We have an vCenter with almost 10000 VMs and several hosts. Last friday, suddenly we see VMs being shutdown. the user is not run any commands or powercli scripts. Its just starts shutdown with the message below in the logs. We had over 2000 VMs shutdown.
info 3/13/2015 7:09:18 AM abc\def Task: Initiate guest OS shutdown
info 3/13/2015 7:09:15 AM abc\def Guest OS shut down for <VM name> on <Host name>
Today it happened again. This time a different user who was logged to vCenter from a remote desktop, but claims he did nothing, but noticed the VMs being shutdown and raised the alarm.
Any idea or have you see this happen?