This notice has been revised to reflect changes since the previous update:

• Jobs will not be drained prior to the dedicated time; all jobs will be suspended at the beginning of the outage period and resumed once the work is complete.
• The outage period for some of the nodes has been reduced.

Updated Notice: Suspend/Resume for Aitken, Cabeus, Electra, Pleiades, and Lou

A suspend/resume is scheduled for Aitken, Cabeus, Electra, Pleiades, and the Lou mass storage system on June 4, 2025 from 6:00 a.m. to 10:00 p.m. (Pacific Time) to facilitate patching.

• Jobs running on Pleiades, Electra, Aitken, and Cabeus will be suspended at the beginning of dedicated time and resumed when the systems return to production. There should be no other impact to these jobs.
• New jobs cannot be submitted during this time, and there will be no access to the Lustre or NFS filesystems.
• Pleiades front ends (PFEs), Aitken front ends (AFEs), Cabeus front ends (CFEs & CGHFEs), and Lou front ends (LFEs) will be unavailable during this time.

If you have any questions or need assistance please contact the Control Room at (800) 331-8737, (650) 604-4444, or support@nas.nasa.gov.