By default, VMware Live Site Recovery sets all virtual machines in a new recovery plan to recovery priority level 3. You can increase or decrease the recovery priority of a virtual machine. The recovery priority determines the shutdown and power-on order of virtual machines.
If you change the priority of a virtual machine, VMware Live Site Recovery applies the new priority to all recovery plans that contain this virtual machine.
VMware Live Site Recovery starts virtual machines on the recovery site according to the priority that you set. VMware Live Site Recovery starts priority 1 virtual machines first, then priority 2 virtual machines second, and so on. VMware Live Site Recovery uses VMware Tools heartbeat to discover when a virtual machine is running on the recovery site. In this way, VMware Live Site Recovery can ensure that all virtual machines of a given priority are running before it starts the virtual machines of the next priority. For this reason, you must install VMware Tools on protected virtual machines.