Yggdrasil scheduled maintenance: 09-10 August 2023

Dear users,

as just announced on the baobab-announce@ mailing list, we will do a software and hardware maintenance of the Yggdrasil HPC cluster on 09 and 10 August 2023.

The maintenance will start at 08:00 +0100 and you will receive an email
when the maintenance will be over.

The cluster will be totally unavailable during this period, with no access at all (not even to retrieve files).

If you submit a job in the meantime, be sure that the expected wall time (duration) does not overlap with the start of the maintenance or your job will be scheduled after the maintenance.

What should be done during this maintenance:

  1. Upgrade home and scratch servers to Rocky8 and to BeeGFS 7.2.10
  2. Re install all the nodes with latest Rocky8 (8.8)
  3. Upgrade the servers with latest security and bug fix
  4. Replace faulty HDDs
  5. Replace faulty memories

Thanks for your understanding.

Best regards,
the HPC team