Details
The hostd service might stop responding when you perform an operation, such as power on, clone, suspend, resume, and so on, simultaneously on large number of virtual machines.
Solution
This is a known issue. If the hostd service has stopped responding, restart it by running the following command:
/etc/init.d/mgmt-vmware restart
To avoid this issue, VMware recommends that operations such as power on, clone, suspend, resume, and so on, be performed on fewer number of virtual machines at a time.
Based on VMware KB 1006407
