ZFS (also ext3 snapshots)

[Michael ODonnell]

Further adventures of ZFS, GPL and friends:

   http://kerneltrap.org/node/8066

Also, did I hear somebody at last night's meeting refer to
(what sounded like) an "ext3 snapshot" capability?  If so,
is that anything beyond copying the raw bits of an active
ext3 filesystem out from under a running kernel and hoping
that journal-replay will keep it consistent?