| Ohio Supercomputer Center

Planned Globus maintenance downtime Oct 24 2026

Planned Globus maintenance downtime will take place on Saturday, October 24, 2026, from 10:30 AM to 11:30 AM EDT (9:30 AM US Central). Globus services will undergo database upgrades and will be unavailable for up to 1 hour, affecting Globus Auth, Transfer, Groups, Flows, Search, Timers, Compute, GlobusID, and Action Providers. Check Globus page for more details: https://www.globus.org/blog/2026-10-24-maintenance.

HDF5 2.2.0 available on Pitzer

Date:

Wednesday, October 14, 2026 - 3:45pm

System(s):

Pitzer

HDF5 2.2.0 is available on Pitzer with gcc 12.3.0 and either OpenMPI 5.0.10 or MVAPICH 4.1

use module spider hdf5/2.2.0 to see more

Scratch Space Purge Schedule Update: Changing to Daily Removals

Due to ongoing scratch space challenges and high utilization, the data purge frequency is changing from every Wednesday to daily. Files and data that have not been accessed for 60 days or more will be automatically removed from the system every day. Please ensure that you regularly back up or move any important data to your project or permanent storage directories to prevent unintended loss.

Update QGIS Launch Form

Date:

Tuesday, September 8, 2026 - 10:00am

System(s):

Gateway

Pitzer

We are updating the QGIS launch form on September 8, 2026 to remove the node-type selection. The new form automatically allocates the node type based on your requested compute resources.

Emergency Scratch Purge on August 26

Please be advised that an emergency scratch purge will be executed on OSC Research Data Storage today, August 26, 2026, starting from 3pm. See this for more details: https://www.osc.edu/resources/technical_support/known_issues/emergency_maintenance_research_data_storage_scratch_purge

Expanding Resource Selection Across All OnDemand Apps

Date:

Monday, August 24, 2026 - 10:30am

System(s):

Ascend

Cardinal

Pitzer

Following our recent update to the OnDemand (OOD) Desktop launch form, we are expanding this job type resource interface across all applications within the OOD instance throug

Update Jupyter Launch Form

Date:

Tuesday, August 25, 2026 - 12:00pm

System(s):

We are updating the Jupyter launch form to remove the node-type selection on August 25 2026. The new form automatically allocates the node type based on your requested compute resources.

System Downtime August 11 2026

A downtime for OSC HPC systems is scheduled from 7 a.m. to 9 p.m., Tuesday, August 11, 2026. The downtime will affect the Pitzer, Cardinal and Ascend Clusters, web portals, the state-wide licenses and HPC file servers. MyOSC (the client portal) will be available during the downtime. In preparation for the downtime, the batch scheduler will not start jobs that cannot be completed before 7 a.m., August 11. Jobs that are not started on clusters will be held until after the downtime and then started once the system is returned to production status.