MeetingSwissWLCGOperations20100715 < LCGTier2

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---+ Swiss WLCG Operations Meeting on 20100715
   * *Date and time*: 2010/07/15 at 9:30
   * *Place*: EVO, password: chipp
   * *External link / EVO*: http://evo.caltech.edu/evoNext/koala.jnlp?meeting=MeMMMu2M2sDaDi9v9uDv9e

---++ Agenda
   * Site status
   * WLCG Workshop in London last week
   * CreamCE
   * Report on German Atlas Cloud Meeting
   * CMS vobox
   * AOB

---++ Attendants
   * ATLAS: Marc Goulette
   * CMS: Leonarda Sala
   * LHCb: Roland Bernet
   * CSCS: Pablo Fernandez, Peter Oettl

---++ Minutes
   * Site Status (PF)
      * mostly running fine
      * some Lustre errors which are mostly transparent to users
         * PBS at some point fails creating tmp directories; mds failover "solves" the problem
         * under inverstigation; also opened ticket to Sun support
      * Some Atlas jobs put high laod on mds which slows down other jobs
   * WLCG Workshop in London last week. http://indico.cern.ch/conferenceOtherViews.py?view=standard&confId=82919
      * It's better to have a local BDII-top for job reliability
      * Is there a way to see if users gravitate out of our site? According to the VOs this is not happening
         * ATLAS
            * no user blacklisting
            * only during downtime or major problems
            * MG happy with CSCS; faster than other sites
         * CMS
            * cms users are quite happy
            * no user blacklisting at least from Swiss physics community
         * LHCb
            * users can't blacklist
            * centrally only during downtimes or major problems --> ticket
      * The storage model is under discussion, maybe the push model is not good enough and would be good to have some pull/caching mechanisms
      * Altas complained about the storage pledges in Tier2s, they only provide 75% of the pledges. We were one of the *red* sites, but all free space was assigned to the VOs and now we're fine.
      * The experiment software is creating troubles to sites. NFS is not the best place nor it is Lustre. Looks like CernVmFs could be a good solution.
      * Having 10 Gbps bandwidth is about three times more than we're required to, very good feedback.

   * CREAM-CE (PO)
      * hostname: cream02.lcg.cscs.ch
      * installation was pretty smooth
      * up for a week
      * processed about 5000 jobs; mostly CMS
      * VO reps should tell their VOs that it's available for testing
   * German Atlas Cloud Meeting (MG)
      * see attached slides

   * CMS VO BOX (PF)
      * taken offline (e-mail)

#ActionItems
---++ Action Items
   * VO Reps: announce cream02 available for testing

Attachments

Topic attachments
I	Attachment	History	Action	Size	Date	Who
pdf	AtlasReleases.pdf	r1	manage	448.4 K	2010-07-15 - 07:36	PabloFernandez
ppt	CSCSBiWeeklyMeeting15july2010.ppt	r1	manage	43.0 K	2010-07-15 - 07:36	PabloFernandez
pdf	Tier1Report.pdf	r1	manage	201.6 K	2010-07-15 - 07:36	PabloFernandez
pdf	Tier2Summary.pdf	r1	manage	89.8 K	2010-07-15 - 07:37	PabloFernandez