SolarWinds Log & Event Manager (LEM) is the best solution, that has evolved over the years to become one of the most trusted and reliable solutions for log management, security, and compliance. SIEM systems provide a holistic view of an organization’s Information technology (IT) Security by collecting logs and other security-related documentation for analysis. LEM is deployed as a virtual appliance, and also supports Hyper-V that makes it easy to get up-and-run quickly.
Source: https://thehackernews.com/2014/03/learn-how-solarwinds-log-event-manager.html