WLCG Interaction Stefan Roiser LHCb Computing Operations Workshop 27 Jan ‘15

WLCG Interaction Info from WLCG via various monitoring tools – Sam, Site Status Board, perfSonar, network monitoring Info to WLCG via various meetings – WLCG 3pm, WLCG Operations Coordination, GDB, Management Board 27 Jan '15Dist Comp Operations - StR2

WLCG Monitoring What you always wanted to know: – Availability: The percentage a site / service is available for use – Reliability: The percentage a site / service is available for use within its schedule 27 Jan '15Dist Comp Operations - StR3

The “LHCB_CRITICAL” profile result steer the WLCG availability/reliability reports Note: The IT contact person has the possibility to “repaint” availabilities/reliabilities in case e.g. the site was not responsible for a failed probe SAM3 27 Jan '15Dist Comp Operations - StR4

Nagios Info in SUM currently fed from SAM/Nagios, – But we can feed anything we like, e.g. LHCb SAM probe results, other Nagios probes – Current: Worker nodes, Storage (SRM), LFC, – To Come: HTTP/WEBDAV, xroot Currently we use it to check T0/1 site availabilities – A good way to interact with certain sites 27 Jan '15Dist Comp Operations - StR5

Site Status Board 27 Jan '15Dist Comp Operations - StR6 Easy way to setup table views and present them to also non LHCb members E.g. on CVMFS probes, general site info, Storage, Dirac Components, …

More Monitoring perfSonar – Network monitoring between sites on latency and throughput – Work ongoing to extract the information and make it available to LHCb WLCG transfer dashboard (currently in preprod) – – … including fts and xroot transfers of all VOs – Maybe good tool to see what/how others are currently doing FTS monitoring – See Michail’s talk 27 Jan '15Dist Comp Operations - StR7

“WLCG 3pm meeting” Currently held Mo/Thu at 3pm held in CERN/513-R-068 or connect via Vidyo to be attended by the GEOC513-R-068Vidyo Preparation: Before lunch prepare a section in ationsWLCGdailyReports ationsWLCGdailyReports Attendees are: VOs, T0/1 Sites, WLCG service providers Purpose: – WLCG interaction of LHCb since the last meeting – Inform sites about current and upcoming activities – Incidents in the realm of WLCG -> IMPORTANT put GGUS links!!! For Run2 schedule may change – probably decided at the WLCG Workshop in April 27 Jan '15Dist Comp Operations - StR8

WLCG Operations Coordination Meeting Bi-weekly meeting, in CERN 31-S-023, Indico (including Vidyo), TwikiCERN 31-S-023IndicoTwiki Attendees: VOs, T0/1+2 sites, WLCG service providers, WLCG working groups and task forces Purpose: – Status of Working Groups and Task forces – Operations and Plans of VOs – In depth discussion on operational issues Currently attended by IT link person Proposal: GEOC of the week prepares the report and attends the meeting – Advantages: More wide-spread view of operations via different GEOCs Enforced WLCG / LHCb interaction by involving GEOCs also in this context GEOCs learn about the current issues and plans of LHCb in more detail 27 Jan '15Dist Comp Operations - StR9