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During dry-runs and the DHS move access to ECFS data not identified as necessary to continue operational and time-critical activities will not be available. However, archiving into ECFS should not be affected by the DHS migration.-Move ECFS will be impacted as follows:

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No impact expected

The following list of available data, not expected to be impacted during dry-runs and the DHS-Move, will be updated in light of further migration progress: 

  • Recent output (~ one month) from operational production systems
  • Observations
  • Any data written during dry-runs and DHS-Move

The following services are not expected to be impacted by dry-runs and the DHS-Move:

  • Writing into ECFS
  • All 'metadata' operations (listing, renames, moves, deletions, changing ownership/permissions).
  • MS Time-critical suites
  • Atos HPC testing


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Unavailability of service/data

The following services/data will not be available during dry-runs and the DHS-Move:

  • Any data not listed as available above, in particular IFS Research experiment data  and historical operational data. For data offline the first character in the output of the 'els -l' command will be replaced with 'o'.

The commands ecp, emv and ecat accessing data which are not available will fail with a 'Data Offline' error without retrying. 


Recommended user action

  • Users of MARS and ECFS are urged to check if and how their work might be affected by the DHS-Move and plan accordingly.
  • Major changes to production processes etc. are best avoided during this period. For some activities the best course of action might be to avoid the migration period entirely...
  • ECMWF computer users missing access to data for any critical activity during the DHS-move Move should contact us at their earliest convenience with their requirements via the ECMWF Support Portal.