GroundWork Monitor Core is a platform for monitoring networks, applications and cloud computing usage. The open source version includes a license to monitor up to 50 devices and community-based support, and there is also a business edition of the software.
In terms of its network managing capabilities, GroundWork offers auto-discovery and maintenance of network and devices, topology, alarm control, data collection via API, SNMP, IPMI and support for OpenDaylight SDNs.
GroundWork also offers storage management, supporting a large range of enterprise vendors such as NetApp and EMC along with data collection from disk, block or object storage and storage slowdowns and outages visuals.
Due to GroundWork's one-stop-shop approach to network management, this sort of suite might suit larger businesses and enterprises looking for an established brand rather than a developer-focused tool like Big Brother or Big Sister.