On Tue, 3 Jul 2001, James Mello wrote:
> So how is this different that snapshots? Why do you have to license it
> seperately if you could do this with VxFS natively? Is there something
> obvious that I'm missing?

Snapshots require a separate container for storage; checkpoints live in
the same device as the parent.

Snapshots are read-only; checkpoints can be read-only or read-write.

Snapshots are transient; checkpoints are persistent.

Snapshots are disposed of at unmount; checkpoints can be committed or
rolled back to, so any of the branches can be the new "main" data.

Snapshots are one-level -- though more than one can be in effect at a
time, all are based on a single parent for the file system; checkpoints
can have other checkpoints as parents.
-- 
ROGER B.A. KLORESE                                          rogerk AT QueerNet 
DOT ORG
PO Box 14309                                            San Francisco, CA 94114
"Go without hate. But not without rage. Heal the world."        -- Paul Monette