The logs files are also archived to the archive drive/location.
All the logs is placed in the logs folder. There will be a file for each day - with '.amt' file extension(this is the archived log files).
Note: for example the file with the date 20100530 will have the logs for 30 days back, therefore logs for 20100430. There could be more than one file for the same date - all will have '.amt' file extension.
The view these logs, you need to load the file in AMETHYST webadmin using the 'Update via Web' function - see forum post: How do I upgrade with AMETHYST 1.5 /1.6?
Once you have loaded the archived logs, go to 'View Logs' from the Home page and navigate to the date you require to check. Open the specific logs for that day.
NOTE: At 21h00 these logs will be removed from the AMETHYST server again. If you require to check anything the next day, you will have to load the archived logs again.