Messages & Announcements

  • 2018-07-30:  Anvil filesystem maintenance completed
    Category:  Maintenance

    The maintenance on the Ceph filesystem has been completed and the system is available for use. Please check your VMs and reboot if they appear unresponsive. As always, contact hcc-suppport@unl.edu if you require assistance.


  • 2018-07-12:  HCC Anvil filesystem maintenance planned --- 23rd July
    Category:  Maintenance

    This announcement is for Ceph filesystem maintenance affecting Anvil only. The maintenance window starts at 9:00 AM 23th July and may take up to a week. Anvil will keep running during the downtime, however some performance impact is expected. Users are encouraged to shut down their VMs if possible. Running VMs may be suspended or rendered unresponsive during this timeframe. A follow-up announcement will be posted when the system is ready for production use.


  • 2018-06-29:  SANDHILLS: Unexpected outage
    Category:  System Failure

    An unexpected power outage occurred in SCHORR approx 9:40pm Fri Jun 29. Cluster infrastructure maintained service but worker nodes rebooted. Please check the status of your running and queued jobs on SANDHILLS.


    An unexpected power outage occurred in SCHORR approx 9:40pm Fri Jun 29. Cluster infrastructure maintained service but worker nodes rebooted. Please check the status of your running and queued jobs on SANDHILLS.

  • 2018-06-29:  SANDHILLS Unexpected Power Outage
    Category:  System Failure

    An unexpected power outage occurred in SCHORR approx 4:40pm today. Cluster infrastructure maintained service but worker nodes rebooted. Please check the status of your running and queued jobs on SANDHILLS.


    An unexpected power outage occurred in SCHORR approx 4:40pm today. Cluster infrastructure maintained service but worker nodes rebooted. Please check the status of your running and queued jobs on SANDHILLS.

  • 2018-06-10:  HCC External Networking Impaired Service
    Category:  General Announcement

    Maintenance being conducted on the fiber ring between Lincoln and Omaha is impacting network connectivity to and between HCC's data centers. The maintenance is ongoing with no known ETA.


    Maintenance being conducted on the fiber ring between Lincoln and Omaha is impacting network connectivity to and between HCC's data centers. The maintenance is ongoing with no known ETA.

    This affects external connections to HCC's PKI datacenter (TUSKER/CRANE/ANVIL/ATTIC) and the use of the /common filesystem on SANDHILLS. Internal networking at HCC data centers is functioning and running jobs should remain unaffected unless they depend on external data sources.

    This maintenance which began yesterday was not intended to be disruptive but is causing significant disruption to our network connectivity. Feel free to try and use HCC resources during this time, but expect network interruptions such as stalled SSH sessions until it is resolved.

    This work is completely outside the control of HCC staff, and we cannot provide any ETA on when the work will be completed.

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