Is there any place in NSX (or log insight or vRealize Ops Mgr) where you can see when a
pool member went UP or DOWN?
When you run the "show service loadbalancer pool" command on the ESG providing the LB service, you'll see the date/time of the "last state change" of each individual member of the pool:
When you run the "show service loadbalancer pool" command on the ESG providing the LB service, you'll see the date/time of the "last state change" of each individual member of the pool:
Log insight with the latest NSX-V content pack also has the same info in the "Load Balancer - VIP" section on the "VIP pool member status" graph.