Note: Having enough free disk space is extremely important, If your account goes over disk quota many services will not work correctly or stop working, these will include:
Mail system, You will not be able to send and receive any email
CGI and PHP scripts that use databases or want to modify or create some sort of files.
Databases could corrupt
Therefore we recommend you ensure you keep enough free disk space at all times.
After logging into your Control Panel, click Virtual Server Details on the left, then you will be presented with infomation on the following on the right side of the page :
Virtual server details
Quotas and limits