RAL Tier1 weekly operations castor 26/07/2019

Standing agenda

1. Achievements this week

2. Problems encountered this week

3. What are we planning to do next week?

4. Long-term project updates (if not already covered)

5. Special topics

6. Actions

7. Review Fabric tasks

  1.   Link

8. AoTechnicalB

9. Availability for next week

10. On-Call

11. AoOtherB

Decommissioned all the lhcbDst disk servers and main headnodes
- SRMs to be done shortly
Kernel upgrade on Facilities disk servers.
Comparative testing of SL6 and SL7 disk servers using IOZONE ongoing
- Test complete for OCF, ongoing for Dell.
New robot testing: BC ready to do the 'mixed' test.

Bellona had some hardware problems continuing from last week.
- Intervention attempted on Thursday, which triggered additional problems
- Combination of hardware issues, mostly a failed array controller.
- CASTOR downtime on Thursday due to this. 11-2.
- Still running with one controller, replacement expected Monday or Tuesday.

Upgrade to new Facilities headnodes
- Final ET test showed a few errors, need to be checked.
- Pencilled in for Thursday
- Minimum non-CASTOR staff needed for the intervention: Brian, Kevin.
- Kevin found an xrootd error that needs to be checked out.
Sorting out xrootd functional test
- Plan to create and destroy the robot proxy every time we run the test.

New CASTOR disk servers currently with Martin.
Migration of name server to VMs on 2.1.17-xx is waiting until aliceDisk is decommissioned.
CASTOR disk server migration to Aquilon.
- Agreed a testing plan with Fabric
Facilties headnode replacement:
- SL7 VM headnodes are being tested
Turn VCert into a facilities test instance.
Migrate CASTOR to Telegraf/Influx/Grafana (aka TIG)

AD wants us to make sure that experiments cannot write to that part of namespace that was used for d1t0 data: namespace cleanup/deletion of empty dirs.
- AD still wants to delete all the excess directories but is happy to do the migration route fix in the interim.