[clue-tech] filesystem copy

[David L. Willson]

I want to copy an entire ext3 filesystem, which includes lots of
hard-links, to another drive.  I use a 500GB volume to maintain daily
copies of a 320GB volume, where every unchanged file is actually a
hard-link to the file from the day before (single-instance storage).  I
want to replicate that volume to another 500GB volume without turning
each hard-link into a file on the target, and without rewriting the
entire drive every time.  Ideas?