The statvfs system call indicates the preferred block size of the filesystem. It is a very large value on zfs, for example. https://docs.python.org/2/library/s

The statvfs system call indicates the preferred block size of the filesystem. It is a very large value on zfs, for example. https://docs.python.org/2/library/statvfs.html#statvfs.F_BSIZE https://docs.python.org/2/library/statvfs.html#statvfs.F_BSI...