The usual tasks of our system administrators can be divided in three categories. First of all, there are the daily tasks. This concerns tasks that come up regularly, like making backups, getting an overview of the current server status, checking that all hardware is working as intended and monitoring everything that is going on with our servers.
The second category consists of the most delicate tasks: dealing with the urgent problems. The variety of problems that can occur is huge. There are hardware failures, software bugs, network troubles, etc. Everything that comes up and interferes with the operation of our services has to be dealt with immediately. There are some problems that our team can solve by themselves, but many problems are third-party responsibilities on which they hardly have any influence. Also other network problems that happen completely outside of the data centre may influence our services in a negative way and we cannot really help it.