Avamar: Enable and Disable VMware VDDK Library Debug Verbosity

Summary: This guide shows how to click debug logging for the Virtual Disk Development Kit (VDDK) library on an Avamar proxy.

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Symptoms

This KB article guides on how to enable and disable VMware VDDK verbosity on Avamar proxies.

Cause

This should be done when trying to troubleshoot and issue where the VDDK library is the suspect at fault and must enable debug.

Example: hotadd is not being used, but standard logging does not show the reason.

Resolution

Perform the below steps to enable VMware VDDK library debug verbosity in Avamar proxy:

  1. Identify a proxy for troubleshooting. 
  2. On that proxy, run this command: 
    find /usr/local/avamarclient/ -name vddkconfig.ini -exec perl -pi -e 's/transport.LogLevel=2/transport.LogLevel=6/;s/nfc.LogLevel=2/nfc.LogLevel=4/' {} \;
  3. Create a test policy with the Virtual Machine (VM) to troubleshoot with and configure only the chosen proxy from Step 1 to protect this policy group
  4. Start the test policy backup.
  5. Collect the log from proxy from Step 4.
  6. Disable VDDK verbosity: 
    find /usr/local/avamarclient/ -name vddkconfig.ini -exec perl -pi -e 's/transport.LogLevel=6/transport.LogLevel=2/;s/nfc.LogLevel=4/nfc.LogLevel=2/' {} \;
  7. Delete or disable the test policy created in Step 3.

OR

To perform the same operation but on all proxy threads run this command.

For example: 
  1. To enable: 
    proxycp.jar --cmd "find /usr/local/avamarclient/ -name vddkconfig.ini -exec perl -pi -e 's/transport.LogLevel=2/transport.LogLevel=6/;s/nfc.LogLevel=2/nfc.LogLevel=4/' {} \;"
  2. To disable: 
    proxycp.jar --cmd  "find /usr/local/avamarclient/ -name vddkconfig.ini -exec perl -pi -e 's/transport.LogLevel=6/transport.LogLevel=2/;s/nfc.LogLevel=4/nfc.LogLevel=2/' {} \;"
 

Additional Information

WARNING: Do not leave VDDK verbosity enabled forever as it can increase in proxy log sizes and eventually cause the proxy to run out of disk space.

Affected Products

Avamar Client for VMware

Products

Avamar
Article Properties
Article Number: 000039449
Article Type: Solution
Last Modified: 10 تموز 2026
Version:  5
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