backup interrupt

Hi,

I try to backup with tina client on solaris 10 an UFS filesystem of 350gb on target tina server.

At some point the backup is interrupted by client peer.

I like first to increase the buffer cache.https://docs.oracle.com/cd/E19620-01/805-4448/z4000029233f/index.html.

What else can i do on solaris?

ndd /dev/tcp tcp_time_wait_interval

ndd /dev/tcp tcp_conn_req_max_q

ndd /dev/tcp tcp_xmit_hiwat

ndd /dev/tcp tcp_recv_hiwat

What values to give to the above?