Our IT department has twice weekly scheduled maintenance windows. Every month, a couple of those windows will include taking down parts of the infrastructure f

Our IT department has twice weekly scheduled maintenance windows. Every month, a couple of those windows will include taking down parts of the infrastructure for kernel updates. Frequently, the services involved are clustered and involve no user downtime, that said, it still takes a team of three or four people a few hours to administrate the maintenance, monitoring to be sure everything is going smoothly and putting out any fires that might arise. 3.5 * ~$100 * 1 hour * 2 times a month = ~$700 per month $700 / $3 per server = 200 servers that could potentially be reduced to seconds of maintenance administration instead of an hour.