All CIRC resources will be offline starting on Tuesday, June 24th from 7 a.m. EDT through Wednesday, June 25th at 10 p.m. EDT to perform system maintenance, required networking upgrades along with preparations for switching over authentication systems for all CIRC resources. During the maintenance window, CIRC staff will also work with the University’s Data Center staff to perform routine maintenance of the mechanical and electrical components that support the operation of the computing clusters and storage systems. We expect all resources to resume normal operations by the evening of Wednesday, June 25th at 10 p.m. EDT. This maintenance window will apply to all CIRC systems and includes BlueHive, all researcher and department owned equipment, and all CIRC virtual and cloud machines. We anticipate the downtime work to be completed by 10 p.m. EDT on Wednesday, June 25th. CIRC staff will send an email announcement to our email lists when the maintenance window has been successfully completed.