CDF Data Size in Run II
Data logging: 75 Hz for 2 years (2 inverse fb)
Add analysis data and data overlap: 520 KB
Reduced Physics Analysis Data set (PAD) = 60 KB/event
- hope to get ? 30KB with ROOT compression
Overall data set for Run II: ~1 PB = 1000 TB
Overall PAD size: ~200 TB
FNAL data storage (all data are at FNAL, at least!)
- 30 TB disk (PADs + robot cache)
- 1PB Emass tape robot (~100GB/tape)
200 physicists doing analysis at FNAL, about 20 at Pisa, but simple scaling don’t work (can’t have 3 TB disk + 100 TB robot in Pisa, data can not be parted among physicists).