Sole-tenant nodes are an important service on Google Cloud Platform to run workloads that require workload isolation or need to comply to specific licensing requirements that demand dedicated infrastructure. A detailed description what a Sole-Tenant Node is and how it is different from general fleet VMs can be found in the Compute Engine documentation.

Sole-tenant nodes are being used by customers for workload isolation and also for licensing compliance (e.g. bringing Window Server licenses). Throughout the life cycle of a sole-tenant node there might be the necessity of moving virtual machines to another node group or even to another machine family (e.g. moving to N2 from N1). Refer to the documentation, to learn more about Node affinity and anti-affinity options.