I want to construct samba server using LVS.

For test, I made it with one director and one real server. I choosed
direct-routing connection and round-robin scheduling.

I used iozone for benchmark, and it showed that the throughput of
upload is only the half of the throughput of download. I guess the
reason is that all data to be uploaded have to pass through director,
while data are transferred from real server to client directly when
they are downloaded.

Can I make the data move from client to real server directly? Any
comment would be appreciated.