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From: Charles Forsyth <forsyth@terzarima.net>
Date: Wed,  6 Jul 2011 21:57:54 +0100
To: 9fans@9fans.net
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Subject: Re: [9fans] pcie for inter machine comms
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i tried a pair of (i think) ultrastor 34f (VESA Local Bus!) connected back to back
with Fast/Wide/Indifferent SCSI (one was host, the other was target)
between cpu server and file server and it was fine while it lasted.
when something went wrong, the target's bus would hang.
in fact, it also wasn't fine, because there was odd latency that made
it much less effective than the raw figures might have suggested.
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From: ron minnich <rminnich@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
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Subject: Re: [9fans] pcie for inter machine comms
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http://www.epn-online.com/page/new59551/pcie-switch-devices.html and
http://www.plxtech.com/products/expresslane/switches

This seems to come up with every new generation of a new bus, such as
pci or lately pcie. It has a lot of limits and, eventually, people
just go with a fast network. For one thing, it doesn't grow that big
and, for another, error handling can be interesting.

ron
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