After upgrading Toolset, no data should be lost, but having a back up is always wise.
Try to visit the following kb and see if it will help:
SolarWinds Knowledge Base :: Moving or backing up SolarWinds Toolset
After upgrading Toolset, no data should be lost, but having a back up is always wise.
Try to visit the following kb and see if it will help:
SolarWinds Knowledge Base :: Moving or backing up SolarWinds Toolset