@jerry1333 said: There is nothing else on that host and this is only host in pool but it's using 30% of cpu all the time? it's not using 30% of CPU, you see a graph of cumulated (switch is on) core consumption of your 32 cores. never switch this on. it adds up like that : 32x1%=32%, wrongfully letting you think you are at 30%ish CPU usage.

Good news, or at least, that's my understanding. This was a known bug and it's fixed in XO 6.4 (released April 29, PR #9681). Upgrading should make those alerts disappear for good. Thanks for the video, it made the report unambiguous.