On Friday, 4/23/21 at 8:00 AM, two of the ten servers that host the ls15 Lustre scratch filesystem will be rebooted. This reboot will return these servers to a fault-tolerant state where one server can take over for the other in the event of a hardware failure. This reboot may cause a momentary hang-up for jobs accessing files on the ls15 scratch filesystem. If you have any questions, please contact us at https://contact.icer.msu.edu/.