> I feel I should stress this is not just a performance issue, simple
> operations take hideously long, and some large ones fail completely. dd
> from /dev/zero to a file took 13 minutes, before the process crashed
> after about four megs.
Perhaps it would help to tcpdump a session with a Linux client talking
to the Linux server, then repeat the same operations with the Sun
client. Something is very wrong for operations to be taking that long.