Nagios XI vs SolarWinds Observability

Nagios XI has a free edition, capped at 7 nodes or 100 services, whichever comes first. Paid licenses are one-time purchases: Standard starts at $2,595 for 100 nodes, while Enterprise starts at $4,690 for 100 nodes. Both include the first year of Maintenance & Support; renewal prices and user-seat limits are not published. The 2,000+ node tiers require contacting sales.

SolarWinds Observability Self-Hosted starts at $8 per node per month. The pricing page lists annual pricing for multi-year contracts but does not publish a separate monthly rate. SaaS pricing is not published, and volume discounts require a quote. Both products offer a 30-day trial. Compare the total node count and renewal costs before choosing: Nagios is a large upfront payment, while SolarWinds’ listed price is per node.

Nagios XI covers infrastructure monitoring through active polling: it checks device health, service availability, and performance across servers, networks, databases, applications, and cloud platforms. Its free edition and paid licenses have different node and service limits, so check whether your environment fits the relevant tier. Enterprise dashboards and configuration tools are aimed at teams moving from Nagios Core.

SolarWinds Observability covers networks, infrastructure, databases, applications, digital experience, logs, and security across on-premises, cloud, and hybrid environments. Its listed capabilities include dynamic mapping of application and infrastructure dependencies, event correlation, anomaly detection, and root-cause investigation. It offers SaaS, self-hosted, and hybrid deployment options. The Self-Hosted plan lists metrics, traces, logs, and user experience, plus support for custom apps, microservices, Kubernetes, containers, APIs, and third-party integrations.

The practical split is breadth of observability and deployment choice versus a polling-based monitoring setup with explicit node-tier licenses. The published pricing details do not establish feature parity between Nagios editions and SolarWinds plans.

Nagios XI adds enterprise dashboards and configuration tools for teams coming from Nagios Core, but the review flags migration effort as something to assess. Its node-tier licensing also means you should map your monitored environment to a tier before buying; the free edition’s 7-node or 100-service cap can be restrictive.

SolarWinds offers self-hosted, SaaS, or hybrid deployment, so teams can choose an operating model. Dynamic mapping, event correlation, and root-cause tools are intended to help investigate relationships and issues across monitored environments. The published information does not specify setup time, required skills, or onboarding support, so we would not assume it is easier to run. Ask for a renewal quote and confirm what is included before committing.