old news

Power outage - Abisko and Akka affected

  • Posted on: 28 April 2016
  • By: admin

We just had a power outage this morning. All jobs running on both Akka and Abisko were interrupted. We are currently in the process of restoring the systems.

We hope to have all Akka compute nodes back in service by the end of today. 

Abisko nodes may take longer. It is possible that we can get them back up today, but they may not be available until Thursday morning, due to the scheduled file system update tomorrow.

Tue, 2014-08-19 11:40 | Daniel Petersen

Downtime due to installation of new cluster file system

  • Posted on: 28 April 2016
  • By: admin

On Wednesday Aug 20th we will do the initial installation of our new cluster file system.

To do this we need to do some recabling on the interconnect of Abisko.
We will therefore drain the cluster of jobs so that it will be empty at 08:00

The system is estimated to be back in production on Thursday morning at the latest.

More information on the new file system will be annouced later.

Wed, 2014-08-13 10:39 | Åke Sandgren

Power failure

  • Posted on: 28 April 2016
  • By: admin

Today (2014-07-19) we suffered a city-wide power failure around 15:27 CEST. This caused all of the Abisko and Akka nodes to lose power and shut down.

The clusters should be back in production again at approximately 21:00 CEST.

Sat, 2014-07-19 22:50 | Björn Torkelsson

Problem with /pfs/nobackup filesystem on Abisko

  • Posted on: 28 April 2016
  • By: admin

We are currently experiencing some problem with the /pfs/nobackup file system on Abisko.

To get it back into working order we are forced to reboot some of the nodes, thereby killing the jobs on them (the jobs would fail anyway due to the problem)

We apologize for this and are working as fast as we can to get it back in working order.

*UPDATE 2014-03-21 18:33*

/pfs/nobackup is now (hopefully) back in working order on Abisko

Fri, 2014-03-21 19:16 | Åke Sandgren

Akka has been upgraded to Ubuntu Precise 12.04

  • Posted on: 28 April 2016
  • By: admin

Akka has now been (partially) upgraded to Ubuntu Precise.

The login node and some of the nodes are upgraded.
The rest will follow when running jobs are finished.

The environemt is now the same as it is on Abisko.

Documentation on the web has not been updated yet so please look at the examples for Abisko in the meantime and adapt them to fit the number of cores (8) per node on Akka.

Please notify support@hpc2n.umu.se in case of problems.

Akka being upgraded to the same environment as Abisko

  • Posted on: 28 April 2016
  • By: admin

Starting on Monday Mar 17th Akka will be upgraded from the old CentOS distribution to the same Ubuntu 12.04 distribution that is running on Abisko.

Akka will also run slurm as the batch system.

This way both systems will look and feel the same (apart from differences in computing speed of course)

Submission of jobs have already been stopped.
Already submitted jobs will be allowed to finish.

Fri, 2014-03-14 16:47 | Åke Sandgren

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Updated: 2018-12-12, 14:43