1. Brief introduction about “Grid at LNS”
Antonello Anzalone
INFN-LNS
Grid Open Day al LNS dell’INFN
Catania,

2. Outline Architecture overview Cluster grid LNS
Cluster grid COMETA at LNS
Catania, Grid Open Day al LNS dell’INFN,

3. Architecture overview
1 Gb (optical fiber)
Grid
COMETA
(CT.INFN)
GARR
100 Mb (optical fiber)
Computing center of LNS
Router
Grid
COMETA
Grid
LNS
100 Mb (copper)
Firewall
Main Switch
Switch LNS
Switch LNS
Switch LNS
Catania, Grid Open Day al LNS dell’INFN,

4. Cluster grid LNS Worker Node Worker Node Worker Node Worker Node
User Interface 1
Computing Element 1
2 CPUs Intel Xeon GHz
RAM 2 GB
Scientific Linux CERN 3.0.8
Storage Element 1
Hard Disk 500 GB
Worker Node
Worker Node 5
Worker Node
4 applications on every node
(20 contemporaneous jobs)
Worker Node
Worker Node
Catania, Grid Open Day al LNS dell’INFN,

5. Cluster grid COMETA at LNS
Computing Element
Scientific Linux CERN (32 bit) 1
CPU Dual-Core AMD Opteron (tm) 2218
RAM 8 GB
Worker Node
Worker Node
Scientific Linux CERN 4.4
(64 bit)
4 applications on every node (108 contemporaneous jobs) 27
Worker Node
Worker Node
Worker Node
Catania, Grid Open Day al LNS dell’INFN,

6. Any Questions ? Thank you very much for your kind attention!
Catania, Grid Open Day al LNS dell’INFN,