It can be used for monitoring entire IT infrastructure, starting with SNMP-capable hardware. NetXMS is an enterprise grade multi-platform open source network management and monitoring system. It provides comprehensive event management, performance monitoring, alerting, reporting and graphing for all layers of IT infrastructure - from network devices to business software layer.

The system has three-tier architecture: the information is collected by monitoring agents (either our own high-performance agents or SNMP agents) and delivered to monitoring server for processing and storing. Network administrator can access collected data using rich client software or web interface.

Having been designed with flexibility and scalability in mind, NetXMS features a wide range of supported platforms, operating systems and database engines, thus ensuring seamless integration with any infrastructure.

NetXMS Features:
1. Unified platform for management and monitoring of the entire IT infrastructure
2. Designed for maximum performance and scalability
3. Distributed network monitoring
4. Automated network discovery
5. Flexible and easy-to-use event processing
6. Business impact analysis tools
7. Quick deployment with minimal configuration efforts
8. Easy and simple integration with related products
9. Native support for many popular platforms and operating systems

The following database engines can be used as a backend:
* Microsoft SQL
* Oracle
* MySQL
* PostgreSQL
* SQLite

Database size and load is very hard to predict, because it is dependent on a number of monitored nodes and collected parameters. If you plan to install database engine on the same machine as NetXMS server, increase your hardware requirements accordingly.

The license of this software is Free, you can free download and free use this database management software.