Hi all.
Server OS: Windows Server 2012 R2
Horizon View version: 6
Guest desktop OS: Windows 8.1
By Power Policy al desktops in a pool is set to "Power Off".
By pool Policy 25 machines of 70 are set to "Remained Power On".
Today morning all users can't connect to the pool.
Horizon View Console showing an event with Audit failure "Unable to launch from Pool FTPool01 for user Domain\Username: The Pool is empty".
After manually power on some VMs through vSphere, console all VMs started up automatically.
I cannot find any information about why all machines are powered off and after manual power on of some machines, the pool began working normally.