Our major HPC systems and services have scheduled preventive maintenance periods. Changes to these schedules are reported in the Daily Bulletin.
| System | Time* | Day |
| Yellowstone | TBD | As needed; regular schedule TBD |
| Geyser/Caldera | TBD | As needed; regular schedule TBD |
| GLADE | TBD | As needed; regular schedule TBD |
| HPSS | 0700-0900 | Tuesdays |
| Lynx | 0800-1600 | 3rd Tuesday of the month |
| Janus | 0800-1700 | 1st and 3rd Wednesday (if needed) |
* Mountain time zone
CISL informs users of system news and important status updates such as outages and maintenance periods through the Daily Bulletin newsletter and the Notifier service.
The Daily Bulletin (“Daily B”) reports on system news, changes to the CISL environment, and scheduled maintenance periods for major CISL resources. You can read the Daily B in your email or online.
All new CISL email addresses ([your UCAR username]@ucar.edu) are added automatically to the Daily B mailing list. You can change your Daily B preferences, subscribe, or unsubscribe online.
For questions or more details about Daily B items, send email to cislhelp@ucar.edu or call 303-497-2400. To contribute items or information to the Daily B, contact dailyb@ucar.edu.
The Notifier service provides a near-real-time feed of system status changes and other updates, so it is the best way to learn about status changes, particularly unscheduled outages. You can also log in to check the calendar.
New users are subscribed automatically to the “CISL Status” Notifier list and receive notices about NCAR supercomputers, storage systems, and support services. The CISL User Services Section manages notices posted to the CISL Status list to ensure that they are relevant to users.
To fine-tune your Notifier subscriptions, log in to Notifier. Keep in mind that if you unsubscribe from all Notifier lists, you will not receive timely system status information. If you opt out of the CISL Status list, we strongly recommend subscribing to at least some of the following lists: Yellowstone, Geyser and Caldera, HPSS, and HPC Support Services. (Many other lists are targeted primarily at UCAR staff or UCAR system administrators.)
Subscribe to the RC-Announce mailing list to be notified of Janus system changes.
Call 303-497-2400 
Send an email 
Submit a help ticket 
Walk-in: ML 1B Suite 55