As part of the ongoing effort to upgrade data center capacity for future computing needs, maintenance is scheduled from Wednesday, April 22 at 6 AM through Thursday, April 23 at 5 PM. This will affect all RCAC systems and the Research Network.

During this window, all RCAC systems and research network services will be unavailable, including:

• All Computing Clusters including Bell, Negishi, Gautschi, Scholar, Rowdy, Gilbreth, Hammer, Anvil.
• All Data Storage Systems including Data Depot, Fortress, Anvil Ceph storage, scratch and home storage on clusters, Research Network and ScienceDMZ
• Gateway services including Hubzero, GenAI Studio, Anvil GPT
• www.rcac.purdue.edu
• Geddes
• Globus

How does this maintenance impact you?

• Any Slurm jobs requesting a walltime that would extend past the start of the maintenance will not start and will remain in the queue until after maintenance is complete.
• All active sessions and jobs running on affected systems will be preempted at the start of the outage any queued jobs will not begin until services are restored.
• Access to login nodes, storage systems, and web portals will be unavailable throughout the downtime.
• Automated data workflows that rely on affected systems (e.g., rsync, data pipelines, archive processes) will not function until systems are back online.
• Globus transfers may time out during the maintenance window.

To prepare for this maintenance, we suggest to:

• Download any needed data or scripts before 6:00 AM on April 22.
• Prepare instrumentation devices for the Data Depot to be unavailable and

We appreciate your understanding and cooperation as we complete these necessary upgrades to improve reliability and performance across RCAC infrastructure. For assistance, questions, or concerns contact rcac-help@purdue.edu.

Best regards, Rosen Center for Advanced Computing (RCAC) / Purdue IT

During this time, the Github appliances will receive normal software updates, and you may have difficulties accessing your repositories.

During this time, the Github appliances will receive normal software updates, and you may have difficulties accessing your repositories.

During this time, the Github appliances will receive normal software updates, and you may have difficulties accessing your repositories.

During this time, the Github appliances will receive normal software updates, and you may have difficulties accessing your repositories.

We know how important timely access is to your research and truly appreciate your patience as this gets sorted out. If you have an urgent need or specific concerns, please don’t hesitate to contact us at rcac-help@purdue.edu.

Thanks again for your understanding.

We are actively monitoring the situation and working to resolve the disruptions as quickly as possible. During this time, you may encounter intermittent connectivity problems or degraded performance.

We appreciate your patience and understanding. If you encounter problems that require immediate attention, please contact rcac-help@purdue.edu. For Anvil users, please submit a ticket through ACCESS Help Desk at https://support.access-ci.org/help-ticket.

Please reach out to rcac-help@purdue.edu if you have any questions about this maintenance or need support.