Urgent File Server reboot at 5PM today, April 3rd

We must reboot the main MCS/CELS file server known as sto10.mcs.anl.gov at 5PM today.
We again experienced an unexpected outage on our main file server over the weekend, which took out or workstation and compute node infrastructure.
We have configured additional debug logging that should help in the event this happens again.
We anticipate the outage to last no more than one hour.
During this time logins to the login machines and workstations will not be possible and access to most project
You may need to reboot your machine once the system has come back on line.
We apologize for the lack of notice on this, it is an urgent issue.
Thank you for your patience