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Quarterly report

Quarterly report. London Tier 2 Quarter 1 2005 O Maroney. Current site status data. Local network connectivity is that to the site SE It is understood that SFT failures do not always result from site problems, but it is the best measure currently available. All GridPP Resources.

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Quarterly report

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  1. Quarterly report London Tier 2 Quarter 1 2005 O Maroney

  2. Current site status data • Local network connectivity is that to the site SE • It is understood that SFT failures do not always result from site problems, but it is the best measure currently available. Quarterly report: London Tier 2

  3. All GridPP Resources • The GridPP-Tier-2 MoUs made reference to integrated CPU over the 3 years of GridPP2. Under the “Promised – integrated kSI2K hours until this quarter” an estimate is provided of what the Tier-2 would have expected to provide to this quarter on the basis of planned installations. “Static kSI2K” shows what would currently be expected if all purchases planned to this quarter had been made and implemented. The actual columns show what has been delivered. Quarterly report: London Tier 2

  4. LCG resources 1) The estimated figures are those that were projected for LCG planning purposes: http://lcg-computing-fabric.web.cern.ch/LCG-Computing-Fabric/GDB_resource_infos/Summary_Institutes_2004_2005_v11.htm 2) Current total job slots are those reported by EGEE/LCG gstat page. Quarterly report: London Tier 2

  5. VOs supported by site 0 => not supported 1 => supported Quarterly report: London Tier 2

  6. Resources used per VO over quarter (kSI2K hours) Quarterly report: London Tier 2

  7. Usage by VO for Tier-2 Quarterly report: London Tier 2

  8. Storage resources in use per VO (GB) Difficult to provide this for the period but we can at least show *current* usage. If we can get the information average and maximum per VO over the period would be useful parameters to record. Quarterly report: London Tier 2

  9. Usage by VO (CPU) Nb: This can be extracted from APEL Quarterly report: London Tier 2

  10. Usage by VO (jobs) Nb: This can be extracted from APEL Quarterly report: London Tier 2

  11. Progress over last quarter Quarterly report: London Tier 2

  12. Tier-2 risks • Here “risk” is any significant event (which has a reasonable chance of occurring) that could potentially prevent the Tier-2 from meeting its project commitments. For example, not getting expected funding to fund equipment/infrastructure is a reasonable risk whereas loss of all staff is not. Quarterly report: London Tier 2

  13. Tier-2 planning for next quarter • Upgrade to LCG-2_4_0 in timely manner • No sites running RH7.3 on service or WN’s • Imperial College HEP to install dCache SRM • Imperial College HEP to participate in SC3 • SGE integration work to move into production at Imperial College LeSC • All sites to be running correctly configured APEL accounting software Quarterly report: London Tier 2

  14. Objectives and deliverables for last quarter Quarterly report: London Tier 2

  15. Objectives and deliverables for next quarter Quarterly report: London Tier 2

  16. Meetings, papers & effort For Tier-2 coordinator: Quarterly report: London Tier 2

  17. Summary & outlook • There has been a significant amount of scheduled downtime this quarter. • This seems very closely related to the manpower problems all sites have had regarding upgrading to LCG-2_3 and Scientific Linux. • Sites have elected to schedule large downtimes to take into account the difficulties they have upgrading, rather than risk having problems raised by the CIC-on-duty. • Unscheduled downtime is almost certainly an overestimate, due to there being no reliable way of measuring this. Failures of the SFT may not always be an indication that the site is unavailable. • The LeSC SGE farm has finally become available to GridPP projects via SAMGrid. • Usage of LeSC resources via SAMGrid will not be accounted for by APEL. • Only 3 sites have properly enabled the APEL accounting package. Quarterly report: London Tier 2

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