With LogVerbose you can verify that the ACL user cache settings are being used. When LogVerbose is running, you should expect to see these messages in your errors log when the server starts:
User authentication cache entries expire in ### seconds. User authentication cache holds ### users. Up to ### groups are cached for each cached user.
You can turn LogVerbose on by:
Editing the LogVerbose parameter in magnus.conf
Setting or changing the LogVerbose value to "on" in the Magnus Editor of the Server Manager
Do not turn on LogVerbose on a production server. Doing so degrades performance and greatly increases the size of your error logs.