Master Oracle DB Monitoring with Nagios XI
Oracle Database is a powerful relational database system designed for enterprise applications, but if disrupted, it can lead to serious consequences for your data and business operations. With the Premium version of Nagios XI, you gain access to multiple wizards that simplify gathering key information from the database, enabling easy and effective monitoring without complex setup.
Prerequisite
To use all these wizards, you’ll need to install the Oracle plugins. Please refer to this document for instructions on installing the required plugins.
Why Use the Oracle DB Wizards
Nagios XI includes three specialized wizards for monitoring Oracle Database: the Oracle Query Wizard, Oracle Serverspace Wizard, and Oracle Tablespace Wizard. Each wizard is designed to gather specific, detailed information about your database, ensuring accurate and up-to-date monitoring with just a few clicks. The wizards can be found by navigating to Configure > Configuration Wizards, then searching for ‘oracle’.
Metrics You Can Monitor
The wizards allow you to monitor many valuable aspects, such as:
Query Wizard
- Query: Able to monitor specific queries and set thresholds for them

For more details about the Query wizard read here.
Tablespace Wizard
- Usage: Check space being sued by tablespace
- Free Space: The amount of unused space
- Remaining time until full: Estimates the time before tablespace is full
- I/O Balance: Helps identify uneven disk distribution

For more details about the Tablespace wizard read here.
Serverspace Wizard
- Connection Time: How long it takes to establish connection
- Connected Users: How many active user sessions
- SGA Data Buffer Hit Ratio: Reflects efficient memory usage
- PGA in memory sort ratio: How many sorts are handled in memory, higher ratio means faster performance
- Redo I/O traffic: Volume of redo logs being written
- And more…

For more details about the Serverspace wizard read here.
Conclusion
Proactive monitoring is key to maintaining a stable, high-performing Oracle Database environment. The Oracle Database wizards in the Premium edition of Nagios XI simplify this process, helping you track key metrics and catch issues early. With less time spent on setup and troubleshooting, you can keep your databases running smoothly and focus on supporting your business.



