CTA deployment meeting

Contribution List

41. ALICE Post-migration Issues

15/10/2020, 14:00

• ALICE went into production on schedule on Monday 12 October. Well done everyone!
• Michael: Namespace reconciliation (1.8 million files in Alien are not in CTA)
• David: ALICE probe: Alice authentication relies on xrootd-alicetokenacc RPM and secret magic sauce from Andreas, see #105 and...

45. Getting LHCb into Production

15/10/2020, 14:10

• See Putting EOSCTALHCB into Production (CodiMD)
• Successful 200TB test with 10 tape drives and one buffer server for 2.5GB/s of constant archival throughput. Chris will now recall the files.

TO DO/Schedule

• TPC test from EOS LHCb to T1s
• DAQ test should be possible in November (tentatively 9 Nov 2020)

52. Getting CMS into Production

15/10/2020, 14:20

• See Putting EOSCTACMS into Production: TO DO List
• See Notes from meeting with CMS 02/10/2020
• CMS say write tests are satisfactory

TO DO

• Michael/Giuseppe: clean up namespace, identify any tapes which need to be repacked
• Recall...

46. Getting PUBLIC into Production

15/10/2020, 14:30

• Migration of SMEs from CASTOR to CTA, see Putting EOSCTAPUBLIC into Production

NA62

• NA62 repack is proceeding
• NA62 offline integration: Vova has created the VM with AFS+EOS to allow the tests to proceed
• NA62 migration test onto EOSCTA PPS, see issue #72
• NA62 recall...

53. Repack

15/10/2020, 14:40

Repack priorities

1. Deploy and test: (a) Injection of recovered files when repacking broken tapes, (b) Change mount policy on-the-fly.
2. Tape Server: Add configuration options to give greater control over the highly-distributed maintainence process.
3. Remove "superseded" files in favour of the recycle bin.
4. Investigate if we can run a separate repack instance sharing the same catalogue.

33. AOB

15/10/2020, 14:50

• Repacking and reclaiming tapes imported from CASTOR (i.e., removing the FROM_CASTOR flag from tapes in CTA)
• CTA website deployment still broken

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