Chapter 4: Troubleshooting the NFM-P platform
Overview
Purpose
This chapter provides information about troubleshooting the NFM-P platform, database, server, or clients.
Contents
Problem: Poor performance on a RHEL station
Problem: Device discovery fails because of exceeded ARP cache
Troubleshooting using the LogViewer
LogViewer GUI and Quick Links panel
To display logs using the LogViewer GUI
To configure the LogViewer using the GUI
To show or hide buttons from the LogViewer main tool bar
To set highlight colors and fonts for LogViewer components and levels
To automatically show or hide log messages
To manage filters using the GUI Filter Manager
To specify a plug-in using the LogViewer GUI
To display logs using the LogViewer CLI
To configure the LogViewer CLI
To specify plug-ins using the CLI
Troubleshooting the NFM-P database
Database troubleshooting overview
Problem: NFM-P database corruption or failure
Problem: The database is running out of disk space
Problem: Frequent database backups create performance issues
Problem: An NFM-P database restore fails and generates a No backup sets error
Problem: NFM-P database redundancy failure
Problem: Primary or standby NFM-P database is down
Problem: Need to verify that Oracle database and listener services are started
Problem: Need to determine status or version of NFM-P database or Oracle proxy
Troubleshooting NFM-P server issues
NFM-P server troubleshooting overview
Problem: Cannot start an NFM-P server, or unsure of NFM-P server status
Problem: NFM-P server and database not communicating
Problem: An NFM-P server starts up, and then quickly shuts down
Problem: Client not receiving server heartbeat messages
Problem: Main server unreachable from RHEL client station
Problem: Excessive NFM-P server-to-client response time
Problem: Unable to receive alarms on the NFM-P, or alarm performance is degraded
Problem: Cannot discover more than one device, or device resynchronization fails
Problem: Slow or failed resynchronization with network devices
Problem: Statistics are rolling over too quickly
Problem: Cannot start NFM-P client, or error message during client startup
Problem: NFM-P client unable to communicate with NFM-P server
Problem: Delayed server response to client activity
Problem: Cannot place newly discovered device in managed state
Problem: User performs action, such as saving a configuration, but cannot see any results
Problem: Device configuration backup not occurring
Problem: NFM-P client GUI shuts down regularly
Problem: Configuration change not displayed on NFM-P client GUI
Problem: List or search function takes too long to complete
Problem: Cannot select some menu options or save some configurations