I have been dumping several machines to local 8mm drives. Dump writes to
these drives at about 4mbps. To conserve resources I have been trying
to dump to the same model drive on a remote machine using the <hostname>:
notation. When I do this dump writes at about .5mbps.
Sounds like either a busy net or a shoeshining drive. I'd run a tcpdump
and watch the packets go by and see if they're getting squashed somewhere.