For my own, and others' future reference:
First, I checked what devices I'll need to use:
root@sam:~# storcli /c0 /eall /sall show
CLI Version = 007.0813.0000.0000 Dec 14, 2018
Operating system = Linux 4.15.18-12-pve
Controller = 0
Status = Success
Description = Show Drive Information...