To enable verbose logging on EVS perform the following:

1. On the EV server that hosts the archive index volume, navigate to
   • \Program Files (x86)\Enterprise Vault\EVSearch\EVSearchClient
2. Take a backup of the Web.config (i.e. Copy the Web.config and re-name the copy to Web.config.ddmmyy where ddmmyy is the full date)
3. Open the original Web.config
   • Find the line that states (around line 73):
   • A value of 3 is for informational logging, whereas a value of 4 is for verbose logging; the line in the Web.config should look like the following:
4. The value detailed in the line below (around line 77) details the location of where the log files are saved
5. Save the web.config
6. Wait for the issue to occur at least one more time
7. Once the required information has been gathered, return the LogLevel in the Web.config to the original level: