Uppsala Multidisciplinary Center for Advanced Computational Science

Maintenance window Wednesday 2016-10-05 -- NOW FINISHED

2016-09-30

As usual, monthly maintenance window begins at 0900 hours on the first Wednesday of the month.

This time we will:

  • Upgrade kernel and other system software on all nodes of clusters Fysast1, Irma, Milou, and Tintin
  • Upgrade kernel and other system software on cloud system Smog
  • Upgrade kernel and other system software on the Mosler system

On Fysast1, Irma, Milou, and Tintin, login nodes will be rebooted once. Slurm jobs will be kept running.

On Smog and Mosler, we plan to stop all services during the upgrade.

During the maintenance day, we will keep you informed about our progress as updates of this news item.

Update at 1055 hours

Login servers of Fysast1, Milou and Tintin have been restarted and are back in service. Login servers of Irma are being restarted at the moment, like the Slurm servers of Milou, Tintin and Irma.

We have decided to keep Smog in service and make the upgrade at a later time.

Maintenance on Mosler continues.

Update at 1320 hours

Slurm servers and login nodes are alreday upgraded and restarted, so you should not expect any more disturbances on Fysast1, Irma, Milou, and Tintin. Slurm queues will be somewhat slower than usual, because of compute node upgrades and restarts between jobs.

We are anyway doing minor maintenance on Smog, but you should expect no interrupts in normal production.

Maintenance on Mosler continues, and is expected to be finished at latest tomorrow (Thursday).

Update at 1500 hours (possibly last update today)

Maintenance on Fysast1, Irma, Milou, Smog, and Tintin is finished.

Maintenance on Mosler continues, and is expected to be finished at latest tomorrow (Thursday).

Update on Thursday at 1200 hours

Maintenance on Mosler continues. We still guess that it is finished later today.

Update on Thursday at 1525 hours

We have finished maintenance also on Mosler, so now are closing the maintenance window.

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