How to improve network performance with Protection Engine implemented in a NetApp environment


Article ID: 177977


Updated On:


Protection Engine for NAS


Symantec Protection Engine (SPE) has been implemented with in a NetApp, and you've noticed some performance degradation when scanning large non-container files. You're looking for steps to mitigate or resolve this issue.


By default, SPE copies all files from the filer to the scanner locally before scanning the file. This can have performance implications if network bandwidth becomes saturated.


NetApp filer in 7 mode or C mode.


Please follow the steps below to change the FilerPerformanceThreshold parameter in SPE:

  1. Stop the Symantec Protection Engine service
  2. Open a command prompt as administrator and change directory to the Scan Engine program folder
  3. Enter the following command:
    .\xmlmodifier.exe -s /configuration/ProtocolSettings/RPC/FilerPerformanceThreshold/@value 100 configuration.xml
  4. Start the Symantec Protection Engine service


  • This parameter is applicable in RPC protocol only.
  • If file size is greater than 100 bytes, then the file is scanned in place by SPE. If the file size is less than the configured threshold the file is copied to the scanner prior to scanning.
  • If this parameter is set to 0, then all files are locally copied and then scanned.