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Node Requirements
The Hedera mainnet is currently comprised of permissioned consensus nodes operated by the Hedera Governing Council
The following is provided to help Hedera Governing Council members deploy their permissioned mainnet consensus node. Please note, this information is not intended to apply to Hedera's transition to a permissionless network.

Minimum Node Requirements

Currently, the Hedera mainnet will perform at a rate determined by the lowest-performing node. To ensure a common level of performance minimum hardware, connectivity and hosting requirements have been defined for the initial permissioned, Governing Council nodes.
To ensure accurate conformity with the minimum requirements, please provide node hardware, connectivity, and hosting details to Hedera prior to purchase ([email protected]).
Chassis (hardware nodes only)
    Dual Power - 1600W minimum, 2000W recommended
Network Connectivity: Single 1-Gigabit / 10-Gigabit Ethernet (physical connectivity subject to network infrastructure)
48-core or better CPU
256 GB PC4-21300 2666MHz DDR4 ECC Registered DIMM
2 x 240GB SSD with RAID 1 for OS Storage
5TB SSD NVMe usable storage
    Single Drive recommended
    Endurance / Mixed Use (Not Read Intensive)
Storage performance specifications (within 10% of performance parameters below)
    Sequential read: 6200 MB/s
    Random read: 1.08M IOPS
    Sequential write: 3000 MB/s
    Random write: 170K IOPS
Considerations for future expansion (hardware based deployments):
Reference Configurations available in Appendices B, C, D

Proxy

Access to the node via public APIs must be mediated by an in-line proxy. Below are the specifications for establishing this proxy.
    2-CPU
    2GB RAM
    100GB storage
    200Mb/S internet network connectivity with public static IP address
    Docker 18 or higher (Hedera to provide Docker image with HAProxy)

Network Connectivity

Node Connectivity
    1Gbps internet connectivity – sustained/unmetered
      Deployed with firewalled access to other mainnet consensus nodes
    Node deployed in dedicated (isolated) DMZ network
      Static IP (FQDN is not supported)
      TCP Port 50111 open to 0.0.0.0/0
      TCP Port 50211 open to 0.0.0.0/0
      TCP Port 50212 open to 0.0.0.0/0
      TCP Port 80 open egress to 0.0.0.0/0 (for Ubuntu OS package repository connectivity)
      TCP Port 443 open egress to 0.0.0.0/0
Proxy Connectivity
    Static IP address (FQDN not supported)
    200Mb/s internet connectivity
    TCP Port 50211 open to 0.0.0.0/0
    TCP Port 50212 open to 0.0.0.0/0

Hosting

    Industry standard hosting requirements for security and availability
      Tier 1 Data Center Hosting facility
      SSAE 16 /18, SOC 2 Type 2 compliant
    Hedera will seek to avoid duplicating of hosting providers across Council members

Software & Installation

    Any 64 bit Long Term Support (LTS) Linux distribution
      Ubuntu
      Red Hat Enterprise
      CentOS
      BSD not supported

Network Topology /(Typical Corporate Datacenter Configuration/)

Deployment Steps

The following steps outline the process for Council Members to add their consensus node to the mainnet.
    1.
    Initial contact with Council Member and node hosting entity
      1.
      Identify key individuals and project managers
      2.
      Establish regular deployment team meeting cadence
    2.
    Conveyance of technical requirements and discussion of deployment options
    3.
    Node platform acquisition
      1.
      Hardware or virtual instance
      2.
      Network connectivity
      3.
      Hosting facility
    4.
    Configuration of the operating system on platform
      1.
      Provisioning of accounts as specified
      2.
      Provisioning of network access (firewall rules/access control lists)
    5.
    Conveyance of credentials to Hedera
      1.
      Includes any special instructions for permissioned access such as VPNs
      2.
      Discussion of support and escalation paths between organizations
    6.
    Hedera undertakes configuration review
      1.
      Platform
      2.
      Connectivity
    7.
    Deployment of Hedera consensus node software and required supporting libraries
    8.
    Add connection configuration for a Hedera performance testnet
      1.
      Hedera executes functional, stability and performance tests for all network services
    9.
    Review of test results and determination of preparedness for mainnet connectivity
      1.
      Review key management documentation as it relates to Council Member's accounts including: fee account, proxy staking account, et al.
      2.
      Update private keys using provided tools
    10.
    Schedule mainnet connection
    11.
    Mainnet live
Last modified 1mo ago