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If I want to support ethereum with a full node. How much space do I need to host a full node as of today 2020 September?

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Currently 165 GB, taken from https://blockchair.com/ethereum/charts/blockchain-size:

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For an archive node, you need over 5TB (taken from https://etherscan.io/chartsync/chainarchive):

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  • That is not the full chain download size. Last i check it was much more than that a few years ago. – Patoshi パトシ Sep 22 at 3:33
  • @Patoshiパトシ Then you mean an archive node. I updated the answer accordingly. – Markus - soliditydeveloper.com Sep 22 at 6:54
  • don't you need an archival node if one wants to see historic transaction data? Or does a full node offer this as well? – Patoshi パトシ Sep 23 at 17:45
  • @Patoshiパトシ Yeah, but an archive node is not required for securing the Ethereum network. A regular full node still processes and checks all transactions. It just doesn't keep track of the state for each past block, only the last 256 blocks. – Markus - soliditydeveloper.com Sep 23 at 21:58

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