You can enable WebHost Manager to set disk space quotas for the accounts on your server. Quotas are essential for the cPanel and WHM to calculate the amount of disk space used by the accounts on the server. You should make sure that your kernel supports file system quotas before enabling quotas on your system.
WARNING: If you have compiled a custom kernel on your machine that does not have quota support, enabling quotas may result in an unbootable system.
1 To access the Server Configuration Menu, click on Server Configuration, on the main screen of your WebHost Manager interface.
2 Click on Initial Quota Setup.
3 Read the warning information and then click on Ok.