Infrastructure News Type: Outage Partial

Affected Infrastructure: jetstream2-gpu.indiana.access-ci.org

Start Date: October 7, 2025, 12:00 p.m.

End Date: October 8, 2025, 12:00 a.m.

Jetstream2 GPU resources will undergo routine monthly maintenance on October 7, 2025 from approximately 11AM to 11PM UTC (convert to local time (https://dateful.com/convert/utc?t=11am)). This maintenance will include firmware updates and other necessary changes to improve GPU performance. During this maintenance window users may experience intermittent delays and unavailability of their GPU resources. As always, we will do our best to keep disruptions to a minimum during this time. We strongly advise preserving your work prior to October 7 by: - Safely shutting down any active processes or jobs - Backing up essential data outside of Jetstream2 Please note: Jetstream2 CPU, Large Memory, and Storage resources will not be affected. If you have any questions or concerns, please contact Jetstream2 Support at help@jetstream-cloud.org.

Posted: March 20, 2026

Infrastructure News Type: Outage Partial

Affected Infrastructure: aces.tamu.access-ci.org

Start Date: September 27, 2025, 11:00 p.m.

End Date: September 29, 2025, 3:00 p.m.

The TAMU ACES cluster will be operating at reduced capacities with a subset of nodes powered down during data center power maintenance from 6p CDT Saturday September 27 to 10a CDT Monday September 29.

Posted: March 20, 2026

Infrastructure News Type: Outage Full

Affected Infrastructure: launch.tamu.access-ci.org

Start Date: September 27, 2025, 11:00 p.m.

End Date: September 30, 2025, 5:00 p.m.

The Launch cluster maintenance has been extended to 12pm CDT Tuesday September 30 The TAMU Launch cluster will be unavailable from 6p CDT Saturday September 27 to 10a CDT Monday September 29 for regular maintenance and the 9/28 data center partial power outage. Quotas will also be enabled for user/project scratch directories during this maintenance window

Posted: March 20, 2026

Infrastructure News Type: Degraded

Affected Infrastructure: stampede3.tacc.access-ci.org, ranch.tacc.access-ci.org

Start Date: September 27, 2025, 5:06 a.m.

End Date: October 1, 2025, 5:00 p.m.

Final Update: 10/1/2025 14:15 CDT All ACCESS available TACC resources are now back in full production. If you have questions about other TACC resources you can refer to User Updates here: https://tacc.utexas.edu/news/user-updates/ ---- Update: 09/30/2025 17:00 CDT Most TACC services have been restored since Saturday’s power outage. Thanks to the dedicated work of the team, all large systems are in production, with the exception of Frontera which is running a limited number of jobs while performance issues on one of the scratch filesystems are addressed. You may see some services at less than 100% throughput while replacement parts trickle in for components that were damaged. If anything appears offline that should not be, please submit a ticket here: https://tacc.utexas.edu/portal/tickets Thank you for your continued patience while the admins continue to work to restore services. ---- UPDATE: 9/29/25 Stampede3 has partially recovered from an emergency maintenance. /corral is not available and queues will be operating with reduced node counts as we work to bring the system back up to 100%. ---- Original - 9/27/25 The Texas Advanced Computing Center facilities experienced a site wide power outage at 6:12 am CDT. At this time, admins are on site and working to restore all systems to production.

Posted: March 20, 2026

Infrastructure News Type: Reconfiguration

Affected Infrastructure: anvil.purdue.access-ci.org, anvil-gpu.purdue.access-ci.org

Start Date: September 23, 2025, 1:00 p.m.

End Date: September 23, 2025, 9:00 p.m.

Update: As of 10:30 am EDT, September 23, 2025, we have finished Anvil Open OnDemand Dashboard upgrade. We are thrilled to announce the launch of the new version of our re-designed dashboard for Open OnDemand on Anvil! This upgrade is designed with a more intuitive interface and a host of more powerful new features to enhance your experience on Anvil. Please check the original post for the overview of all the amazing new features AND Get Started Today Access the new dashboard by visiting https://ondemand.anvil.rcac.purdue.edu. We’ve prepared a comprehensive guide (see “New Features” page in the new dashboard) to help you navigate and make the most out of the new features. Have questions? Need assistance? Require more features? Our support team is here to help! Contact us through ACCESS Help Desk at https://support.access-ci.org/help-ticket (https://support.access-ci.org/help-ticket**). We’d love to hear your feedback as you explore the new gateway. Your input is invaluable in shaping the future of our HPC services. Thank you for being part of this journey. Let’s push the boundaries of discovery together! Original post: The Open Ondemand service for Anvil will be unavailable from Tuesday, September 23 at 9:00am EDT, 2025 to Tuesday, September 23 at 5:00pm EDT, 2025. During the maintenance, Anvil team will perform a reconfiguration to the Open Ondemand dashboard for Anvil which will upgrade the current dashboard to a new version with new features listed below. What’s New on the dashboard v2? - New UI design: Brand new UI design to present a more modern look. - Anvil AI Partition Status: Adding partition status check for the new Anvil AI partition. - Cluster Status and Node Status: Allow users to have a glance of overall Anvil cluster status or dive deep into the status for specific compute node. - New Announcement Widget: Now you can view past announcements with a scroll! - New My Jobs page: Adding more features to My Jobs page. - New Job page: View or control your specific jobs more easily through the job page. - New Performance Metrics page: Now you can view your job performance metrics on Anvil within any time span. What will impact you? - All Slurm jobs on Anvil (including jobs that have already submitted through Open Ondemand before this maintenance) will continue and NOT be impacted. - All functions related to Open Ondemand including login will be unavailable during the maintenance. Anvil Open Ondemand service will return to full production by Tuesday, September 23 at 5:00pm EDT, 2025. Please submit a ticket through ACCESS Help Desk at https://support.access-ci.org/help-ticket (https://support.access-ci.org/help-ticket**) if you have any questions or suggestions.

Posted: March 20, 2026

Infrastructure News Type: Outage Full

Affected Infrastructure: expanse.sdsc.access-ci.org, expanse-gpu.sdsc.access-ci.org

Start Date: September 22, 2025, 1:00 p.m.

End Date: September 22, 2025, 9:00 p.m.

Dear Expanse User, The Expanse Slurm maintenance has been completed and we have released the reservation. The system is running submitted jobs per available resources and priority. Thanks SDSC User Services >>>> Dear Expanse User, The maintenance on Expanse is taking longer than expected and we are extending the maintenance reservation to 6PM(PT). We will update once the maintenance is complete. Thanks SDSC User Services Staff >>>>> Dear Expanse User, We will have a maintenance on Expanse 6AM-Noon (PT), September 22, 2025. During this maintenance we will reconfigure the Slurm scheduler to remove some nodes that were moved to a different cluster. We have a reservation in place to prevent jobs from running during this maintenance. The "squeue" output will show "ReqNodeNotAvail, Reserved for maintenance" for jobs that do not fit in the time period before the maintenance begins. These jobs will run after we release the maintenance reservation. Thanks SDSC User Services Staff

Posted: March 20, 2026

Infrastructure News Type: Outage Partial

Affected Infrastructure: aces.tamu.access-ci.org, launch.tamu.access-ci.org

Start Date: September 19, 2025, 11:00 p.m.

End Date: September 21, 2025, 5:00 a.m.

The TAMU ACES and Launch clusters will be be operating at reduced capacities with a subset of nodes powered down during data center power maintenance from 6p Friday September 19 to midnight Sunday September 21.

Posted: March 20, 2026

Infrastructure News Type: Outage Full

Affected Infrastructure: bridges2-em.psc.access-ci.org, bridges2-gpu.psc.access-ci.org, bridges2-rm.psc.access-ci.org, bridges2-ocean.psc.access-ci.org

Start Date: September 19, 2025, 6:00 p.m.

End Date: September 19, 2025, 9:00 p.m.

PSC Bridges-2 is currently unavialable. Our admins are working to restore the system to full service.

Posted: March 20, 2026

Infrastructure News Type: Outage Partial

Affected Infrastructure: registry.access-ci.org

Start Date: September 8, 2025, 2:00 p.m.

End Date: September 8, 2025, 2:30 p.m.

On September 8, 2025, several plugins used by the ACCESS User Registry (https://registry.access-ci.org/) will be updated. The following features will be improved: - Update the DynamoDB provisioner to include group numbers along with group names - Update text on the Select Your Organization page during user enrollment - Set/unset a session cookie used by the ACCESS universal navigation bar so login/logout links work - Store users' PHP sessions in DynamoDB to deter creation of multiple user enrollment petitions Server instances will be restarted during this update which may cause in-progress registrations/logins to fail. If you experience issues during the update, please open a ticket (https://support.access-ci.org/help-ticket).

Posted: March 20, 2026

Infrastructure News Type: Reconfiguration

Affected Infrastructure: identity.access-ci.org

Start Date: August 28, 2025, 2:00 p.m.

End Date: August 28, 2025, 2:30 p.m.

On August 28, 2025, the ACCESS Identity Provider (https://idp.access-ci.org/idp) (idp.access-ci.org) was updated to v5.1.6 to address a security issue (https://shibboleth.net/community/advisories/secadv_20250826.txt).

Posted: March 20, 2026

Infrastructure News Type: Outage Partial

Affected Infrastructure: anvil.purdue.access-ci.org, anvil-gpu.purdue.access-ci.org

Start Date: August 18, 2025, 4:00 p.m.

End Date: August 20, 2025, 10:00 p.m.

Anvil is experiencing a problem with new user and allocation propagation. Our engineers are working on the fix, and will keep this updated. The problem has been fixed on 5 pm.

Posted: March 20, 2026

Infrastructure News Type: Outage Partial

Affected Infrastructure: registry.access-ci.org

Start Date: August 14, 2025, 1:00 p.m.

End Date: August 14, 2025, 1:30 p.m.

On August 14, 2025, a plugin used by the ACCESS User Registry (https://registry.access-ci.org/) will be updated. This update will enable the creation of ePPN Identifiers for linked accounts which assert ePPNs. Server instances will be restarted during this update which may cause in-progress registrations/logins to fail.

Posted: March 20, 2026

Infrastructure News Type: Outage Partial

Affected Infrastructure: aces.tamu.access-ci.org, launch.tamu.access-ci.org

Start Date: August 2, 2025, 1:00 a.m.

End Date: August 2, 2025, 11:00 a.m.

The TAMU campus network will be undergoing maintenance from 8p CDT Aug.1 to 6a CDT Aug. 2. The TAMU ACES, FASTER, and Launch clusters will be inaccessible to ACCESS users for at least the first 20 minutes of the maintenance window. During the remainder of the maintenance, there may be intermittent connectivity issues for accessing the TAMU clusters. The network maintenance will not impact running jobs on the TAMU clusters.

Posted: March 20, 2026

Infrastructure News Type: Outage Partial

Affected Infrastructure: anvil-gpu.purdue.access-ci.org

Start Date: July 31, 2025, 9:00 p.m.

End Date: August 1, 2025, 5:00 p.m.

Update: The Anvil AI nodes (Nvidia H100 GPUs) have been resumed at 11:10am EST. Thank you for your patience. Original: The Anvil AI nodes (Nvidia H100 GPUs) are currently powered off due to ongoing cooling issues in the data center. Facilities has confirmed that the cooling system will not be restored until sometime tomorrow, and the H100 GPUs will remain offline until it is safe to bring it back online. Job scheduling remains paused, but file access is still available during this downtime. We now anticipate service restoration sometime tomorrow (Friday, August 1). We will provide additional updates as more information becomes available or by 12:00pm EST. Thank you for your patience and understanding.

Posted: March 20, 2026

Infrastructure News Type: Outage Full

Affected Infrastructure: xdmod.access-ci.org

Start Date: July 30, 2025, 6:30 p.m.

End Date: July 31, 2025, 5:00 p.m.

The ACCESS XDMoD portal will temporarily be unavailable today, 07/30, from approximately 13:30 EDT until tomorrow, 07/31, 12:00 EDT. The service will be completely unavailable for routine infrastructure updates.

Posted: March 20, 2026

Infrastructure News Type: Outage Full

Affected Infrastructure: registry.access-ci.org

Start Date: July 22, 2025, 10:00 a.m.

End Date: July 22, 2025, 11:00 a.m.

On July 22, 2025, the ACCESS User Registry (https://registry.access-ci.org/) will be upgraded to COmanage Registry (https://spaces.at.internet2.edu/display/COmanage/COmanage+Registry+User+Guide) v4.4.2. This upgrade requires a database schema update which will result in a total service outage of approximately 15-30 minutes. During the outage, visitors to https://registry.access-ci.org/ will be redirected to this infrastructure news notice. Users will not be able to register for ACCESS accounts, make changes to their existing ACCESS accounts, or create/modify OIDC client registrations. Logging on to other ACCESS websites should not be affected. For questions or concerns with this update, please contact help@cilogon.org (mailto:help@cilogon.org) or open an ACCESS Help Ticket (https://access-ci.atlassian.net/servicedesk/customer/portal/2/create/30).

Posted: March 20, 2026

Infrastructure News Type: Reconfiguration

Affected Infrastructure: identity.access-ci.org

Start Date: July 21, 2025, 5:00 p.m.

End Date: July 21, 2025, 5:30 p.m.

On July 21, 2025, the ACCESS Identity Provider (https://idp.access-ci.org/idp) (idp.access-ci.org) was updated to address several Tomcat vulnerabilities (https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.43).

Posted: March 20, 2026

Infrastructure News Type: Outage Full

Affected Infrastructure: delta-cpu.ncsa.access-ci.org, delta-gpu.ncsa.access-ci.org

Start Date: July 21, 2025, 12:00 p.m.

End Date: July 21, 2025, 5:00 p.m.

On Monday, July 21st there will be an emergency system outage on both Delta and DeltaAI to perform a corrective file system check (fsck) on the /work (aka scratch) file system. The fsck is needed to correct issues on the file system that are causing an increasing number of issues with files or directories that can not be removed or other IO errors. The issue is believed to be metadata only, there is no indication of any data corruption. The system outage will begin at 7AM and last until noon CDT. In order to complete the unmount of /work processes on the logins that have open files on work will be killed and/or it is possible that the logins will need to be rebooted. Adjust job wall time when submitting jobs to fit jobs into the time remaining before the maintenance begins. Please send questions or questions by using the NCSA help portal at https://help.ncsa.illinois.edu or by email to help@ncsa.illinois.edu (mailto:help@ncsa.illinois.edu). - Delta and DeltaAI Project Teams

Posted: March 20, 2026

Infrastructure News Type: Outage Partial

Affected Infrastructure: expanse.sdsc.access-ci.org, expanse-gpu.sdsc.access-ci.org, expanse-ps.sdsc.access-ci.org

Start Date: July 18, 2025, 1:00 p.m.

End Date: July 19, 2025, 1:00 p.m.

Dear Expanse User, We are currently seeing some issues with the Lustre metadata server and that will cause filesystem write issues. Please pause/hold any Lustre based jobs and we will update once the issue is resolved. Thanks SDSC User Services

Posted: March 20, 2026

Infrastructure News Type: Outage Partial

Affected Infrastructure: xdmod.access-ci.org

Start Date: July 17, 2025, 2:00 p.m.

End Date: July 18, 2025, 2:00 p.m.

ACCESS XDMoD will be upgraded to version 11.0.2 on Thursday, July 17 at approximately 10:00 EDT. Various data in ACCESS XDMoD may be unavailable during the upgrade. Service is expected to be fully restored within 24 hours. Once the upgrade is started, release notes will be available at https://xdmod.access-ci.org/#main_tab_panel:about_xdmod?Release%20Notes

Posted: March 20, 2026