system news

Cooling maintenance

  • Posted on: 27 April 2016
  • By: admin

Due to a leak in the feed to the cooling system Umeå Energi have to do some emergency repairs which may result in our cooling system failing and thus affecting all our clusters.

We have therefor stopped the batch systems from starting new jobs.

We will start the batch system when everything is stable again.

UPDATE (20110825):
According to Umeå Energi the cooling repairs are expected to be finished not earlier then Thursday evening/night (20110825)
Until then we have to keep Akka and Ritsem turned off due to insufficient cooling.

Electrical maintenance in one computer room June 14th

  • Posted on: 27 April 2016
  • By: admin

On June 14th maintenance on the electrical feed to our cluster computer room will be performed.

We estimate this to start at 09:00 on June 14th and be finished during the afternoon.

Akka and Ritsem will be turned off completely during this maintenance window. Jobs that have a walltime extending into the above time frame will not be allowed to start. This means that during the days leading up to the time frame Akka will seemingly have free nodes available but jobs will will not start.

We apologize for any inconvenience this may cause.

Electrical maintenance in one computer room May 2nd to 10th

  • Posted on: 27 April 2016
  • By: admin

During May 2nd to 10th there will be an electrical maintenance in one of
our computer rooms.

This is due to an upgrade of the electrical facilities to accommodate our
new cluster.

Akka, Ritsem and Sarek will be turned off completely, including login
nodes, during the whole period. Jobs that have a walltime extending into
the above time frame will not be allowed to start.
This means that during the days leading up to the time frame Akka will
seemingly have free nodes available but jobs will will not start.

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Updated: 2024-03-21, 12:31