Resiliency patterns in Azure is a very common / return question. Though over the course of time, I’ve noticed there is a lot of confusing around the architectural patterns involved here. This mostly comes down to the basic illusion that HA (High Availability) and DR (Disaster Recovery) are both met when doing a stretched cluster.
Overview of all the patterns
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Yesterday I received a question whether the combination of Multi-Region & VNET Integration is supported for Azure API Management. My gut feeling told me yes… Though it seems our documentation wasn’t 100% clear on the matter. So I did a quick test to see if it was possible.
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About two weeks ago the public preview was announced for an Azure-to-Azure site recovery service (DR). This was a highly anticipated service to me. So I’m glad it was announced! Today’s post will be on doing a quick setup of the service to get an insight into the look & feel.
What will we be doing today? We’re going to replicate a machine from “West Europe” to “South UK”.
What will the flow be? We’ll have a “Site Recovery Vault” in the target destination. Why? This to ensure that we can leverage the service when the source region went offline. In the source region, we’ll have our VM + Storage Account / Disks, but also a storage account used for caching. All changes make to the disk, will be stored in that cache. On the target side, we’ll have a storage account where a replica (and retention points) of the VM will be kept. Sound pretty easy? Let’s find out…
Continue reading “Testdriving the Azure-to-Azure (A2A) variant of the Azure Site Recovery (ASR) services”