AFS weekly meeting

Monday 12 Jun 2017, 14:00 → 15:00 Europe/Zurich

31/1-012 (CERN)

AFS service/operation meeting

AFS operations meeting 2017-06-12

present: Dan, Kuba, Massimo, Jan

• finally got openstack quota, and permissions to use "m2.xlarge" (15GB RAM) servers
  • sufficient for 4x VMs in both critical and non-critical, 2 5TB CEPH volumes each (io1, cpio1), with root disk on a separate CEPH volume.
  • will go for "upstream" CC7
• ABS "no CASTOR nameserver" occasional errors : probably related to the alias dropping from DNS, glitch in loadbalancing (non-production machine in their service)
• one ticket about screen/AFS token renewal -> Dan (IP-based ACLs might work but will go away with EOS..)
• found that CC7 was not running the "setserverprefs" script, i.e. Meyrin clients would talk to Wigner (nobody complained)
  • afterwards found that we have 188.185 IPs actually also in Meyrin - ticket to CS to get full list.
• openafs-1.6.21 prerelease is out, seems to contain some (more) systemd workarounds
• CTA for AFS backup: not ready yet (on their side). Eventually will deploy on one server, lots of pending ABS changes incl RPMification (whichthen could get rolled via "qa"->"production" flow). While copying to both CASTOR and CTA, might want to use xrootd 3rd-party-copy to prevent 2x slow "vos dump" (or storing an intermediate file on local disk)