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To: pgerassi who wrote (215217)10/27/2006 10:49:56 AM
From: fastpathguruRespond to of 275872
 
Actually with DCA, I/O could be put in a string with two CPUs as end points.

I had been thinking about that too, as a way to make more effective use of Opteron's HTT links. The problem is that latency for the CPU-CPU communication would go up by a hop.

fpg



To: pgerassi who wrote (215217)10/27/2006 1:51:28 PM
From: PetzRespond to of 275872
 
Reminds me of Tandem, who invented the phrase "non-stop computing" to describe their fault-tolerant systems. Apparently HP acquired them, but it applies that phrase to its Integrity servers, which by their bus topology are anything but fault-tolerant. h20223.www2.hp.com

But you can overcome any weakness with enough redundancy and careful design. (=COST)

Petz


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