What method can be used to protect logs on FortiAnalyzer?

The method of using RAID configuration to protect logs on FortiAnalyzer is effective because RAID (Redundant Array of Independent Disks) provides data redundancy and improved performance by distributing data across multiple disks. In a RAID setup, if one disk fails, the data can still be accessed from the other disks in the array, ensuring that logs are protected against hardware failures. This level of protection contributes to the integrity and availability of log data, making it less susceptible to data loss.

While regular backups, file encryption, and access control lists are also important for log protection, they serve different purposes. Regular backups help in recovering data after loss, file encryption secures data from unauthorized access, and access control lists manage permissions for users accessing the logs. However, RAID specifically addresses the physical reliability aspect of how logs are stored, which is why it is deemed a suitable method for protecting logs on FortiAnalyzer.