Messages & Announcements

  • 2016-09-07:  Tusker: /work filesystem performance issues
    Category:  System Failure

    We are investigating performance issues with the Tusker /work filesystem. There may be disruption to running jobs as we work to correct the issue. We will follow up with details when the maintenance is complete.


    We are investigating performance issues with the Tusker /work Lustre filesystem. Around 8:30am on Wednesday, performance of the Tusker /work filesystem dropped significantly.

    To correct the problem, we are restarting Lustre services. This may disrupt running processes which are reading or writing files on /work.

    We will follow up with more details when the maintenance is complete.

  • 2016-08-16:  Tusker: Maintenance complete
    Category:  General Announcement

    Maintenance is complete on Tusker. Please let us know of any troubles using the cluster by sending email to hcc-support@unl.edu


    Maintenance is complete on Tusker. Please let us know of any troubles using the cluster by sending email to hcc-support@unl.edu

  • 2016-08-11:  Crane: Maintenance complete
    Category:  General Announcement

    Maintenance is complete on Crane. Please let us know of any troubles using the cluster by sending email to hcc-support@unl.edu


    Maintenance is complete on Crane. Please let us know of any troubles using the cluster by sending email to hcc-support@unl.edu

  • 2016-08-04:  HCC Tusker Downtime Planned - August 15, 2016
    Category:  Maintenance

    This maintenance outage for software updates affects Tusker only. Jobs which cannot complete before August 15th at 08:00am will be held in queue until the maintenance is complete. A follow-up announcement will be posted when the system is ready for production use.


    To minimize the impact to running jobs we are declaring a downtime for Tusker to complete this work. We will use this maintenance window to update various software components across the cluster. The Tusker login node will also be updated and will require users to log off. Users will be denied access to the Tusker login node until the maintenance is completed.

  • 2016-08-04:  HCC Crane Downtime Planned - August 10, 2016
    Category:  Maintenance

    This maintenance outage for software updates affects Crane only. Jobs which cannot complete before August 10th at 8:00am will be held in queue until the maintenance is complete. A follow-up announcement will be posted when the system is ready for production use.


    To minimize the impact to running jobs we are declaring a downtime for Crane to complete this work. We will use this maintenance window to update various software components across the cluster. The Crane login node will also be updated and will require users to log off. Users will be denied access to the Crane login node until the maintenance is completed.

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