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Anchor10180461018046 What Journaling Guarantees Anchor10145291014529In short, journaling guarantees file system consistency. Journaling prevents the directory hierarchy, file names, file metadata and cluster allocation information from becoming corrupted in case of an untimely interruption (such as a power failure or application crash). However, while journaling protects the integrity of the file system, it does not necessarily protect your data integrity (i.e., the file contents). For example, if the application crashes while a write operation is being performed, the data could end up only partially written on the media (see “Journaling and API level atomicity” on page 130page 152.).