Building Hybrid Clouds with Azure Stack
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Services summary

As you have seen, these VMs provide the management environment of Azure Stack, and they are all available only in one instance. But we all know that scalability means deploying more instances of each service, and as we already have a built-in software load balancer, the product itself is designed for scale. Another way to scale is to implement another Azure Stack integrated system in your environment and provide a place familiar to Azure users. Indeed, there are two ways to scale. A good question is what scale unit will we need: if we need more performance, a scale with more VMs providing the same services is a good choice. The other option is to scale with a second region, which provides geo-redundancy.