Backed up Apache Logs
Clicking the "Backed up Apache Logs" link will bring you to a File Manager screen containing a list of .tar.gz files named by domain/subdomain and month. For example:
Here we see 5 backups for the month of April: the subdomain (lp, and the backup for the main domain (Sept-2016.tar.gz). And 2 for August. Backed up Apache logs contain both usage and error data.
Click on the file name of the backup to download it
Viewing Account Information
The main Statistics menu provides a great deal of information. As mentioned above, the first two rows of the table (Bandwidth / Disk Space) provide total usage. That is, DirectAdmin uses these numbers for quota purposes (and not the numbers in the Domain Statistics table -- see first section entitled "Checking Disk Space and Bandwidth").