I'm assuming that you run Kafka within AWS. Much of the hardware requirements/suggestions I've seen for Kafka are all for non-virtualized environments. If you can get into it, could you share some details...

- What is the size of your Kafka cluster

- What instances types do you use?

- Do you use EBS or use ephemeral storage?

- How much do you over-provision to deal with instance loss?

- Any other gotchas/considerations?

Thanks!