04 Jul 15 21:42, you wrote to Sean Dennis:   
      
    SD>>> I'd recommend using JFS for any drive larger than 64GB...which is   
    SD>>> HPFS' limit.   
      
    EV>> Thanks for the 'heads up'.   
    EV>> Now to look up JFS, Thanks!   
      
   generally speaking, modern operating systems use IFSes... Installable File   
   Systems... that means that FAT, HPFS, NTFS, JFS and numerous others may be   
   added to a system and used on a drive or partition...   
      
   FAT is "File Allocation Table" and comes in three flavours that i know of...   
   originally FAT12 (12bit) was used and based on modified QDOS file storage   
   format... https://en.wikipedia.org/wiki/File_Allocation_Table#FAT12  then came   
   the more commonly known FAT16 (16bit) which initially increased the number of   
   clusters to 65524 which is almost the maximum size of an unsigned integer (0   
   to 65535)... https://en.wikipedia.org/wiki/File_Allocation_Table#FAT16  after   
   that, FAT32 came out with DOS 7.1 and win95osr2... it brought 32bit cluster   
   values which, again, increased available storage size capabilities...   
   https://en.wikipedia.org/wiki/File_Allocation_Table#FAT32   
      
   HPFS is "High Performance File System"... it uses B+ Trees to store the   
   locations of the parts of a file instead of a simple allocation table...   
   B-Trees and their derivatives are quite fast at finding data stored on them...   
   basically, visualize these trees as exactly that... a tree with branches... a   
   piece of data, k, is stored on a leaf some where in the tree... when looking   
   for k, we start at the root and decide if we take the left branch or the right   
   branch to get to the next node... at that node, we again decide if we take the   
   left branch or the right branch to get to the next node... eventually we end   
   up at the leaf that contain the data k which we are looking for...   
   https://en.wikipedia.org/wiki/High_Performance_File_System   
      
   NTFS is "New Technology File System" and is a modified version of HPFS... NTFS   
   came about after IBM and microsoft split up during the development of OS/2...   
   NTFS brought additional enhancements using advanced data structures and   
   offering additional capabilities like journaling, access control lists, quotas   
   and more... https://en.wikipedia.org/wiki/NTFS   
      
   JFS is "Journaling File System"... the biggest thing is that, like NTFS, it   
   has a journal of the operations performed... this journal is basically a log   
   file... if something happens, the journal can be replayed or rewound to redo   
   or remove transactions... this is similar to the journal that today's modern   
   databases use... JFS was originally introduced in 1990 with that year's   
   release of the AIX operating system used on "heavy iron" (aka main frames)...   
   JFS has been around for a long time and is now available on numerous other   
   operating systems... OS/2 and OS/2's eCS (eCommerce Station) being two as well   
   as now being GPL and available for linu... https://en.wikipedia.   
   rg/wiki/JFS_%28file_system%29   
      
   there are more installable file systems available... many of them are also   
   journal capable because of the huge safety factor and the ability to use the   
   journal to recover from problems... this is akin to running checkdsk and   
   hoping that everything can be recovered... journaling knows what was done and   
   that's where a rewind can be used to back up to a known good point and then   
   start to move forward again...   
      
    SD>> FWIW, Linux can also use JFS easily, so if you have an OS/2 drive   
    SD>> that's JFS formatted, Linux can read it easily and I -do- believe   
    SD>> that there's a JFS driver for Windows (I'll need to look that up).   
      
    EV> I've not got around to looking up that JFS stuff yet.   
      
    EV> Blessed are those who run around in circles because they shall be   
    EV> known as wheels, I'm a BIG WHEEL here.   
      
   hahaha... remember, too, that "spinning rust", as hard drives are lovingly   
   know as today, is also a set of wheels going round and round ;)   
      
   )\/(ark   
      
   ... Quit eating veal and cheese and duck livers you evil sick humans.   
   ---   
    * Origin:  (1:3634/12.73)