The standard AmigaDOS file system (OFS) has always had problems. There are two primary difficulties :-
Commodore tried to improve the performance of their file system a number of times. WorkBench 1.3 added the Fast File System (FFS), and now, with WorkBench 3.1, we have the Fast File System with directory caching (FFS-DC). This makes directory scan faster, but writing to disk and directory operations, like delete and rename, are slower than ever.
These problems have been addressed by PFS-2 along with a large number of other inefficiencies to produce a new de facto standard filing system for your Amiga.
The improvements over FFS in both speed and data security are substantial.
PFS-2 was originally developed by Michiel Pelt and released as shareware under the name PFS (Professional File System). This under went a major change before being released as AFS (Ami-File Safe). Fourth Level Developments Ltd (FLD) were the sole distributor. AFS became quite popular. Unfortunately AFS was let down by FLD who have now lost the rights to it. The author has fixed the few bugs that remained, improved it and is re-releasing it as PFS-2. The floppy version will still be called PFS.
PFS-2 has the following performance characteristics :-
Note that the harddisk version is NOT compatible with the harddisk shareware versions of PFS.