Thanks to Bill, Ted, George, and Seth for the quick response.  I see the
difference now.  LAN-free is actually TSM server free.  Server free is
TSM server and TSM client free backup.  I wish Tivoli made a better choice
of names.

Eliza

---------
Eliza Lau
Eliza Lau
Virginia Tech Computing Center
lau AT vt DOT edu

>
> Eliza,
>
> It may help if you think of LAN-free backup as client-to-device data
> movement, and server free backup as device-to-device data movement.
>
> In the case of LAN-free backup, the Storage Agent code (a stripped-down
> version of the TSM server) is running on the client, consuming memory and
> CPU resources when redirecting the data from disk to the SAN-attached
> tape.  The data does have to be channelled through the client, then (back)
> through the SAN to the tape in the shared library.
>
> Server-free backup would take the resources of the client almost entirely
> out of the picture; the client would only transfer the metadata across the
> LAN.  But we're not there yet...
>
> Ted
>