CTA deployment meeting

Monday 7 Dec 2020, 14:00 → 16:00 Europe/Zurich

600/R-001 (CERN)

Michael Davis (CERN)

14:00 → 14:10 Getting CMS into Production

• CMS is in production, thank you everyone!
• Michael to check Eric Vaandering's queries about missing files

14:10 → 14:20 Getting LHCb into Production

• See Putting EOSCTALHCB into Production (CodiMD)
• XRootD TPC was tested and works in both directions

TO DO

• LHCb migration test (January)
• DAQ test : waiting for network connectivity (January)
• How to do transfers with TPC to/from CNAF? (HTTP transfers from CNAF to CTA should be possible. All we are missing is an alternative to SRM bringOnline for the retrieve workflow).

14:20 → 14:30 Getting PUBLIC into Production

• Migration of SMEs from CASTOR to CTA, see Putting EOSCTAPUBLIC into Production
• Repack of public_user is ongoing
• Vova will present at IT/SME coordination meeting today
• Tue 8 Dec: meeting with CAST
• Thu 10 Dec: meeting with DUNE
• COMPASS DAQ tests on CTA (#69) (ongoing)
• NA62 recall tests (30 TB) on EOSCTA PPS (#72) (ongoing)
• n_TOF: eliminate Cns_* calls from their DAQ software and replace with standard XRoot calls.
• Michael has contacted legacy experiment contacts about migrating their data (Aleph, Chorus, Delphi, Nomad).

TO DO

• Missing prepare request IDs, which CTA instances are affected? Is this caused by TPC configuration?
• "ALICE-like" spinner space on EOS PUBLIC PPS, to test with n_TOF and NA62

14:30 → 14:40 Tape Lifecycle

• Tape states in CASTOR and CTA
• Julien and Vlado to present their summary of tape lifecycle in CTA

14:40 → 14:45 AOB

• Instance for operators to run cta-admin commands. Could aiadm be used for this or do we need a dedicated instance?
• Securing the CTA Frontend: we used to have a feature to restrict admin commands to specific hosts but we removed it. Do we need this functionality and if so can it be configured in XRoot without needing to add code back into CTA?
• Do we want to compare Paul's RAO in Vlado's RAO tests?