3 ms·

> journalling filesystems Journalling only protects the filesystems own structures, not user data.

• wtallis 7y ago
  And that's all that consumers need to have protected. Preventing catastrophic data loss is adequate for consumers. Consumers don't need to ensure complete transactional consistency for writes that are in-flight at the time of an unexpected power loss; they are conditioned to expect minor loss or corruption of data that is actively being modified when power is lost. Having at most a few MB of data at risk during the rare slices of time where a consumer PC is actively writing to the disk is an acceptable risk for these use cases.