still preparing the volume
STATUS_VOLSNAP_PREPARE_HIBERNATE describes an in-progress hibernation preparation state associated with a specific volume. The stock message contains a formatted volume name, which makes raw message text unsuitable as a stable meta description; the important semantic is that preparation has started and has not yet reached the ready marker.
Volume shadow copy work can involve coordination across storage components. Microsoft documents VSS as a framework in which requesters, writers and providers participate in a snapshot lifecycle, including I/O coordination. That does not mean every hibernation delay is a VSS writer failure: this NTSTATUS comes from the VolSnap status family and must be placed in the actual storage timeline.
Pair this state with STATUS_VOLSNAP_HIBERNATE_READY or the first later failure. If preparation remains stuck, inspect volume and storage events rather than retrying hibernation blindly. A repeated progress message is evidence of where the transition is waiting, not proof of the underlying reason.
What to inspect
- The volume identified by the original formatted status message and its storage topology.
- Elapsed time from prepare state to ready state or first error.
- Concurrent snapshot, backup, storage-path, or volume activity around the hibernation attempt.
References
- Microsoft: Volume Shadow Copy Service
- Microsoft: VSS_SNAPSHOT_CONTEXT
- Microsoft Open Specifications: NTSTATUS values
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