[Axsuul]

Nothing happens to the data -- it's still intact when the host comes back up. Happy to clarify further though if that's not what you meant.

[dijit]

Ah, so your systems are down until you fix a node, and if the drive(s) fail you have a dead node you're stuck restoring backups.

I guess that's fine, I'm just used to having labs to test how I can avoid single instance failures. :)

[Axsuul]

The path to redundancy is there if you need it but it's not something you have to go with from the start. You can also run a database with replicas to handle any drive failures, etc. I have been running a production-grade system with thousands of customers like this for a few years.