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VDS_E_UNRECOVERABLE_ERROR
VDS_E_UNRECOVERABLE_ERROR is the failure HRESULT 0x80042419 (signed decimal -2147212263, unsigned decimal 2147755033). Its severity bit is set, the facility field is 4 (FACILITY_ITF), and the facility-specific code field is 0x2419.
VDS has entered a service-wide unrecoverable state
The Virtual Disk Service reports this HRESULT when an internal condition is severe enough that the service can no longer provide a trustworthy management view. The published contract explicitly says that the service must shut down. The immediate failure therefore concerns VDS availability and integrity, not merely one rejected disk operation.
Where the failure boundary lies
The important boundary is the VDS process itself. A format, import, online, offline, or provider call may be the operation that exposes the problem, but the result says the service cannot remain fully operational. It is stronger than VDS_E_INTERNAL_ERROR, which directs the caller to the event log without declaring shutdown mandatory, and stronger than a provider-scoped failure that leaves other providers usable.
Likely causes to separate
- Corruption or contradiction in service-maintained state prevents VDS from safely resolving objects and ownership.
- A lower layer returns data or notifications that violate assumptions required by the service core.
- A service component fails during a transition that cannot be rolled back while the existing process remains alive.
- Memory corruption, a defective provider, or an operating-system storage component fault leaves the process in an unknown state.
Evidence worth preserving
- Preserve the Application and System event log entries emitted immediately before shutdown, including provider GUIDs and embedded lower-level error codes.
- Record the original VDS method, target object ID, provider type, calling process, and whether the operation was synchronous or asynchronous.
- Capture service termination or restart events and note whether the service stopped itself or was terminated by the Service Control Manager.
- If reproducible, collect a crash dump or service diagnostic trace before repeatedly restarting the same failing workflow.
Diagnostic sequence
- Stop issuing additional configuration calls through existing COM interfaces; those references belong to a service instance that is no longer reliable.
- After VDS restarts, rebind to the service and enumerate providers and objects from scratch rather than reusing cached interface pointers or ordinal positions.
- Determine whether failure follows one provider or one device. A repeatable association narrows the investigation without redefining the HRESULT as a device-specific code.
- Compare the event immediately preceding shutdown with provider, controller, disk, Plug and Play, and Logical Disk Manager events from the same time window.
Retry and recovery
A retry is meaningful only after the VDS service has terminated and a new service instance has initialized. Even then, a blind immediate replay can trigger the same fatal path. First reconstruct object identity, confirm that disks and volumes have the expected state, and isolate any third-party hardware provider implicated by the logs. When the operation is destructive, require a fresh topology review before resubmission.
What this HRESULT does not establish
This code does not prove that user data or a filesystem is corrupt, and it does not identify the provider or driver that initiated the fatal chain. Conversely, a successful service restart does not prove that the underlying defect disappeared; it only restores a clean process state.
Practical example
A storage-management application requests a configuration change through a hardware provider. The provider sends inconsistent object relationships, VDS detects that its global object model can no longer be trusted, returns VDS_E_UNRECOVERABLE_ERROR, and shuts down. The application must discard every VDS object, wait for a new service instance, then re-enumerate before deciding whether the operation is safe to repeat.
Guidance for software and telemetry
Applications should treat this value as a session invalidation event. Log the service generation or connection epoch, fail all queued VDS work tied to that epoch, and force callers to reacquire objects. Mapping the HRESULT to a generic “try again” button hides the required shutdown boundary.
Official Microsoft references
- Microsoft: Virtual Disk Service common return codes
- Microsoft: MS-VDS protocol error codes
- Microsoft: Virtual Disk Service architecture and provider roles
- Microsoft: IVdsService interface
- Microsoft: using Virtual Disk Service
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