[rescue] Hardware failure

Nick B. nick at pelagiris.org
Sun Jul 23 11:26:57 CDT 2006


Take a look at Thumper (sun X4500).  It's exactly what should be done with
Opterons.  Bit short on I/O though, it does not max out any of the HT busses.
	Nick
On Sat, Jul 22, 2006 at 12:40:24PM -0400, Ian Viemeister wrote:
> On Sat, 22 Jul 2006, Charles Shannon Hendrix wrote:
> 
> > Right now, unless you can show me an example otherwise, all PCs with HT
> > are currently using HT as a frontside bus, with the CPU as master, and
> > several slave hosts on it, usually northbridge and southbridge.  My own
> > motherboard also puts SATA on HT.
> 
> Like these examples? (Block diagram on second page of each):
> ftp://ftp.tyan.com/datasheets/d_s4885_100.pdf
> ftp://ftp.tyan.com/datasheets/d_s4881_104.pdf
> 
> These at least split onboard I/O and PCI/PCI-e busses over two HT links,
> each attached to one CPU of a four socket board.  Neat thing about these
> boards is the two "external" HT links, to hookup a "daughterboard" (more
> like kid-sisterboard, really :-) that is basically a copy of the main
> motherboard, minus I/O -- four more CPU sockets, 16 more DIMM sockets.
> 
> Nice boards.  They max out at 8 sockets (16 cores with DC-8xx CPUs), and
> 128GB of RAM.
> 
> I'll grant you that I haven't seen a single or dual socket board with the
> same sort of HT configuration, though.
> 
> --Ian
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