All NAS systems will be unavailable on Wednesday, October 16, to facilitate system maintenance and patching. Please see the information below pertaining to the various node types your jobs may be using.

Maintenance Reservation for Aitken Cascade Lake and Rome Nodes

There will be a maintenance reservation for Aitken Cascade Lake and Aitken Rome nodes on Wednesday, October 16, from 5:00 a.m. to 11:59 p.m. (Pacific Time). The PBS job scheduler will not start any jobs that are projected to end after 5:00 a.m. on October 16. See Running Jobs Before Dedicated Time in the HECC Knowledge Base for helpful information on managing your jobs in advance of an outage.

Note: Any jobs still running on the Aitken Cascade Lake and Rome nodes will be drained from the system before 5:00 a.m. on October 16. (Aitken’s Milan nodes will not be drained as part of this reservation.)

Suspend/Resume for Pleiades, Electra, Endeavour, and Lou

There will be a suspend/resume for Pleiades, Electra, Endeavour, and Lou on Wednesday, October 16, from 10:00 a.m. to 11:59 p.m. (Pacific Time) to facilitate system patching. The following services will be affected:

• Pleiades, Electra, Aitken, and Endeavour will not be available during this period, jobs cannot be submitted, and there will be no access to the Lustre or NFS filesystems.
• Jobs on Pleiades, Electra, and Endeavour nodes will be suspended at the beginning of the period and will be resumed at the conclusion of the period. There should be no other impact to these jobs.
• Pleiades front ends (PFEs) and Lou front-ends(LFEs) will be unavailable during this period.

See Running Jobs Before Dedicated Time to learn how to manage your jobs to run before dedicated 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.