It's not fundamentally reliable either. From: http://en.wikipedia.org/wiki/Hierarchical_File_System http://en.wikipedia.org/wiki/Hierarchical_File_System "Th

It's not fundamentally reliable either. From: http://en.wikipedia.org/wiki/Hierarchical_File_System http://en.wikipedia.org/wiki/Hierarchical_File_System "The Catalog File, which stores all the file and directory records in a single data structure, results in performance problems when the system allows multitasking, as only one program can write to this structure at a time, meaning that many programs may be waiting in queue due to one program "hogging" the system.[2] It is also a serious reliability concern, as damage to this file can destroy the entire file system." See also: https://news.ycombinator.com/item?id=7876217 https://news.ycombinator.com/item?id=7876217