Short: Smart Filesystem Author: John Hendrikx, Joerg Strohmayer Uploader: Joerg Strohmayer Type: disk/misc Version: 1.277 Requires: 68020 or better, AmigaOS 3.0 or better Architecture: ppc-amigaos >= 4.0.5; m68k-amigaos >= 3.0.0 Distribution: Aminet ------------------------------------------------------------ AmigaOS 3.x/m68k and AmigaOS 4/PPC Smart Filesystem developed by Joerg Strohmayer based on John Hendrikx' SFS 1.84, archive and documentation updates up to 1.236 by Raphael Pilarczyk. For updates check my SFS homepage http://strohmayer.org/sfs/ ------------------------------------------------------------ USE AT YOUR OWN RISK! ------------------------------------------------------------ For more information read the included documentation Introduction ------------ Smart Filesystem is a new filesystem for your Amiga. A filesystem's main purpose is to store files on a disk in such a way that they can be located and used quickly. How this is done is up to the filesystem. The way information is stored on your disk has a large impact on speed and space efficiency, and so these factors can vary a lot from filesystem to filesystem. Smart Filesystem was created to provide you with an alternative to the Fast Fileystem. Smart Filesystem makes more efficient use of your disk space (max speed with 512 bytes/block!), has better performance in most areas and will allow for new features never seen before in an Amiga filesystem. Features -------- o FAST seeking. Even in extremely large files. o FAST reading of directories. o FAST reading/writing of files. o FAST defragmentation routines (100% transparent built-in optimiser) o Disk space is used VERY efficiently. o Blocksizes of 512 bytes up to 32768 bytes are supported. (512 BYTES FOR BEST PERFORMANCE IN 99%) o The length of file and dir names can be 107 characters. The lenght of 'pathes' can be 255 characters (AmigaOS 3.x, unlimited in AmigaOS4). o Volumename can be 30 characters. o The length of comments can be 79 characters (like FFS) o The size of a file is limited to about 4 GB (DOSType 'SFS', several TB with DOSType 'SFS2'). o Support for partitions larger than 4 GB or located (partially) beyond the 4 GB barrier on your drive. There is support for the New Style Devices (NSD) and the 64-bit trackdisk commands (TD64) which support 64 bit access. o Supports partitions of up to 128 GB (DOSType 'SFS', for 'SFS2' partitions the limit is 1 TB, but it can be more depending on the blocksize, with 32KB/Block it's 64 TB). o Modifying data on your disk is very safe. Even if your system is resetted, crashes or suffers from powerloss your disk will not be corrupted and will not require long validation procedures before you will be able to use it again. In the worst case you will only lose the last few modifications made to the disk. o There is a built-in configurable read-ahead cache system which tries to speed up small disk accesses. This cache has as a primary purpose to speed up directory reading but also works very well to speed up files read by applications which use small buffers. o Supports Notification and ExamineAll. o Supports softlinks (hardlinks are not supported for now). o Using the SFSformat command you can format your SFS partition with case sensitive file and directory names. Default is case insensitive (like FFS). o There is a special directory which contains the last 350 (!) files which were deleted. (see sfsformat.txt) Unimplemented features ---------------------- o HardLinks o ACTION_LOCK_RECORD o ACTION_FREE_RECORD o ACTION_MAKE_LINK (soft links only at the moment)