Hello,
First you gonna need a query that get that data, and If you whant a Report and not a Dashboard, you must get that data with only one query.
After that you have to answers what data you whant your user to input
And than use JasperStudio to create the report.
And It helps If your server are grouped
Take a look on this tutorial maibe It helps
Playing with JasperReports - Part 2 Simple Report ( Service Summary by Service)
The major diference is the query,