Just an idea for consideration:

Various monitoring sub-processes are not being started by default and monitoring of their utilization from default Zabbix server/proxy health template produces not supported items, e.g.:

• 1x IPMI manager
• 1x IPMI poller
• 1x Java poller
• 1x SNMP trapper
• 1x VMware collector
• 1x report manager (server)
• 1x report writer (server)
• 1x service manager (server)

It is clear, items can be disabled in such case (workaround), but with the risk, they will be forgotten to be re-enabled after those processes later enabled+started. (Secondarily, disabled items may be also unwantedly re-enabled on some cases.)

Please, consider addition of "Check for not supported value" preprocessing step into those items in OOB templates, returning 0% utilization when not supported.

Secondarily, there could be also items monitoring numbers of running instances of all monitored sub-processes by OOB Zabbix server/proxy health (with zero considered as valid value), with triggers reacting on their changes.

Thank you in advance for consideration.

Related ticket: ZBX-21210.