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ERROR_REMOTE_STORAGE_NOT_ACTIVE
The remote storage service is not operational at this time.
ERROR_REMOTE_STORAGE_NOT_ACTIVE is Win32 error 4351 (0x10FF) and belongs to Remote Storage service availability.
Where the result appears
- Recalling a file managed by legacy Remote Storage.
- Administrative operations against hierarchical storage.
- Backup software requesting migrated data.
- Service startup or recovery after storage infrastructure changes.
Likely causes
- The Remote Storage service is stopped or failed initialization.
- Required migration media or management components are unavailable.
- The feature was removed while offline files remain.
- Service dependencies or configuration are damaged.
Troubleshooting steps
- Record the relevant state and dependencies.
- Record managed volume and migration database state.
- Record service and storage event logs.
- Record availability of media libraries or remote tiers.
- Record whether affected files retain offline attributes.
What to verify
Verify whether the Remote Storage service is stopped or failed initialization. Check the relevant state and dependencies together with managed volume and migration database state.
A focused validation should recreate the relevant part of this situation: a server is restored without starting the Remote Storage service. All migrated files fail recall until the service database and media path are brought online. The negative case should leave the remote-storage service/database offline and confirm error 4351; the recovery case should restore only that dependency and verify recall without an unrelated configuration change.
Handling, retry, and recovery
Restore the owning service and its dependencies before recalling data. If the legacy feature is being retired, migrate content through a supported recovery plan rather than clearing offline attributes blindly.
Difference from nearby codes
ERROR_FILE_OFFLINE describes a particular file state; this code identifies the Remote Storage service itself as non-operational.
References
- Microsoft: System Error Codes (4000–5999) — reference for error 4351.
- Microsoft: Offline Files — reference for error 4351.
- Microsoft: File attributes — reference for error 4351.
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