Messages & Announcements

  • 2019-02-08:  Crane: JupyterHub maintenance Friday, February 8 @ 4pm
    Category:  Maintenance

    The JupyterHub service will be unavailable starting at 4pm tomorrow, February 8th. This maintenance is to apply configuration changes to the service, and is expected to last no longer than 30 minutes. Running notebooks may be terminated as part of this maintenance. Users are encouraged to stop their notebooks ahead of time gracefully by selecting "Control Panel" then "Stop My Server" in the notebook interface.

    Please contact hcc-support@unl.edu with any questions or issues regarding this maintenance.


  • 2019-02-04:  Crane: system is available for use, /work filesystem checks ongoing
    Category:  General Announcement

    Checks on the storage server's filesystem targets were completed this morning. The results of the scan for one of the filesystem targets requires us to make a full consistency scan of Crane's /work filesystem. This process can be done concurrently while /work is being used by jobs.

    Please check the status of your jobs if they were running at the time of the failure. These jobs may have experienced I/O errors if they were utilizing files that were backed by this storage server's filesystem targets.


  • 2019-02-04:  Crane: /work filesystem unplanned downtime
    Category:  System Failure

    The /work filesystem for Crane is partially unavailable. One of the storage servers has experienced a hardware failure. The storage server will be rebooted and have filesystem checks performed.

    Pending jobs will be held until the maintenance is complete.


  • 2019-01-14:  Crane: /work filesystem downtime resolved
    Category:  General Announcement

    The /work filesystem for Crane is restored as of 11:30am. A filesystem check was completed with no errors found.
    Running jobs which were accessing /work stalled until the filesystem was restored. This may have caused jobs to exceed their time limit. There was no data loss from this outage.


  • 2019-01-14:  Crane: /work filesystem unplanned downtime
    Category:  System Failure

    The /work filesystem for Crane is partially unavailable. One of the storage servers has experienced a hardware failure. The storage server will be rebooted and have filesystem checks performed.

    Pending jobs will be held until the maintenance is complete.


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