Design decisions for a permissioned Besu network before go-live: genesis settings, validator count, node roles, peer discovery, sizing, gas settings and how several organizations share one network.
What goes into a private Besu genesis file and why it is hard to change later: consensus section, initial validators in extraData, gas limit, preallocated accounts and contracts, curve choice and milestone blocks.
Working out the validator count for a consortium network: the four-validator minimum, how many failures each size tolerates, the block time cost of more validators and what happens below quorum.
Choosing the consensus protocol for a new permissioned Besu network: why QBFT is recommended, what IBFT 2.0 networks can migrate to, validator management options only QBFT offers and Clique's removal.
Separating validators, RPC nodes, bootnodes and read-only nodes in a private Besu topology: what each role needs in storage and networking, which nodes face applications and which to keep private.
Choosing how private Besu nodes find each other: bootnodes, static-nodes.json or both, keeping enodes stable through failures, and adding bootnodes without restarting the network.
Sizing CPU, memory and disk for private Besu validators and RPC nodes: what drives requirements, JVM heap, disk type, and measuring real needs with Prometheus before buying hardware.
Bringing a new node into an existing private Besu network: full sync from genesis versus snap sync from Bonsai peers, what peers must enable, and the deprecated checkpoint mode.
Choosing the block gasLimit and the QBFT or IBFT 2.0 pertxgaslimit for a private network, the EIP-7825 default cap, and changing either later with a transition.
What changes when several organizations each run Besu nodes: shared genesis and upgrade decisions, validator and bootnode ownership, permissioning that each node enforces locally, and a network of trust.
A pre-go-live checklist for a permissioned Besu network: validator and bootnode counts, configuration under source control, rehearsed upgrades in a dev cluster, monitoring from day one, secured RPC and downgrade protection.
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