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Datafeed Redundancy?



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Anyone have a good rationale for choosing two real-time datafeeds
(equities/futures) for best data source/feed redundancy?  (i.e. one internet
feed and one satellite feed from different vendors).  I'm not worried about
which is 10 seconds faster in their quotes but rather if there is more than
one path from an exchange or more than one wholesaler which provide quotes
to the retail data vendors.

I already have redundant phone lines plus cellular, uninterruptible power
supplies, backup generator, etc. but want to achieve a higher level of data
availability by utilizing two maximally separated data sources and feeds.

Also, is there any discount in exchange fees if you are an individual trader
who has data service from two separate vendors for redundancy purposes only
or do you have to pay double the full exchange fees?

Any info would be appreciated.

Chris Saunders
chris_saunders@xxxxxxx