How to use standby mode
Standby mode temporarily stops an Instance. The Instance remains allocated to your account and all data remains on the local storage of the Instance.
Click Instances in the Compute section of the side menu. The Instances page displays.
Click the Instance you want to put into standby mode. The Overview page for that Instance displays.
Scroll down to the Standby mode section
Click Switch to standby mode. A pop-up displays asking you to confirm the action.
Click Switch Instance to standby mode to confirm.
Your Instance is now in standby mode.
An Instance in standby mode is still considered as allocated to your account. This means you will be billed for the Instance, its storage and any flexible IP attached to it. Find out when the billing of your Instance starts and stops. See also how to power off your Instance.