1. The INFN TIER1 Regional Centre
L. Gaido
INFN – Torino
GDB Meeting - Taipei, March 10th 2003

2. The INFN TIER1 Project Location: CNAF – Bologna
Multi-Experiment TIER1: ALICE, ATLAS, CMS, LHCb (+ VIRGO + CDF + BaBar).
Support to Tier2 and Tier3 Centers.
Resources: Assigned to Experiments on a Yearly Plan.
Usage by other countries will be regulated by MoU or Bilateral Agreements.
Authentication: Certificates (INFN CA + GRID) and/or Kerberos5.
Key role in Data Challenges (2002)
Strong collaboration with the Grid projects (DataGRID, DataTAG, INFN-GRID, GLUE)

3. Resources (march 2003) Type Description 14 dual 800Mhz 10K SPECint2000
Procom NAS
17 TB Raw RAID5
EIDE NAS
2.5 TB Raw RAID5
SCSI disks
2 TB Raw RAID5
FiberChannel disks
10.5 TB Raw RAID5
STK L180 library
3.6 TB / 8 TB (comp.)
LTO Drives
15 TB / 30 TB (comp.)
6 Switches (1/2U)
48 UTP FE + 2 FO GE
1 Switch (1.5 U)
24 UTP GE + 4 FO GE
1 Core Switch
32 FO GE
Netw.
288 UTP FE
24 UTP GE
48 FO GE
Capacity
Tapes
CPU
Disks
209 KSI2K
32 TB
15/30 TB

4. TIER1 Resources evolution
N.B: resources are allocated statically to the experiments

5. Farms 1U dual Pentium III e 4 clock: 800 MHz up to 2.2 GHz
2 disks 18 or 40 GB/Node
RAM: 512MB up to 2GB/Node
1 or 2 48FE + 2GE Switches per rack
Single TFT console via KVM
160 Dual CPU presently installed

6. TIER1 Resources (tapes)
Now:
- the tape library holds 180 tapes (15 TB without compression)
- interface to CASTOR available
Second half of 2003:
- new computing room  room and resources will double
- new tape library  2000 to 5000 tapes

7. CPU allocation (2002) KSI2000 week CDF GRID CNAF VIRGO LHCb CMS ATLAS
160
140
CDF
120
100
GRID
KSI2000 80
CNAF 60
VIRGO 40
LHCb 20
CMS
ATLAS
1/7/02
2/7/02
3/7/02
4/7/02
5/7/02
6/7/02
7/7/02
8/7/02
9/7/02
10/7/02
11/7/02
12/7/02
ALICE
week

8. Disk allocation (2002) CDF GRID TBytes TEST VIRGO LHCb CMS 1/1/0230
CDF 25 20
GRID
TBytes 15
TEST 10
VIRGO 5
LHCb
CMS
1/1/02
3/1/02
5/1/02
7/1/02
9/1/02
11/1/02
ATLAS
ALICE
Week

9. Experiment activities summary
ALICE
MonteCarlo production (2200 jobs) using Aliroot (12-18 h/Job) on 8 dual-CPU nodes.
ATLAS
About 30% of the 2002 italian summer production on 20 dual-CPU nodes.
CMS
Transatlantic production test (DataTAG) on 13 dual-CPU nodes.
LHCb
MonteCarlo production, 1 million events, (the activest site after CERN) on 45 dual-CPU nodes.
VIRGO
More than 4 TB of data archived on disk

10. Tier-1 resources (personnel)
A dedicated team (12 people) provides the services for the
Regional Center:
- general services (infrastructure, operating systems, security, storage, tape library and network)
- “application” services (CASTOR, LCFG, grid, application support, etc.)
The Tier-1 team will support LCG activities in coordination with
the grid teams (INFN-GRID, DataGrid, DataTAG, Grid.IT).

11. Networking Internal LAN on Gigabit Ethernet (F/O)
New GARR-G Backbone with 2.5 Gbps F/O lines already in place
CNAF- Tier1 access is now 1Gbps.
International Connectivity via Geant: 2.5 Gbps access in Milano and 2x2.5 Gbps Geant links with US (Abilene) already in place.

12. GARR-G Pilot Infrastructure
GEANT
34 Mbps PD
LNL
2.5 Gbps TO
155 Mbps MI
2.5 Gbps
2.5 Gbps
2.5 Gbps PI BO
TIER1
CNAF
2.5 Gbps
1 Gbps
2.5 Gbps
2.5 Gbps RM
Torino and Legnaro (LNL) are going to be connected to a GigaPOP

13. CNAF bandwidth utilization (march 7th.)

14. LCG
The INFN Tier-1 is participating to the LCG Pilot
Strong coordination among INFN Tier-1 and Tier-2 sites
with the goal of providing the same LCG “service” level
LCG Release 0 is being installed at CNAF/Tier-1 (today!)
Three Tier-2 prototypes (Legnaro, Milano and Torino) are
going to join the pilot soon
The INFN Tier-1 and Tier-2 sites will be part of the LCG
production testbed (LCG-1)