Supercomputer scheduled maintenance is in progress, scheduled through midnight tonight (Wed Feb 25).
During the maintenance, you won't be able to log in to the supercomputer.
We'll alert you when you can log in again.
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Henry Neeman Research Computing Director | Chief Research IT Officer | OU Information Technology Director | OU Supercomputing Center for Education & Research (OSCER) Associate Professor | Gallogly College of Engineering Adjunct Associate Professor | School of Computer Science The University of Oklahoma Engineering Lab 212, 200 Felgar St | Norman OK 73019 P: 405-325-5386 | C: 405-245-3823 | [log in to unmask] http://www.oscer.ou.edu [More ...]
We're experiencing problems with logins to our login nodes on both Schooner and Sooner.
We'll get the problem resolved as quickly as we can.
We apologize for the trouble.
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Henry Neeman Research Computing Director | Chief Research IT Officer | OU Information Technology Director | OU Supercomputing Center for Education & Research (OSCER) Associate Professor | Gallogly College of Engineering Adjunct Associate Professor | School of Computer Science The University of Oklahoma Engineering Lab 212, 200 Felgar St | Norman OK 73019 P: 405-325-5386 | C: 405-245-3823 | [log in to unmask] http://www.oscer.ou.edu <http://www.oscer.ou.edu >
We believe we’re resolved the issue with one home subsystem that was affecting supercomputer logins and directory access.
We apologize for the inconvenience.
John Mueller System Administrator | OU Supercomputing Center for Education & Research (OSCER) The University of Oklahoma 405-317-2638 | http://www.oscer.ou.edu <http://www.oscer.ou.edu >
From: OSCER users <[log in to unmask]> on behalf of Neeman, Henry J. <[log in to unmask]> Date: Saturday, February 21, 2026 at 11:01 AM To: [log in to unmask] <[log in to unmask]> Subject: Login node problems
Before the scheduled maintenance outage starts this coming Wed (Feb 25) at 8:00am:
Jobs that wouldn't finish before the scheduled maintenance outage starts won't be able to start at all, until after the scheduled maintenance outage has ended (planned for Wed Feb 25 midnight CT).
Logistics details will be provided to registrants closer to the tour date.
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Henry Neeman Research Computing Director | Chief Research IT Officer | OU Information Technology Director | OU Supercomputing Center for Education & Research (OSCER) Associate Professor | Gallogly College of Engineering Adjunct Associate Professor | School of Computer Science The University of Oklahoma Engineering Lab 212, 200 Felgar St | Norman OK 73019 P:
