11.2. Analyzing the Environment

Red Hat recommends running the Log Collection Analysis tool prior to performing updates and for troubleshooting. The tool analyzes your environment for known issues that might prevent you from performing an update, and provides recommendations to resolve them.

The tool gathers detailed information about your system and presents it as an HTML file.


The Log Collection Analysis tool is available from Red Hat Virtualization 4.2.5.


  1. Install the Log Collection Analysis tool on the Manager:

    # yum install rhv-log-collector-analyzer
  2. Run the tool:

    # rhv-log-collector-analyzer --live

    A detailed report is displayed.

    By default, the report is saved to a file called analyzer_report.html.

    To save the file to a specific location, use the --html flag and specify the location:

    # rhv-log-collector-analyzer --live --html=/directory/filename.html
  3. Use the ELinks text mode web browser to read the analyzer reports. To install the ELinks browser:

    # yum install -y elinks
  4. Launch ELinks and open analyzer_report.html.

    # elinks /home/user1/analyzer_report.html

    To navigate the report, use the following commands in ELinks:

    • Insert to scroll up
    • Delete to scroll down
    • PageUp to page up
    • PageDown to page down
    • Left Bracket to scroll left
    • Right Bracket to scroll right

You can now update the Manager to the latest version of 4.2.