Identify the cause of high disk usage

To find the cause of high disk usage on your server, ssh as root and use the du utility.

Enhance uses overlayfs for containerisation and therefore a du in /var/container_tmp or /var/local/enhance/containers will exaggerate disk usage. To get the true usage, add --exclude=merged to your du command. It's very important not to delete any files from /var/local/enhance/containers as this might break your system.

If you are using Monarx (a 3rd party antivirus) on your system, make sure your agent configuration excludes /var/local/enhance/containers, /var/container_tmp and any backup directories from its scans. Monarx sets extended file attributes which can cause duplication in overlayfs and cause your disk usage to balloon.

Common places to look for high disk usage are /var/log /usr/local/lsws/logs and /usr/local/lsws/cachedata