Daily Bulletin

All HPC Resources Scheduled Outage: Tuesday, February 3rd

January 22, 2026

All HPC resources, including Derecho, Casper, and JupyterHub,  will be unavailable on Tuesday, February 3rd from 6:00 AM – 6:00 PM MST.  This downtime will facilitate power infrastructure work along with several software updates, including Bifrost (HPC network backbone) software updates, a PBS upgrade, and Casper image update. The storage systems, Campaign Storage and Destor (Derecho Scratch), will also be unavailable during the outage.  

Scheduled jobs will be held and will resume automatically after system checkout is complete.

Progress updates will be communicated through the Notifier system throughout the outage.

For questions or concerns, please contact help@ucar.edu.

© 2026 UCAR
Postal Address: P.O. Box 3000, Boulder, CO 80307-3000 • Shipping Address: 3090 Center Green Drive, Boulder, CO 80301
National Science Foundation
This material is based upon work supported by the National Center for Atmospheric Research, a major facility sponsored by National Science Foundation and managed by the University Corporation for Atmospheric Research. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the National Science Foundation.