Shortly after midnight Saturday morning, I will be rebooting all of the Intel Linux based servers for a kernel upgrade.  Between the actual reboots and checking to make sure NIS and NFS mounts properly re-establish after rebooting, this will probably take about two hours but no one service should be done for more than about ten minutes for this process.

     Then after this some servers I will be taking down to make backups.  This may take longer for some machines, up to about 45 minutes.