ZFS raid write performance?

[Quartz]

> Writes over NFS 3 are synchronous. Writes over CIFS/Samba are likely
> not.

> write performance with multiple
> clients.

> Finally, single GigE is _slow_.


I realize I've left out some possibly critical information.

This box is a dump space that needs to receive files from widely mixed 
"clients" (*nix/Win/Mac/desktop/laptop/etc) across a LAN, so the file 
share software is Samba and the client machines will be connecting with 
(at most) a single GigE.

Dunno if that changes anything.