You can shut down a user-managed notebooks instance to stop any processing for the instance.
In addition to other potential costs (see Pricing), you incur costs for running an instance. Shutting the instance down when you are not using it stops you from incurring costs for running the instance but not other potential costs.
To shut down a user-managed notebooks instance, follow these steps:
Go to the User-managed notebooks page in the Google Cloud Console.
Select Open JupyterLab for the instance that you want to open.
It is important to stop all running processes in case there are operations that need to complete before you shut down your user-managed notebooks instance. For example, I/O processes that are writing to disk.
To stop all running processes:
Select the Running Terminals and Kernels tab to show all of the processes running.
Click Shutdown all next to each running process.
Close the browser tab or window for your user-managed notebooks instance.
Return to the User-managed notebooks page in the Google Cloud Console.
Select the instance that you want to shut down, and then select Stop.