system news

File system problem on /pfs/nobackup, queues stopped: 2018-01-24 19:22; *SOLVED*

  • Posted on: 24 January 2018
  • By: ake

We are currently experiencing problems with the /pfs/nobackup file system.

One of the storage units are misbehaving causing problems when accessing files located on it.

Due to this the batch queues on both Abisko and Kebnekasie have been stopped.

Login may hang for users whos login script (.bashrc) tries to access the /pfs/nobackup filesystem

We currently have no estimate for when the problem will be solved.

 

* UPDATE: 2018-01-24 20:00 *

The problem has now been solved.

Kernel upgrades may cause slight disturbances - 2018-01-10

  • Posted on: 10 January 2018
  • By: ake

During the coming days we will be upgrading the kernel on all systems due to the Meltdown/Spectre security bugs.

This may cause some interference in the normal behaviour of the systems like slow or temporarily missing file system access, stopped queues and similar.

We will try to minimize the user visible effects but this is a upgrade we must do as quickly as possible and may sometimes have to do things in such a way that the user experience is somewhat degraded.

Cooling system maintenance, all clusters down 2017-12-19, *CANCELED*

  • Posted on: 14 December 2017
  • By: ake

Tuesday 2017-12-19 there will be a maintenance on the cooling system for the room with our cluster storage (/pfs/nobackup).

This means that we have to take that storage down and also the clusters and login nodes.

There is currently a reservation on all nodes of both clusters starting 2017-12-19 07:00 CET.

Any jobs that have a walltime requirement that would extend into that maintenance window will not be allowed to start.

Problem with hpc2n mail support address. *SOLVED*

  • Posted on: 15 November 2017
  • By: roger

We are experiencing some problems with our support address <support@hpc2n.umu.se> at the moment. This seems to be SNIC wide and they are working on it. This news item will be updated when more information is available.

Update 2017-11-15 14:20

Problem should be solved now and it should be possible to send in support problems to our support address again.

Software stack on Kebnekaise rebuilt 20171018

  • Posted on: 18 October 2017
  • By: ake

Today, 2017-10-18 13:40, we switched over the software stack on Kebnekaise to one that has been rebuilt from scratch.

All user level codes and most libraries and helper programs have been rebuilt from scratch.

We have tried to make sure nothing used by our users is missing, but should any job fail due to missing libraries or similar, please make sure to notify support@hpc2n.umu.se immediately and we will fix the problem.

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Updated: 2018-02-14, 15:06