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FAX status report

Ilija Vukotic

Computation and Enrico Fermi InstitutesUniversity of Chicago

US ATLAS Computing Integration and Operations MeetingApril 16, 2014

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Global Deployment Status

CloudT1s T2Ds T2

Done Total Done Total Done TotalCA 0 1 1 4 0 1US 1 1 5 6 1 2FR 0 1 2 8 0 6DE 1 1 7 9 2 5IT 1 1 3 3 1 1ES 0 1 0 4 0 2NL 0 2 1 2 1 9UK 1 1 8 10 2 7TW 1 1 - - 0 1ND 0 1 - - 0 3CERN 1 1 - - - -RU 0 1 - - - -Total 6 13 27 46 7 37

• SFU-LCG2 (CA cloud) joined– Direct dCache – Connected to xrd-

central• Mayor T1s missing

– CA –TRIUMF – good progress

– ES – pic – working with them

– FR – Lyon – progress stalled

– NL – Sara, Nikhef – no progress

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North American Redirectors

• Restructuring of the redirection tree in North America• Hosted at BNL; FAX operations team provides configuration

and operational support– atlas-xrd-us.usatlas.org

o North American region– atlas-xrd-east.usatlas.org

o -BNL, BU, Victoria, Scinet– atlas-xrd-central.usatlas.org

o MWT2, AGLT2, OU, SWT2– atlas-xrd-west.usatlas.org

o SLAC, TRIUMF, McGill, SFU

• Status and timeframe:– Hosts and configurations ready. Waiting for git repository’s

connection.

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Global SSB: most sites are stable

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US FAX status: past three months

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Operational• Network

saturation occurrence at FZK-LCG2

• ALICE analysis is suspect

• If it needs an analysis to find who/what is responsible, then the monitoring is inadequate.

FTS

XROOT

Throughput

Throughput Transfers finished

Transfers finished

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Cost Matrix - US

• Averaged over last week

DEFINITION: Rate in MB/s measured between WN and a FAX endpoint

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Failover Statistics – last two weeks

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Testing & Development

• New dCache redirector plugin developed– Provides simpler federating, improves efficiency and stability of

dCache endpoints.

• 100Gbps tests as soon as MWT2-BNL circuit available

• Testing overflow now the new test pilot is available

• Working with EOS on finding solution to a too many DDM endpoints issue

• Wei continuously testing using input files from analysis jobs.

• Restarting frameworks measuring and following IO characteristics of ATLAS data formats – in particular xAOD.

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Cost matrix

Yesterday Last 30 days

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EXTRA