YYYY-MM-DDTHH:MM:SS.833Z cpu58:34255)qlnativefc: vmhba2(5:0.0): Recieved a PUREX IOCB woh oo In the /var/log/vmkernel log file you see entries similar to: ESXi 5.5 and 6.x hosts stop responding after running for 85 daysĮSXi 5.5 and 6.x hosts stop responding after running for 85 days.