Tech Tips: How to Mount and Configure Flexible Storage Module on NSa Series
The NSa firewalls can store Syslog and trace log entries to either the Built-In Storage or Flexible Storage modules.
The KB link below helps in understanding how to Mount SonicWall External Storage Modules:
By default, these logs are sent to the Built-In Storage Module. To let SonicWall save the logs to the Flexible storage follow the KB link below:
This information stored in Fliexible storage would help in troubleshooting the scenarios where the logs are missing due to buffer size.
Hope this information is helpfull.
Technical Support Advisor, Premier Services