We have received server down alert , I have checked in Vcenter and found VMtool not running in the server at that time.
So I have logged in Web console and found server is running fine ,up time 21 days. As checked the VMtool services also running fine.
I have found few events related to VM tool in event viewer. Please find the event viewer screenshot below.
Errors: Event ID 7011: A timeout (30000 milliseconds) was reached while waiting for a transaction response from the VMTools service.
Event ID 7046: The following service has repeatedly stopped responding to service control requests: VMware Tools Contact the service vendor or the system administrator about whether to disable this service until the problem is identified. You may have to restart the computer in safe mode before you can disable the service.