We running parity (now called OpenEthereum) with this command: `./openethereum — tracing on — pruning archive — db-path=/mnt/md0/eth-mainchain/ — jsonrpc-hosts http://localhost:36963 — min-peers=50`. However, since we wrote this article, we’ve switched to TurboGeth (now called Erigon). You should check it out. Six times faster sync for an archive node. Eight times smaller requirement for disc space. Just as fast access to trace data. Erigon is clearly better.