All NAS computing systems and the Lou mass storage system will be unavailable on Wednesday, July 6, from 10:00 a.m. to 11:59 p.m. (Pacific Time) to facilitate urgent system patching.

The following services will be affected:

• Aitken, Pleiades, Electra, and Endeavour will not be available during this period. Jobs cannot be submitted, and there will be no access to the Lustre, NFS, or BeeGFS filesystems.
• All jobs running when the dedicated time begins will be suspended for the duration and resumed when patching is complete. Interactive PBS jobs (jobs created with "qsub -I") submitted from front ends will be killed when those front ends are rebooted for their patching.
• Pleiades front ends (PFEs) and Lou front ends (LFEs) will be unavailable during this period.

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