I'm pulling my hair trying to get a simple cluster going. I first tried Gluster but I have an old system that can't handle the latest version, so I resorted to Ceph. However, I can't get my cluster to work. I tried to find tutorials but everything uses tools on top of Ceph, whereas I'm trying to use it barebones. (I don't trust nfs or samba for this purpose) The three systems I'm trying to cluster together have a variety of Linux distros, and one of them is discontinued, so I can't use a lot of newer stuff. I need to make do with the commands `ceph`, `ceph-mon`, and `ceph-volume`. I do *not* have access to `ceph-disk` which I ran into a lot online. ChatGPT guided me up to a certain point before she started making stuff up, so I need to start from scratch. I just need to share a directory (or rather a block device in the case of Ceph) across these three systems that already have a secure connection to one another. Can somebody please help me out? Thanks in advance