I’m going to have to put in a plug for ZFS here. It’s stable on Linux, it checksums your data to avoid silent data corruption, it rebuilds much faster than traditional RAID (since it knows which blocks are in use), it’s easy to expand volumes (though there is a right and a wrong way to do it), and it works on pretty much every major OS except Windows. Running Neth from a ZFS root is doable, but takes a bit of hacking (see Neth on ZFS root filesystem?). But using ZFS for a storage volume should be very straightforward.
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