Knowledge cards: Nodes and validators
After “The Merge,” running an Ethereum node requires running two software clients: an execution layer client and a consensus layer client.
An archive node stores the complete state data for every historical block in addition to what a full node stores, and requires much more disk space than a full node.
Before running your own validator node, consider the hardware, bandwidth, and time needed for maintenance. Frequent downtime can cost you rewards.
On Ethereum, becoming a validator requires staking at least 32 units of $ETH .