The Posix-Breaking Party that the author describes could be implemented by using any COW file system for the backing store. For example, the new SCSI Unmap supp

The Posix-Breaking Party that the author describes could be implemented by using any COW file system for the backing store. For example, the new SCSI Unmap support in ZFS: http://gdamore.blogspot.com/2011/03/comstar-and-scsi-unmap.html http://gdamore.blogspot.com/2011/03/comstar-and-scsi-unmap.h...