WLCG Tier1 Service Coordination Minutes - 8th April 2010


Site Name(s)

Experiment Name(s)

Data Management & Other Tier1 Service Issues

Storage systems: status, recent and planned changes

Site Status Recent changes Planned changes
CERN CASTOR 2.1.9-4 (all)
SRM 2.8-6 (ALICE, CMS, LHCb)
SRM 2.9-2 (ATLAS)
None None
ASGC CASTOR 2.1.7-19 (stager, nameserver)
CASTOR 2.1.8-14 (tapeserver)
SRM 2.8-2
BNL dCache 1.9.4-3    
SRM 2.8-5 (ALICE)
StoRM 1.5.1-2 (ATLAS, CMS, LHCb)
FNAL dCache 1.9.5-10 (admin nodes)
dCache 1.9.5-12 (pool nodes)
IN2P3 dCache 1.9.5-11 with Chimera    
KIT dCache 1.9.5-15 (admin nodes)
dCache 1.9.5-5 - 1.9.5-15 (pool nodes)
NDGF dCache 1.9.7    
NL-T1 dCache 1.9.5-16 (SARA), DPM 1.7.3 (NIKHEF)    
PIC dCache 1.9.5-15 xrootd doors enabled and published (request from LHCb) none
RAL CASTOR 2.1.7-27 (stagers)
CASTOR 2.1.8-3 (nameserver central node)
CASTOR 2.1.8-17 (nameserver local node on SRM machines)
CASTOR 2.1.8-8, 2.1.8-14 and 2.1.9-1 (tape servers)
SRM 2.8-2
TRIUMF dCache 1.9.5-11 with Chimera namespace    

Other Tier-0/1 issues


dCache news

StoRM news

LFC news


Experiment issues

WLCG Baseline Versions

Conditions data access and related services

  • Frontier/Squid
    • The minutes of the last meeting can be found at the usual URL:ATLAS weekly FroNTier meetings
    • Release 2.7.STABLE9-3 of frontier-squid has been announced. The release notes can be found here. The relative rpm has been made available for tests on Tuesday this week. Feedback received from BNL and CMS and integrated. A new rpm release will be announced soon.
    • Squid caches are needed at CERN to alleviate stress on launchpads at other sites (namely Lyon). Information requested about the number of batch slots allocated to ATLAS and CMS analysis jobs since the number of needed squid caches depends on the number of slots. Squid caches at CERN will be installed for ATLAS by the VOC as soon as this information and the new rpm will be available.
    • Squid caches can be installed on VMs provided that the physical machine hosting the VMs comes with multi-Gigabit network connectivity (1Gb/sec-link per Squid).
    • Dave Dykstra requested more resources to monitor Squid and Frontier launchpad in ATLAS. The request is being put forward by the ATLAS VOC.
    • Squid caches information will be stored in the ATLAS AGIS. Details on how to extract information from AGIS will be made public by the AGIS developers.
    • CNAF have asked if they should install a frontier server for ATLAS or just squid caches. The recommendation is to install squid caches. CNAF has already 2 squid caches for CMS installed. They can share them with ATLAS if the total number of job slots for the 2 experiments does not exceed 1000.

Database services


-- JamieShiers - 30-Mar-2010

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Topic revision: r8 - 2010-04-08 - FlaviaDonno
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