The post is super light on details, it's hard to visualize if it's worth it or not.

For examples:

- How much data are they working with? What's the traffic shape? Using NFS makes me think that they don't have a lot of data.

- What happened when their customers accidentally sent too much events? Will they simply drop the payload? In bare-metal they lose the ability to auto-scale quickly.

- Are they using S3 or not, if they are, did they move that as well to their own Ceph cluster?

- What's the RDBMS setup? Are they running their own DB proxy that can handle live switch-over and seamless upgrade?

- What's the details on the bare metal setup? Is everything redundant? How quickly can they add several racks in one go? What's included as a service from their co-lo provider?