u/Jastibute

I am not a TrueNAS user but I watched:

https://www.youtube.com/watch?v=RmJMqacoPw4

and in that video, it's mentioned that TrueNAS gives you the option to unlock encrypted datasets with either a passphrase or a key.

When installing Proxmox, IIRC I set both the passphrase and the key. When I boot Proxmox, I input the key to unlock the data. What I can't find anywhere is whether ZFS has the same two options of key and passphrase or is it different to TrueNAS and needs both? Or how does it work?

I'm trying to figure out whether I need to do the key step and back the key up or if I can just use a passphrase and generate a key at a later date if necessary?