"Log-structured file system" or "journaling file system" is often how such things are described. The notion being that the primary operation of interest is appe

"Log-structured file system" or "journaling file system" is often how such things are described. The notion being that the primary operation of interest is appending new data records, rather than modifying existing data. https://en.wikipedia.org/wiki/Log-structured_file_system https://en.wikipedia.org/wiki/Log-structured_file_system The use of the term "log" in some contexts implies concepts like lossy, unimportant, non-durable, etc. However, in the context of log-structured file systems or journaling file systems, the sense that's intended is append-only as a primitive, atomic, consistent, durable (replicated) operation.