I recently had a problem with ESXi, forcing the server to reboot.
I received an answer after VMware SR.
They said storage was under load and that the storage was lock , and so HA is not operated
They said answer is disable ATS.
However, I know that ATS Disable affects storage performance from blog
What is the difference between disable ATS and disable ATS Heartbeat?
What happens when only Disable ATS Heartbeat ?
Storage is EQ6210 (iSCSI).
I don't know if this storage supports ATS or not