In a Ready Stack reference architecture that includes a PowerEdge MX7000 blade chassis, you can scale Ready Stack by adding multiple compute nodes (pods) in the customer data center. You can use the Dell EMC PowerSwitch Z9264F-ON switch to create a simple yet scalable network. The Z9264F-ON switches serve as the spine switches in the leaf-spine architecture. The Z9264F-ON is a multiline rate switch that supports 10/25/40/50/100 GbE connectivity and can aggregate multiple racks with little or no oversubscription.
The following figure shows the scale-out network design:
Figure 7. Multiple compute pods scaled out using leaf-spine architecture
When connecting multiple racks, using the 40/100 GbE uplinks from the rack, you can build a large fabric that supports multiterabit clusters. The Z9264F-ON density enables flattening the network tiers and creating an equal-cost fabric from any point to any other point in the network.
For large domain layer-2 requirements, mVLT can be used on the Z9264F‑ON. The VLT pair that is formed can scale in terms of hundreds of servers inside multiple racks. Each rack has four 40/100 GbE links to the core network, providing bandwidth for traffic between racks.
The following figure illustrates the use of mVLT:
Figure 8. Multiple compute pods scaled out using mVLT