SCINet Future Scheduled Outages
The table below lists information about planned SCINet outages. See SCINet Forum Announcements page (must have a SCINet account to access) for communications about emergency outages. Visit the Downtime Archive for information about past outages.
| Date | Time | System | Affected Locations | Reason |
|---|---|---|---|---|
| 04/13/2026 | 4 pm EDT | Juno | All | Maintenance |
| 04/14/2026 | 6 am - 5 pm CT | Atlas | All | Maintenance |
| 06/18/2026 | 6 am CT | Ceres | All | Maintenance |
| 07/14/2026 | 12 am - 5 pm CT | Atlas | All | Maintenance |
| 10/13/2026 | 6 am - 5 pm CT | Atlas | All | Maintenance |
Further detail for each outage is posted in the announcements below if availible.
Maintenance · Juno - All - Monday, April 13 · 2026
Maintenance is scheduled for April 13 that may impact the availability of the Juno long-term storage system.
Our communications vendor has scheduled essential maintenance during the following window:
- Monday, April 13: 4PM EDT – 4AM EDT
During the maintenance window, the Juno long-term storage system may be unavailable to users. We recommend planning your work accordingly and avoiding transferring data to and from Juno during these times.
BARC staff may be unable to access the Atlas and Ceres HPC clusters as well, during these maintenance windows.
We apologize for any inconvenience this necessary maintenance may cause and appreciate your understanding as we work to ensure the continued reliability of our systems.
If you have any questions regarding this planned maintenance, please do not hesitate to contact us at scinet_vrsc@usda.gov.
Maintenance · Atlas - All - Tuesday, April 14 · 2026
The Mississippi State University High Performance Computing Collaboratory’s (MSU/HPC2) Computing Office has scheduled maintenance for the Atlas compute cluster.
All associated systems (login, devel, dtn, ood, compute, storage, etc.) and services (cron, globus, ood, etc.) will be disabled during this maintenance.
A notification will be posted once maintenance is complete. For any associated problems, submit a help desk ticket.
Maintenance · Ceres - All - Thursday, June 18 · 2026
Ceres cluster maintenance is scheduled for June 18, 2026.
Queued jobs will not start if they cannot complete by 6 AM CST on June 18. In the output of the squeue command, the reason for those jobs will state (ReqNodeNotAvail, Reserved for maintenance). The jobs will start after the scheduled outage completes.
All associated systems (login, dtn, ondemand, compute, storage, etc…) and services (cron, globus access to ceres storage, etc…) will be disabled during this maintenance.
The Atlas cluster will be available during the Ceres maintenance. We strongly suggest copying data from Ceres to Atlas or Juno prior to the maintenance if you plan to continue working through the maintenance. Once maintenance has started, we will not be able to move your data.
A notification will be posted on the SCINet Forum and an email will be sent out once the maintenance is complete.
Please submit any questions you may have via email to scinet_vrsc@usda.gov.
Maintenance · Atlas - All - Tuesday, July 14 · 2026
The Mississippi State University High Performance Computing Collaboratory’s (MSU/HPC2) Computing Office has scheduled maintenance for the Atlas compute cluster.
All associated systems (login, devel, dtn, ood, compute, storage, etc.) and services (cron, globus, ood, etc.) will be disabled during this maintenance.
A notification will be posted once maintenance is complete. For any associated problems, submit a help desk ticket.
Maintenance · Atlas - All - Tuesday, October 13 · 2026
The Mississippi State University High Performance Computing Collaboratory’s (MSU/HPC2) Computing Office has scheduled maintenance for the Atlas compute cluster.
All associated systems (login, devel, dtn, ood, compute, storage, etc.) and services (cron, globus, ood, etc.) will be disabled during this maintenance.
A notification will be posted once maintenance is complete. For any associated problems, submit a help desk ticket.