How do I maintain more audit history?
There is no way to specify the time-span for which audit-files are kept. They are kept based on size and number of rollover files. The old ones will be deleted then. If rollover = 0 and you restart the audit every day, you would only ever have 1 file for example. If you want an "advanced archive mechnanism" you have to store the files elsewhere, i.e. in a special Datawarehouse. (recommended)