Hi all, I’m playing around with LVMs to expand data storage and I’m looking at what would be required to transfer those drives to another device, all the steps I can find require exporting the volume group and then importing on the other device. But what would be the case if your boot drive were to fail, and you needed to move the drives without being able to export the volume group. Can you just do an import with a new device, or are there other steps required to do so?
Secondly, is there a benefit to creating an LVM volume with a btrfs filesystem vs just letting btrfs handle it?
Like, btrfs on top of LVM versus btrfs? Well, the latter gives you access to LVM features. If you want to use lvmcache or something, you’d want it on LVM.
That’s kind of what I figured, my biggest concern at this point would be how difficult it is to move the lvm volume to a different device. It seems pretty straightforward if you have a working setup, but from what I’m seeing in my research is silence if your device (server, etc.) dies and you need to move those volumes to another. I’m finding guides on either recovering from corruption or lost metadata, or transferring from one working device to another. Nothing I can find about importing a fully functional lvm to a new device if it hasn’t been exported.
I’ll be able to do that later today, so I guess I’ll see what happens if I do. Better to try it out now when it isn’t critical.