How to locate and collect VSS/VIX log files from Guest OS

KB ID: 1789
Product: Veeam Backup & Replication | 9.5 | 10 | 11
Published: 2013-07-08
Last Modified: 2022-05-06
Languages: IT | FR
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Purpose

This article documents how to locate and gather the VSS, VIX, and indexing log files for troubleshooting investigation.

Cause

While investigating an issue related to Application-Aware Processing or VM Guest OS File Indexing, additional logs must be gathered manually from the Guest OS of the VM that is failing to backup.

These logs are NOT automatically captured by the Support Wizard, and they must be manually collected.

Solution

Note: If Application-Aware Image Processing was disabled during internal troubleshooting please enable Application-Aware Image Processing and run the job again to update the log files within the Guest OS.

 

Collecting logs from within Guest OS

The following actions are to be performed within the Guest OS of the VM that is being investigated. Please note that no Veeam Backup and Replication task should be running against the guest in question during this collection process, as that will interfere with the accuracy of the information.

 

  1. Navigate to the following directory %programdata%\Veeam\Backup
Guest Logs
  1. Collect any files matching the following Syntax:
    • VeeamGuestHelper_ddmmyyyy
    • VeeamGuestIndexer_ddmmyyyy
    • VeeamVixProxy_ddmmyy
  2. Open an elevated command prompt and run the following commands:
vssadmin list writers > C:\temp\vsswriters.txt
vssadmin list providers > C:\temp\vssproviders.txt
vssadmin list shadows > C:\temp\vssshadows.txt
vssadmin list shadowstorage > C:\temp\vssshadowstorage.txt
  1. Hyper-V Cases: Export Windows Event Logs from Guest as shown in KB1873.
  2. Bundle the logs collected in steps 2-4 into a compressed file (zip, 7z, or rar), and attach them to your case.
For information about attaching files to a support case, please review: https://www.veeam.com/kb4162
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