Grid Technology

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

DBCFCFGT

SAM Experiment Availability Reports

&SAM decomissioning status

Wojciech Lapka

IT-GT-TOM

WLCG Management Board, 20th March 2012

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

GT Status

• Experiments migrated to ACE– 1st February 2012

• ACE - flexibility– Computation algorithm– Topology definition

• Impact on monthly availability reports

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CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

GT Experiments - Topology sources

• Topology provided to SAM by VO feed• ALICE

– AliEn LDAP server

• ATLAS– ATLAS Grid Information SYstem (AGIS)

• CMS– CMS SiteDB

• LHCb– Dirac

3

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

GT Monthly Reports - changes

–Topology

–Site Naming

–Historical data

Presentation Title - 4

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

GT

5

Topology

s1 s4

s5

s2 s3

s6 s7

s8 sn

s1 s4

s5

s2 s3

s6 s7

s8 sn

SITE_1

LOGICALSITE

SITE_2

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

GT CERN-PROD: OPS

6

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

GT CERN-PROD: ALICE

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CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

GT CERN-PROD: ATLAS

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CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

GT CERN-PROD: CMS

9

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

GT Site Naming: LHCb

10

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

GT Historical availabilities

• February reports:– https://espace.cern.ch/WLCG-document-reposito

ry/ReliabilityAvailability/Tier-1/2012/tier1_reliab_0212/

• Q1 report (April) will show data for last 3 months

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CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

GT

SAM Decomissioning Status

12

CERN IT Department

CH-1211 Geneva 23

Switzerlandwww.cern.ch/

it

GT 2011

• WLCG MB, 8th February 2011

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Grid Technology Last chance to see old SAM UI

Questions?

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Grid Technology

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Grid Technology MyWLCG

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Grid Technology Apero

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