Hello everyone!
Virtual system (VS) technology virtualizes a single physical system (PS) into multiple logical systems that are independent of each other. Each VS works as an individual physical device to process services, I share the following internet link where it is explained what VSs is, example of configuration and application scenarios.
https://support.huawei.com/enterprise/mx/doc/EDOC1000166610/d81b1898/example-for-configuring-vss