data storage limit
Tier 1 Jlab
Tier 2 Universities

100 megabytes/sec data acquisition
duty cycle 1/3
each data analyzed twice on averaged

1 petabyte/year raw per year
0.2 petabyte reconstructed per year
down by factor of 100 when get 4 vectors

5k bytes per event

Simulations much more expensive to generate
very unclear how many needed
(importance sampling)
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Gray
2001 $14M Petabyte 
2006 $1.4M Petabyte
2011 $140K Petabyte

X2 for RAID
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Glasgow in Hall B interested in PPDG
PPDG aimed at current experiments
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