On the morning of Thursday, May 17, the Core Computing Division will make two overlapping changes. Between 4 a.m. and 9 a.m., CCD staff members will move the Fermilab central web servers, including www.fnal.gov and approximately 200 other websites, to a new load balancer to increase web server reliability.
During the maintenance period, visitors to these websites will notice that the sites cannot be accessed. Sites will become accessible beginning at 9 a.m. See the full list of affected websites at the Fermilab Service Desk website.
Between 5 a.m. and 8 a.m., staff will upgrade Andrew File System (AFS) software. AFS users will notice intermittent outages during this time and should reboot their computers when they arrive at work on May 17.
Among other features, the AFS upgrade will allow the use of the kcron utility on computers with Scientific Linux Fermi version 6 or higher.