Hi Hobbit,
In the V200R010 and later versions, the function of backing up the current configuration file is enabled by default. And the local storage path is $_backup/running_config/. After the configuration changes for two hours, the device automatically backs up the current running configuration to the local directory. If the device configuration is lost, you can use the backup file in this path to restore the configuration.
You can use the configuration copy file to running command to execute commands in a specified configuration file.
Glad to help you! Any further questions, let us know.