Yggdrasil scheduled maintenance: 23-24 November 2022

Dear users,

as just announced on the baobab-announce@ mailing list, we will do
a software and hardware maintenance of the Baobab HPC cluster on
23 and 24 November 2022.

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. Update slurm to latest version
  2. re install all the nodes with latest CentOS security and bug fix
  3. update firmware on storage servers
  4. migrate from pam_slurm to pam_slurm_adopt : this is to ensure you get only what you requested when you connect to a compute node using ssh

Thanks for your understanding.

Best regards,
the HPC team