journaling mechanisms

Journaling mechanisms are methods used to record changes in data, ensuring that information is saved securely and can be restored if something goes wrong. Think of it like a backup diary for your data. When changes happen, such as updates to a file or a database, these changes are logged in a separate journal. If there's a system failure or error, the system can refer to this journal to retrieve the last saved state, preventing loss of information and ensuring continuity. This process enhances data reliability and integrity in various systems, like databases and file storage.