Speaker
Description
CERN Storage Services are key enablers for CERN IT workflows: from scientific collaboration and analysis on CERNBox, to LHC data taking with CTA and EOS, to fundamental storage for cloud-native and virtualized applications.
On the physics storage, 2022 was marked by the absence of a Heavy Ion run. The energy crisis resulted in a shorter LHC run than anticipated and the impact will continue to be felt during 2023. Consequently, the Proton run will target a higher integrated luminosity for most experiments and there is a likelihood of an extended Heavy Ion run. We will review the impact of the physics planning changes on the storage infrastructure and how CERN storage is preparing for the resulting increased data rates in 2023. Notably, ALICE storage workflows through EOS ALICE O2 and EOSCTA ALICE.
We will review progress in HTTP protocol activities for T0 transfers as well as synergies on transverse functionalities, such as monitoring.
Physics storage successfully migrated to EOS5 during 2022, 2023 is the migration year for all the other services running on EOS software: notably EOSCTA and CERNBox infrastructures. We summarise plans and evolution for CERNBox, building on the new refreshed platform reported at the last meeting.
CERN maintains a large Ceph installation and we report on recent evolutions, including investments in delivering a high(er) available service and in hardening upstream features for backups and recovery.
Last but not least, we will report on the storage group migration strategy out of CentOS7 which will be implemented in 2023.