Hi Charles,
What is happening is that the "Database" is actually on that USB. So when you pull the USB then plug it back in there is an initialization that takes place and the "old" database and the cache are flushed so that we can start the new cache.
If it is the same USB and you are just trying to add new files you can do this over FTP. just open an FTP client to the switcher
ftp://ipaddress of the switcher. User the username user and the password password. Then you can select the USB folder and it is now mounted as a network drive and you will be able to drag and drop files onto it without having to remove the drive. Also this is gigabit ethernet connection so it is very Fast.
Les
#Carbonite