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Requiring a dedicated volume with at least 50 GB of space and 1500 privisioned IOPS just for etcd [1] seems excessive to me. How big a cluster, e.g. how many nodes and pods, is this for?

[1]: https://gravitational.com/gravity/docs/ver/6.x/requirements/...

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We are staying on the safe side here on our recommendations. We have seen many scenarios when high latency on volumes on AWS creates a lot of problems even for small 3 node clusters.

Even small clusters with K8s operators doing complex work (e.g.: autoscaling) can generate a lot of etcd traffic updating state. I'm not sure how (etcd) stateless Istio and other meshes are, too.

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