On Sep 5, 2013, at 5:16 PM, Stan Halpin <[email protected]> wrote:

> One of the big issues for me will be how many ports of what modality. And one 
> thing I am quite unclear on: I know that if I daisy-chain FW400 and FW800 
> devices, I will limit throughput to the FW400 capacity.

This depends on two things: the specific FW implementation of the devices, and 
the order they appear in the chain. Devices fully implementing the spec will 
run at their rated IO speed even in a mixed chain setup, but almost all devices 
will operate at rated IO speed if the FW400 devices are at the tail of the 
chain, furthest from the port. 

I've measured this and found it to be true. 

G
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