The Dell EMC PowerOne system represents a new paradigm for data center infrastructure operations and life cycle management. Greenfield workload deployments are ideal candidates to adapt to the new operational model, but organizations might also want to include existing business workloads in the new platform.
The default mechanism for connecting a PowerOne system to an existing network is by means of Layer 3, which has numerous benefits in terms of scalability, failure domain isolation, and ease of operation. Against this background, organizations might have to use traditional Layer 2 technologies at the integration point, in tandem with Layer 3, to satisfy the following two key use cases:
When customers add a PowerOne system to their infrastructure, they can create Cluster Resource Groups (CRGs). A CRG is an aggregation of compute, storage, and networking infrastructure assets created to satisfy the resource needs of new application workloads. But what about existing workloads that are already running in the infrastructure? Customers might not want to re-IP or lift-and-shift their workload VMs and subnets so that they can migrate them to a PowerOne system. Generally, a re-IP process is highly disruptive for existing applications, both operationally and technically.
Situations also arise in which organizations want to natively extend existing Layer 2 constructs from their network into the PowerOne environment. Such scenarios include bare-metal server or appliance integrations for service chaining or excess resource allocations.