Kicking the Tires on OpenEBS for Cluster Storage

In my case things are a little more difficult because Hetzner’s dedicated servers come with software RAID1’d disks (RAID1 = multiple copies of the same data). I did choose to remove the code that disassembled software RAID (you can approximate it by scaling your raid cluster down to 1 disk, then doing stuff with the second one without going into hetzner rescue mode) – I’m going to leave the drives RAID1’d on hetzner boxes from now on. I’m basing this understanding off the following quote:

Hopefully they don’t mean this in the same way Rook/Ceph did, and I can just give OpenEBS a folder on-disk (which again is actually 2 disks software-RAIDed together) and OpenEBS will manage sizing and dynamic provisioning of data and expose it via iscsi.

Source: vadosware.io