Anvil is still scheduled for a power outage and maintenance on Saturday, September 19, at 12:00 a.m. through Monday, September 21, at 8:00 p.m. EDT.

Original post: The Anvil clusters and services will be unavailable during two scheduled maintenance events in August and September to support datacenter improvement projects that require power outages.

The first power outage is scheduled for Saturday, August 15, at 12:00 a.m. through Monday, August 17, at 5:00 p.m. EDT.

The second power outage and Anvil maintenance are scheduled for Saturday, September 19, at 12:00 a.m. through Monday, September 21, at 8:00 p.m. EDT.

The Anvil quarterly maintenance previously announced for August 25 has been cancelled, and Anvil willl remain available on August 25.

How Does This Affect You?

Anvil CPU, GPU, and AI clusters, along with AnvilGPT, Anvil Notebook, Anvil Composable, and storage, will be unavailable during all outage windows. Jobs will not run, and new jobs will not start while Anvil is offline. Jobs that cannot be completed before an outage begins will not start. They will remain in the queue until Anvil returns to service.

Any Questions?

If you have questions about these outages or need assistance, please submit a ticket through the ACCESS Help Desk.

Original Post: The Anvil cluster will be unavailable on Tuesday, August 25, 2026, from 8:00 AM to 5:00 PM EDT while scheduled maintenance is performed. During this maintenance window, we will update the operating system and kernel, storage and file systems, system drivers, and software packages.

Any Slurm job requesting a walltime that extends beyond Tuesday, August 25, at 8:00 AM EDT will not start and will remain in the queue until the maintenance is complete.

Anvil is expected to return to full production by Tuesday, August 25, 2026, at 6:00 PM EDT.

Please submit a ticket through ACCESS Help Desk if you have any questions.

We are investigating the issue. The cause and an estimated time to resolution are not yet available. We will provide an update as soon as possible or if service returns to normal.

As of 3:30PM on August 16th 2026, all clusters with the exception of Gilbreth have been brought back online.

As the renovation and capacity improvement project in the MATH datacenter moves into its final stages, two planned maintenance outages are required to begin to utilize the newly installed power and cooling infrastructure. The MATH renovation will result in a 32% increase in floor space, a 60% increase in usable power, and a two-fold increase in cooling capacity, all of which are crucial facility ingredients needed to continue to provide world-class high-performance computing resources to Purdue faculty and the nation.

Here you can see the project’s progress with newly added floor space to accommodate our next HPC investment, though the new showcase window.

The first power outage is planned for Saturday, August 15, 2026, 12 AM through Sunday August 16, 2026, 6 PM. All clusters, storage, and gateway services such as GenAI Studio will be unavailable during this window and will return to service gradually once the power work is complete:

Data Depot, Geddes. and GenAI studio will return online as soon as power is available Sunday evening and will be ready for the work week.

All other HPC resources will return to service throughout the day and evening starting Monday.

Gilbreth cluster is scheduled for regular maintenance, including operating system patches, on August 18 and will return to service by 8 PM on that day.

The second power outage is planned for Saturday, September 19, 2026, 12 AM through Sunday, September 20, 2026, 6 PM. Additional details for the September maintenance will be shared at a later date.

How does this affect you?

All clusters, storage systems, and gateways will be unavailable during the power outage. Jobs will not run and new jobs will not start during this window. Jobs that are expected to not complete by the start of the maintenance will not start until after the maintenance window.

Questions

If you have questions about this outage or need help from our support staff, please contact rcac-help@purdue.edu.

Any jobs which request a walltime which would take them past 08/10/2026 at 8:00am EDT will not start and will remain in the queue until after the maintenance is completed.

During this time, Fortress will receive normal software and hardware updates. Any transfers which request files sent to or from Fortress will either block or fail until this maintenance is completed.

There is no ETA for restoration at this time. We will update as soon as we have more information or if the power is restored.

We will provide another update by 9:00 AM tomorrow.

Jobs that cannot complete before 8:00am will remain pending until after the maintenance window.

No user action is required, but you may wish to adjust any time‑sensitive workflows or job submissions to avoid the maintenance period. If you have questions, please contact the RCAC help desk at rcac-help@purdue.edu.

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

During this time, Fortress will receive normal software and hardware updates. Any transfers which request files sent to or from Fortress will either block or fail until this maintenance is completed.

To protect running jobs, compute nodes will be set to drain starting at 3:00am EDT on June 24. Jobs that cannot complete before 8:00am will remain pending until after the maintenance window.

No user action is required, but you may wish to adjust any time‑sensitive workflows or job submissions to avoid the maintenance period. If you have questions, please contact the RCAC help desk at rcac-help@purdue.edu.