This should have been posted in the Log Insight sub-forum.
You will need to ensure vRLI is integrated with vCenter so it collects on the Tasks and Events, and integrated with the ESXi hosts so it picks up their logs. You can then either re-use some of the existing vSAN widgets (one may already exist) or you can customize it to display those events. I don't have a step-by-step process for you.