CCRC'08 planning conference call *** NOW AT UTC-1 ***

Monday 29 Oct 2007, 17:00 → 18:00 Europe/Zurich

CERN (28-R-006 for those at CERN)

Mailing list: wlcg-ccrc08@cern.ch

Web archive: here

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(Leader code is 0111659).

17:00 → 17:05 Notes from last call

Notes of the CCRC'08 planning conference call of 22.10.07 Present: WLCG Service Coordination: H.Renshall (chair HR) GSSD: F.Donno (FD) Tier0: M.Coelho (Notes MC) WLCG/LHC-Ops link: absent MB: A.Aimar (AA) ATLAS: absent CMS: M.Kasemann (MK) ALICE: L.Betev (LB) LHCb: N.Brook (NB) ASGC: absent BNL: absent CNAF: L.dell'Agnello (LA) FNAL: absent FZK: A.Heiss (AH) IN2P3: F.Hernandez (FH) NDGF: absent NL-T1: M.vd.Sanden (MS) PIC: G.Merino (GM) RAL: A.Sansum (AS) TRIUMF: Absent - LHCB (N.Brook): Presented their CCRC'08 targets table. The Feb. to May data volume difference is because the May run has two extra weeks. Same rates but since it runs twice as long there is twice the data. The CCRC LHCb data can be scratched. - Atlas and Alice have yet to submit their targets but Alice (L.Betev) will do so by the end of this week. Alice emphasised they will be using their normal production resources as required for p-p running. - Atlas representative did not attend the meeting as he was involved in FDR planning during the current Atlas week so we expect input soon. - CMS (M.Kasemann) will use mixed mock and cosmics data. CMS knows how to separate these data at the SE level so that mock data can be dropped. - F.Donno will present next week the storage resource requirements being gathered from the experiments. - H.Renshall pointed out a clarification email from Alice that Alice does not require SLC4 WMS and can run with SLC3. - PIC questioned LFC deployment for LHCB. Although 3D streams are being replicated to PIC there is no LFC front-end deployed. They asked if they should deploy the current version or the next version where UID/GID is also replicated from CERN ? N.Brook will check but first answer is that PIC should wait. - H.Renshall reviewed the delivery schedule of the explict software requirements. An unknown is that for the fully functional glexec but no experiments are requiring this. R.Trompert pointed out that NL-T1 has now announced Nov 19 as the date for it's dcache 1.8 migration. - A.Aimar presented his first draft of the ccrc'08 milestones and is now awaiting reactions from sites and experiments. - Next week ATLAS and CMS will be visiting ASGC.

17:05 → 17:20 Review of experiment Resource Requirements for February run

17:20 → 17:30 Update on Production Delivery Schedule for Explicit Requirements

17:30 → 17:40 Actions for next meeting

• Minutes from this - 29 Oct - meeting are attached above
• "Critical Services" lists:
  • CMS: wiki

Notes of the CCRC'08 planning conference call of 29.10.07 Present: WLCG Service Coordination: H.Renshall (chair HR) GSSD: F.Donno Tier0: M.Coelho (Notes MC) WLCG/LHC-Ops link: absent MB: A.Aimar (AA) ATLAS: absent CMS: absent ALICE: L.Betev (LB) LHCb: N.Brook (NB) ASGC: absent BNL: absent CNAF: absent FNAL: absent FZK: A.Heiss (AH) IN2P3: F.Hernandez (FH) NDGF: absent NL-T1: M.vdSanden (MS) PIC: G.Merino (GM) RAL: D.Ross (DR) TRIUMF: Absent Notes: Replies on data rates for the February run have now been received from all except ATLAS. FD has circulated the experiments the questions of how much if any of the February data is to be kept and if the temporary and permanent storage from the run can be taken out of the existing experiment resource planning or needs to be added to them. So far we know that CMS and ALICE will keep the detector parts of the February runs and LHCb will keep none but need extra resources during the run. The fractions to be kept are not yet known. Alice (LB) queried sites on how to separate real data from mock data while still using the same SRM endpoint. This still needs to be checked. At the Tier-0 MCS proposed different directories with different 'file classes' should be used. AA will send an updated version of the milestone plan. Reactions should happen this week and be reviewed at the pre-GDB Face2Face meeting. Experiments are asked to provide a list of critical services following the CMS model - see twiki: Next weeks meeting will be the pre-GDB Face-to-Face from 13.00 to 16.00 in the IT Auditorium on 6 November. See the agenda at http://indico.cern.ch/conferenceDisplay.py?confId=22709