Chapter 10. Red Hat Enterprise Virtualization Reports

Red Hat Enterprise Virtualization provides a suite of pre-configured reports and dashboards that enable you to monitor the system. The reports module is based on open source reporting tools JasperReports and JasperServer. This chapter describes how to access Red Hat Enterprise Virtualization reports, navigate to the pre-configured reports and dashboards, and create your own ad hoc reports.

10.1. Overview

This section covers JasperReports and JasperServer, the open source reporting tools that Red Hat Enterprise Virtualization uses.

10.1.1. JasperReports & JasperServer

JasperReports is an open source reporting tool, capable of being embedded in Java-based applications. It produces reports which can be rendered to screen, printed, or exported to a variety of formats including PDF, Excel, CSV, Word, RTF, Flash, ODT and ODS. JasperReports integrates with JasperServer, an open source reporting server for JasperReports. Using JasperServer, reports built in JasperReports can be accessed via a web interface.
JasperServer in Red Hat Enterprise Virtualization
Red Hat Enterprise Virtualization provides a customized implementation of JasperServer, which contains a range of pre-configured reports and dashboards, plus the ability to create ad hoc reports.

10.1.2. Online Help

JasperServer provides extensive online help. Use the online help to find information on common administration tasks and the JasperServer product in general. This section provides information on the reports available for Red Hat Enterprise Virtualization and the customizations that integrate JasperServer with Red Hat Enterprise Virtualization. To navigate to the online help facility, click on Help in the top left-hand corner of any screen, as shown in Figure 10.1, “Red Hat Enterprise Virtualization Reports online help”.
Red Hat Enterprise Virtualization Reports online help

Figure 10.1. Red Hat Enterprise Virtualization Reports online help

10.1.3. Red Hat Enterprise Virtualization History Database

Red Hat Enterprise Virtualization Reports uses data from the Red Hat Enterprise Virtualization History Database. Chapter 11, History Database Reports contains instructions on how to generate reports directly from the database. The Red Hat Enterprise Virtualization Technical Reference Guide provides details on all the configuration and history views available in the history database. See also Appendix D, Reports Schema.

Important:; Reports require sufficient data

To produce meaningful reports, sufficient data must exist in the history database. Most reports use values aggregated on a daily basis. Meaningful reports can only be produced if data for at least several days is available. In particular, because trend reports are designed to highlight long term trends in the system, a sufficient history is required to highlight meaningful trends.