Hot topics

List of the most relevant changes from both CSCS and the Experiment side that can affect operations

• Date and ime:

CERN

• General page with the overview of the CERN infrastructure
• https://cern.service-now.com/service-portal/ssb.do

CSCS

• 12/03: Upcoming dCache Upgrade
  • From Current Version: 3.2 to New Version: 5.2 (gold version)
  • Target Maintenance Date: March 24th or 26th, 08:00 – 17:00

• 12/03: Upcoming ARC Upgrade
  • From Current Version: 5.4.4 to New Version: 6.5
  • Target Maintenance Date: still to be defined but is going to be in April

• 01/05 May Schedule
  • May 12-14, 2020 – Sonexion, Site Wide

• ARC CE Upgrades:
  • Current Version: 5.4.4, New Version: 6.5.0, Targeting May
  • Upgrade in test by VOs
• Improved Scratch Access:
  • Native GPFS mount on CHIPP compute nodes in Test
  • Targeting May 13th maintenance

• GPFS Upgrade
  • May 12-14 maintenance

• 19/05 Maintenance Schedule
  • September 9th, 2020 – Site Wide

• 19/05/2020 Received baseline notices for Singularity 2.6.1 and CVMFS 2.6.3
  • Daint has CVMFS 2.6.4 and Singularity 3.4.0, already in compliance

ATLAS

• 11/04/2020: New workload added, mapped to analysis: COVID
• 27/05/2020: CERN DB incident affecting most of CERN based services
. Restart of frontier-squid required to resume operational state
• 01/06/2020: new WLCG baseline for singularity is 3.5.2 (WLCG, not ATLAS only)
• 27/06/2020: Scheduled CERN wide DB intervention. ALL services for all experiments affected. Expect no submission. Non action required on the sites
• 01/07/2020: new WLCG baseline for frontier-squid is 4.11-3.1 (WLCG, not ATLAS only)

CMS

• date / item

LHCb

• 24/06/2020: Job submission for CSCS stuck, queue got drained, fixed on 25/06/2020.
• 26/06/2020: Draining of the queue, due to CERN database outage on 27/06/2020.