CISL system engineers will deploy a minor operating system image update to Cheyenne compute node racks this week in order to facilitate additional file system access. The updates will be done one rack at a time starting on Wednesday, April 12, in a series of rolling reservations and reboots. Users may notice a slight reduction in throughput as each rack is drained and subsequently reintegrated into the system.

The changes will allow us to mount the Campaign Storage file system on Cheyenne later this summer and enable a smoother overlap between the Cheyenne and Derecho systems.