Cheyenne powered down

February 25, 2020

The Cheyenne cluster was powered down this morning, on schedule, at 6 a.m. MST. The system is expected to be returned to service no later than Saturday evening, February 29. 

During this outage CISL staff and HPE engineers will perform critical infrastructure maintenance, repairs, and system software updates. The work is expected to have a significant impact on system performance, reliability and security. Users will be kept apprised of the effort throughout the week in the CISL Daily Bulletin and the Notifier service.

The Casper cluster, GLADE and Campaign Storage file systems, data-access nodes, and HPSS will remain available throughout the week except for approximately four hours beginning at 8 p.m. MST tonight, February 25. Users can access these systems by logging directly onto Casper at