please teach me about how IIS log and webalizer/AWstats works.
I have complaints about big log files consuming account space and I'm not sure if customer can securely delete it without lose statistics on awstats, or how maintain clean and tight log folder.
If the customer has large amounts of traffic it will certainly take much space.
All but each days currently runnings log(i.e. don't delete today's log) can be safely downloaded and removed. Or just removed, but if they don't intend to keep them, just turn off the tranfer log option.