<p>I'm running the following helm chart (<a href="https://github.com/helm/charts/tree/master/stable/prometheus" rel="nofollow noreferrer">https://github.com/helm/charts/tree/master/stable/prometheus</a>) with server.replicaCount    =2 and server.statefulSet.enabled = true.</p>

<p>For storage i use two Manage Disks (not Azure Files that is not POSIX) (2 PV and 2 PVC) are created during the deployment of the chart.</p>

<p>My question is:
Is this an HA solution? Are the metrics written to both prometheus instances (a service with a public ip and and headless "service" are created) and replicated to both disks?</p>

<p>How this replicas really work?</p>

<p>Thanks,</p>

<p>Sadly, as Piotr noted, this is not a true HA offering and Thanos is generally the preferred way to go for this kind of setup, but not without it's own gotchas. The amount of clusters you have is a factor, and you might need some sort of tooling account to be able to follow changes all the way through.</p>

<p>What I can offer you is <a href="https://www.youtube.com/watch?v=WlzSPW5030c" rel="nofollow noreferrer">this excellent talk</a>, which includes a live demo and shows how this works in practice.</p>
