If you are reading this book, you have, most probably, already used and installed Zabbix. Most likely, you did so on a small/medium environment, but now things have changed, and your environment today is a large one with new challenges coming in regularly. Nowadays, environments are rapidly growing or changing, and it is a difficult task to be ready to support and provide a reliable monitoring solution.
Normally, an initial deployment of a system, a monitoring system, is done by following a tutorial or how-to, and this is a common error. This kind of approach is valid for smaller environments, where the downtime is not critical, where there are no disaster recovery sites to handle, or, in short, where things are easy.
Most likely, these setups are not done by looking forward to the possible new quantity of new items, triggers, and events that the server should elaborate. If you have already installed Zabbix and you need to plan and expand your monitoring solution...