All systems are operational
Scheduled Maintenance
Graham Planned Outage - Arrêt planifié

Due to site electrical changes, there will be a brief outage of some Graham components, for up to 2 hours, on Wednesday, September 25.

This will affect most compute nodes, so the scheduler will be configured to avoid scheduling jobs that would be affected. Login, storage and cloud nodes will NOT be affected.

Scheduled maintenance for Arbutus - September 25 / Maintenance sur Arbutus le 25 septembre 2019

On Wednesday, September 25, external network access to the Arbutus cloud will be interrupted for at least 1 hour during a 3-hour network maintenance window from 7:00 p.m. to 10:00 p.m. (PDT) / 10:00 p.m. to 1:00 a.m. (EDT). During this time, virtual machines on Arbutus will continue running.


L’accès externe au nuage Arbutus sera interrompu le mercredi 25 septembre, en raison de travaux de maintenance. L’interruption d’au moins une heure aura lieu entre 22h et 1h (HAE) / 19h et 22h (HAP). Les instances virtuelles en cours avant l’interruption de service ne seront pas arrêtées.

Past Incidents

Friday 30th August 2019

Power outage - Panne électrique

Cedar - There was a power outage at this site. Il y a eu une panne de courant sur ce site.

There was a short power brownout in the area that took down the compute cluster, all running jobs will have failed/stopped due to nodes losing power.

Thursday 29th August 2019

No incidents reported

Wednesday 28th August 2019

No incidents reported

Tuesday 27th August 2019

Filesystem problem - Problème de système de fichiers

There is a problem with the home and project filesystem on the Beluga cluster, which seems to be unresponsive. We are investigating.

Il y a un problème avec le système de fichiers home and project sur la grappe Beluga, qui ne réagit pas correctement. Nous investiguons actuellement ce qui se passe.

Cedar Scheduler problem - Problème d'ordonnanceur

Update 2019-08-27 7:30 PST:

The Slurm scheduler on Cedar has been restarted and jobs are being processed again.


The job scheduler is misbehaving, which may impair the ability to start new jobs. L'ordonnanceur a un problème, ce qui peut empêcher de démarrer de nouvelles tâches.

Monday 26th August 2019

No incidents reported

Sunday 25th August 2019

No incidents reported

Saturday 24th August 2019

No incidents reported

Friday 23rd August 2019

No incidents reported

Thursday 22nd August 2019

No incidents reported

Wednesday 21st August 2019

Power outage - Panne électrique, scheduled 1 month ago

An unplanned power outage (due to an electrical storm) at the Graham data centre has caused all compute nodes to be rebooted and killed all running jobs. We are recovering the system and it should be available shortly.

Tuesday 20th August 2019

No incidents reported

Monday 19th August 2019

Power outage - Panne électrique, scheduled 1 month ago

Graham should be back to normal by this afternoon after this weekend's power outage.

Sunday 18th August 2019

No incidents reported

Saturday 17th August 2019

No incidents reported