Look at your Agents and your Hosts. Anything that sends logs to vRLI is counted against that OSI number, not just those that have the Log Insight agent installed.
I checked the agents and the host and i cant identify nothing that send logs beside the IIS plugin or the DC plugin.
is there a posibilty to check it from the LI side? logs to machine with some command?
BTW i removed the check box from vsphere intetgration tab to "ESXI hosts configured" to not send logs from form my ESXI hosts.