“Solar Winds” is software used by many organizations to monitor servers. We have thousands of servers at my organization, and Solar Winds is used to monitor and administer to a lot of functions such as:
Disk Space
Memory Usage
Processor Usage
Network status
It does this behind the scenes, and if there are issues, it has notification functionality to send emails to the people responsible for maintaining those servers.
It is pretty slick.
Now, also pretty compromised, apparently.
Similar to Nagios and other monitoring systems.