My current setup is an Odroid H3+ with 2x8TB hard drives configured in raid 1 via mdadm. It is running Ubuntu server and I put in 16GB of RAM. It also has a 1TB SSD on it for system storage.

I’m looking to expand my storage via an attached storage drive enclosure that connects through a USB 3 port. My ideal enclosure has 4 bays with hardware raid support, which I plan to configure in raid 10.

My main question: How do I pool these together so I don’t need to balance between the two? Ideally all binded to appear as a single mount point. I tried looking at mergefs, but I’m not sure that it would work.

I ask primarily because I write scripts which moves data to the current raid 1 setup. As i expand the storage, I want it to continue working without worrying about checking for space between the two sets.

Be real with me - is this dumb? What would you suggest given my current stack?

  • numbness3416OP
    2·
    10 months ago

    Thanks for the ideas - at first i was thinking i could simplify by having the disk enclosure mount as a single drive and then I would just need to merge my existing software setup. Im getting pretty unanimous feedback that this is not a good idea.

    I’ll dive deeper into mdadm’s documentation and see if I can do some magic here. I realize it’s not the most elegant solution, but I’d really prefer keeping my existing setup and add to it.

    Thanks again for your input, I appreciate it!