On Tue, Jan 17, 2012 at 03:12:19PM -0800, Chuck Swiger wrote: > On Jan 17, 2012, at 2:09 PM, Jeremy Chadwick wrote: > > I do not have one of these boxes / am not familiar with them, but > > HyperTransport is an AMD thing. The concept is that it's a bus that > > interconnects different pieces of a system to the CPU (and thus the > > memory bus). > > While that was a nice picture, it's not related to the bus > architecture of a Sun 4500. :-) > > An X or E 4500 is a highly fault-tolerant parallel minicomputer with 8 > slots-- one was I/O, and you could put up to 7 CPU boards with dual > UltraSPARC processors-- you could hot-plug CPU boards and memory in > the event of a failure and keep the rest of the system up. They cost > a significant fraction of a million dollars circa y2k.
You're thinking E4500, which is as you describe. The X4500 is described here: http://en.wikipedia.org/wiki/Sun_Fire_X4500 Marcus _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
