Was reading a paper by Mr. McKusick wrt Soft Dependencies.  Part of that
paper discussed filesystem snapshots and how they could be used by
'dump' and 'fsck' and also by the vnd driver.

Does NetBSD support these things?  I wasn't able to find any reference
to it in the man pages for those utils, but being able to make snapshots
of live filesystems for backup purposes sounds like a really useful
concept.

Thanks.