After Zabbix is installed and configured, a moment comes when maintenance tasks become important. In this last chapter, we looked at three important tasks:
Monitoring Zabbix itself: We covered internal items that allow figuring out how much data the Zabbix server or proxy is receiving, monitoring cache usage, verifying how busy the internal processes are, how many unsupported items we have, and a few other things.
Making backups: We discussed the suggested and popular approaches to making backups (and restoring from them, too) of the most important thing in Zabbix—its database.
Upgrading Zabbix: We found out the differences between minor and major version upgrades and how the database is automatically patched by the Zabbix server. We also learned about LTS versions, which are supported for 3 years, and for 2 extra years for critical and security fixes, while the other versions are supported for about 1 month from when the next version is released.
While talking about upgrades, we...