GFS and SANs

[Jeff Macdonald]

Hi,
And now for something Linux related. Earlier this year Redhat released
GFS as GPL'd stuff. I understand that GFS is a distributed file system
with redundancy and all that. What I don't understand is what is meant
by SAN. I believe it stands for Storage Area Network. In some
documentation I've read it seems that a SAN is a box with disks and
high speed connectors to those disks. In some cases it seems to be a
collection of machines on a common high speed network that have disks
that look like a single entity. Come someone help explain what GFS is
and what is meant by SAN?

-- 
Jeff Macdonald
Ayer, MA