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User Notice: Graham outage scheduled for Aug 21 - 29 (with end date subject to change)

This outage has been extended. For full details, visit

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Starting Tuesday, August 21, 2018 at 7:00 am Eastern, the Graham cluster will be unavailable to all users and running jobs will be terminated. The power feed to the building is being upgraded, which requires a complete shutdown and will take approximately eight days to complete. The anticipated end date for this outage is Wednesday, August 29, 2018. The Graham cluster, all storage, Globus, cloud, TSM backup services and all associated hardware will be unavailable to users during the outage.

Users are encouraged to migrate to Cedar before the outage and to shut down their running virtual machines in Graham Cloud before the downtime. If you have used Niagara in the past, you can also consider this cluster as an alternative.

Please watch for updates on the availability of Graham and all other national systems.

Users will be notified by email when the cluster is up and running again. The duration of this outage is subject to change and updates will be posted to and via the Compute Canada, Compute Ontario, and SHARCNET Twitter accounts. If the outage is extended by more than two days, another user communication will be sent directly.

For questions, or assistance migrating to other national systems, please email