Database and filesystem share a lot similarity, but still have their own characteristics. To use database as a back-end for filesystem has some benefits, such a

Database and filesystem share a lot similarity, but still have their own characteristics. To use database as a back-end for filesystem has some benefits, such as reliable persistence, ACID transaction and etc. It reduces complexity to achieve durable storage which filesystem should deal with. Many filesystems are able to use DB as back-end, I also made a filesystem ZboxFS (https://github.com/zboxfs/zbox https://github.com/zboxfs/zbox) which can also use sqlite as underlying storage.