Cardano's dPoS system relies on stake pool operators (SPOs) running validator nodes. Hardware requirements differ based on whether you're operating on the testnet (for testing purposes) or the mainnet (for real staking rewards).
Recommended Requirements (Mainnet):
For reliable operation and attracting delegators on the Mainnet, a well-equipped server is crucial:
- CPU: Powerful multi-core CPU (minimum 4 cores) from a recent generation. 3Ghz+ per core will be an ideal CPU.
- RAM: At least 32 GB of RAM.
- Storage: Solid-state drive (SSD) with 500 GB or more of storage. Bacloud recommends using NVMe drives.
- Network: Dedicated high-bandwidth internet connection. 100Mbps is fully enough.
Minimum Requirements (Testnet):
The Testnet allows you to experiment with minimal hardware. However, for a smoother experience, consider exceeding these minimums:
- CPU: Dual-core CPU
- RAM: 4 GB of RAM
- Storage: 30 GB of storage space, preferably SSD
- Network: Basic internet connection
Additional Considerations:
- Redundancy: Implement redundant hardware components (CPU, RAM, storage) to minimize downtime.
- Security: Prioritize robust security measures like firewalls and intrusion detection systems.
- Scalability: Choose hardware that can be easily scaled up as your stake pool grows.
Operating System (OS):
Cardano recommends running the validator node software on a Linux operating system with a long-term support (LTS) version like Ubuntu LTS or CentOS LTS. These LTS versions provide stability and receive security updates for an extended period.