PPT Slide
250 Gbps
0.8 Gbps
8 Gbps
…………
1400 boxes
160 clusters
40 sub-farms
12 Gbps*
480 Gbps*
3 Gbps*
1.5 Gbps
100 drives
12 Gbps
5400 disks
340 arrays
……...
LAN-SAN routers
LAN-WAN routers
CMS Offline Farm
at CERN circa 2006
Les Robertson for Monarc study- april 1999
tapes
0.8 Gbps (daq)
0.8 Gbps
5 Gbps
disks
processors
storage network
storage network
farm network
* assumes all disk & tape traffic on storage network
double these numbers if all disk & tape traffic through LAN-SAN router
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