Infrastructure Overhead
Infrastructure overhead encompasses the fixed and variable costs associated with maintaining the technical environment necessary for a node to function reliably. This includes the acquisition and maintenance of specialized hardware such as high-performance servers, redundant power supplies, and cooling systems.
For cloud-based validators, it involves monthly subscription fees for Virtual Private Servers that offer guaranteed uptime and low latency. The overhead also accounts for security measures like DDoS protection, secure key management hardware, and monitoring software that alerts operators to performance bottlenecks.
Managing this overhead effectively is crucial to ensure high availability and prevent slashing penalties, which occur when a node fails to validate blocks correctly. High infrastructure overhead can create barriers to entry, potentially leading to centralization among well-funded operators.