The Standby state is a convenient way to free most of the resources used by an otherwise idle farm. The Standby state also preserves the farm's design and data for easy and rapid reactivation at a later date.
In the Standby state, servers and load balancers are returned to the free pool. The farm design, including the network configuration, resources, such as, IP addresses and VLANs, and disk data are preserved.
In the case of servers with local disks, the system makes an image copy of all disks before wiping the volumes and returning the servers to the free pool.
All contract quotas and monitoring configurations information are preserved.