Messages & Announcements

  • 2017-01-11:  HCC SANDHILLS service restored
    Category:  Maintenance

    UNL Facilities Management has restored chilled water flow to the SCHORR machine room. SANDHILLS is now available for use.


    UNL Facilities Management has restored chilled water flow to the SCHORR machine room. SANDHILLS is now available for use.

  • 2017-01-04:  HCC Sandhills Extended Downtime
    Category:  Maintenance

    Facilities Management has extended the chilled water outage for Schorr Center until Jan. 9.
    Because of this we will maintain the service outage of Sandhills to avoid damage to the
    machines. The login node and filesystems will stay up. If you have any questions or concerns
    please contact hcc-support.unl.edu.


  • 2016-12-15:  Sandhills shutdown Dec. 21 - Jan. 4
    Category:  Maintenance

    Campus chilled water will be shut down completely from Dec. 21 to Jan. 4. Since the Schorr machine room relies heavily upon this supply for cooling, and since this overlaps with the holiday shutdown, we plan to shut down most of Sandhills over this time period. We will leave up the filesystems and login node, but all compute (worker) nodes will be turned off to avoid damage to any machines. If you have any questions or concerns please contact hcc-support@unl.edu.


    HCC has no control over this chilled water outage, and will take the above action since it will result in a significantly lower cooling capability.

  • 2016-10-25:  HCC: debugging tools disabled
    Category:  General Announcement

    Debugging tools (gdb, strace, etc) have been temporarily disabled on HCC clusters until further notice. We will re-enable the debugging subsystem once the OS vendor releases a fix for a memory bug in the OS kernel. A follow-up announcement will be made at that time.


    Debugging tools (gdb, strace, etc) have been temporarily disabled on HCC clusters until further notice. We will re-enable the debugging subsystem once the OS vendor releases a fix for a memory bug in the OS kernel. A follow-up announcement will be made at that time.

  • 2016-10-13:  Recovery: Anvil Unexpected Downtime Finished
    Category:  General Announcement

    We just restarted the Ceph OSDs and theyâre back on line now. The Ceph filesystem is available now. The performance may still be degraded until the recovery finished. Please let us know if you have any problem.


    We just restarted the Ceph OSDs and theyâre back on line now. The Ceph filesystem is available now. The performance may still be degraded until the recovery finished. Please let us know if you have any problem.

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