Currently HA documentation is very hard to understand for new user - https://www.zabbix.com/documentation/6.0/en/manual/concepts/server/ha
Proposed a set of improvements.
1. Add high level overview - what is HA in Zabbix and what problems it can solve.
2. Real life scenario - step by step setup:
- Agent, Agent2 and Proxy configuration for HA.
- (blocker) During upgrade from 4.4 the an IP address should be removed from Frontend configuration. In 6.0 IP read from DB.
- Log outputs of HA and what it means.
- Screen shots required.