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Event ID 12289 — Unexpected VSS error

VSS reported an unexpected error while creating or processing a snapshot. Correlate the full event with the backup and storage logs.

TopicIT resources → About 1 min read

VSS reported an unexpected error while creating or processing a snapshot.

Event source

Provider: VSS. Preserve the full message, HRESULT, volume and operation named in the event.

Possible causes

  • A snapshot provider or writer could not complete the operation.
  • Storage capacity, I/O or another dependency prevented snapshot creation.
  • The backup application and VSS operation need to be correlated at the same timestamp.

Checks to perform

  1. Match Event 12289 to the failed backup or snapshot operation and read the complete error.
  2. Record the writer state and shadow-storage associations with the following commands.
  3. Compare storage, provider and backup-product logs before changing configuration.
  4. Correct the confirmed component, repeat the affected job and validate recovery from the resulting backup.

Commands

vssadmin list writers
vssadmin list shadowstorage

Key takeaways

Interpret the event together with its provider, full message and timing. Storage or permission changes must follow the specific error; deleting snapshots is not a universal response.

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