IceFileSystem 1.13 released
IceFileSystem is 64bit disk filesystem supporting a high number of useful features, such as...
64bit file/partition/extent sizes (actually very close to 2^63 bytes).
No self imposed fragmentation of large files unless there is not enough
contigious space available.
All metadata on disk is checksummed.
This means any errors on disk will be detected a lot quicker.
Meta level jornalling. Journalling makes operations to disk atomic.
Hardlinks (directory and file), softlinks, notification, examine all,
record locking, file comments. Fully supported.
Supports almost any 2^x media sector sizes.
Filesystem layout on disk is not dependant on a specific underlying sector size.
Filesystem may however place data on disk so that it is optimal for the
sector size used.
Filesystem does not get slower for larger partitions (scales very well),
or when heavily fragmented.
No limit in # of files/dirs in partition/dirs.
Handles removable media.
Optional recycled dir.
Supports automatically truncated log files.
Supports filesystem logfile.
Wastes only 128k (and preallocates another 128k for meta space)
for filesystem administration data, regardless of partition size.
Dynamic handling of cache memory.
Memory is given back to system when not used.
More information
here