Yeah I’ve used lvm with snapshotting with great success. Raid is great, just remember it is only one measure for data retention. Another optional addition would be add a hot spare.

Sounds like a plan. Only optimal if you situation calls for it. Some things to keep in mind, are is software or hardware raid. Also, backups out of this setup would be good. I like snapshotting, so that might be something you might want to think bout.