I am planning on creating a new LXD host (living on a Hetzer CX21 Cloud Server with 4G RAM and 40G HD) and am wondering how to do this most efficiently. Some question I’d like to be clearer about
Would it be beneficial have a separate partition (on the same HD) for the storage pool rather then creating an image file?
if so, I assume the filesystem of choice on that partition would btrfs, right (probably the lxd init command formats the device with the fs you choose)?
is ubuntu 20.04 already recommended for an LXD host (apt package rather then the snap) or would you still go with 18.04 on a new host?
Yes, dedicated partitions provide significantly better performance
Leave the partition unformatted and LXD will format it for you when you create the storage pool. ZFS tends to be the best experience at this point, but btrfs is a close second (it’s mostly quotas and VMs being a bit less ideal on it).
If you need a deb package, then 18.04 is your only option (with LXD 3.0.x). Any release after that is snap only.
Note that you can either use part of those 40GB for LXD, or use block storage.
Depending on how Hetzner implements those 40GB (are they local to the server?), you may have to select to either repartition the 40GB or go for block storage instead. You can benchmark the two just to make sure whether one is significantly better than the other.
thx @simos. as always your help is highly appreciated
the recovery interface looks slightly different nowadays then described in your blogpost, but basically you can find your way through the repartitioning with the method described. thanks that was really helpful.