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

Products

• Protection Engine for NAS

Issue/Introduction

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.

Cause

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.

Environment

NetApp filer in 7 mode or C mode.

Resolution

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

Notes:

• 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.