Week of 061211

Open Actions from last week:
  • IN2P3 request to continue multi-VO test over weekend
  • Check in opm grid templates for reference to prod-grid-cern-admins (James) - DONE
  • Grid service contract type check (and change) (James) - In Progress
  • follow up errors with GSSDATLAS (James/Simone) - In Progress
  • up high load limit on rb113 (Yvan)

Chair: H.Renshall

Gmod: Antonio Retico

Smod: Miguel dos Santos

Monday:

Log: Nothing

New Actions: Short 1 hour stoppage of Atlas and CMS stagers at 9.45 to check for corruption.

Discussion: GSSDATLAS stopped multi-VO transfers to IN2P3 before IN2P3 requested the tests continue. There were again SRM problems in IN2P3 Friday evening then CMS Castor rmmaster had a meltdown on Saturday. Result was only some dteam transfers over the weekend.

Tuesday:

Log: ALICE reaching 55 MB/s to FZK and 100 MB/s to IN2P3, CMS reaching 150 MB/s to IN2P3 but GSSDATLAS only 20 MB/s. Periodic dips to IN2P3 put down to automated cleaning.

New Actions: CASTOR name server will be down tomorrow from 08.30 to 10.30.

Discussion: CMS could start to FZK. HRR will check if GSSDATLAS can. All CMS data goes to the tape channel as this corresponds to prompt reconstruction output which is essentially raw data divided into physics streams.

Wednesday

Log:

New Actions: HRR to consult TB on the rb109 disk errors.

Discussion: Good overnight performance from multi-VO tests to IN2P3 with ALICE at 100 MB/s, Atlas at 100-150 and CMS steady at 100 MB/s. We need to understand the time variation for Atlas compared with CMS. Average during 24 hours was 250 MB/s compared with the target of 140. ALICE also sending 100 MB/s to FZK and Atlas is now encouraged to add in transfers to FZK to their normal disk and tape endpoints. CASTOR2 nameserver upgrade has started - should finish by 10.30. CMS are resolving a Phedex routing problem to FZK and during this morning will be moving their Phedex server from lxgate10 to the more reliable vocms01.

Thursday

Log:

New Actions:

Discussion:

Friday

Log:

New Actions:

Discussion:

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Topic revision: r6 - 2007-02-02 - FlaviaDonno
 
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