I'd like some clarification on the use of fssconfig(8) with FFS.  The usage
is:

fssconfig [-cxv] device path backup [cluster [size]]

What value is the 'backup' argument?

For example, what is the difference between "fssconfig fss0 / /" and
"fssconfig fss0 / /.snapshot"?  They both appear to configure a persistent
snapshot with fss0, and can be mounted anywhere (e.g., "mount /dev/fss0
/foobar" works, as does "mount /dev/fss0 /.snapshot").

Does the 'backup' argument just simply need to be SOMETHING so that fss can
determine which filesystem the snapshot is for?

An example of how to configure a snapshot of a filesystem for use with 'tar'
(or access in a NetApp-style manner) would be most welcome.

	ScottE