The Forums archiving feature allows you to move message threads (including messages) to archive tables in the Forums database. You can easily restore threads and messages from the archive tables whenever you want. Archived Forums messages are stored in the same database as active messages, they are simply moved into separate tables.
Archiving features include:
In addition, when you use the Forums search facility, all messages, including archived messages are searched.
When you archive messages, you specify the age of the threads you want to archive. So before you start, you need to determine how old your current threads are. In the main conference page or thread frame, depending on whether you are viewing conference in frames or not, each thread creation date is listed. If the creation date is not displayed, click the Options button and enable the Display Thread Dates option.