In the hosting world, disk storage is a critical component of web space. Disk space refers to the amount of space available to every client. For example, if you're storing four gigabytes of content, you'll have enough space to upload that much content to your site. In addition, disk space is also used by your web host to store your emails. However, disk space is limited.
Depending on your website type, disk space will vary. Large emails and large attachments will eat up your HDD space. Script-driven sites store user-generated content in a database, so disk space will be a concern when storing a large amount of content. To avoid these problems, make sure that you have enough disk space. A hosting company's disk space policy is fundamental.
When unsure how much disk space you'll need, check cPanel's statistics section. It's the fastest way to find out how much disk space you're using, but if you have access to the command line, you can use a command called "du" to see how much space you're using. This command will give you the total size of all files stored on the web server.
Many web hosting companies advertise unlimited disk space, but this is false. If they offer 500 customers a 1000 GB server, that doesn't equate to unlimited space or bandwidth. The truth is that your hosting disk space is only as ample as the hard disk on the server. So if you think your website needs only 100 MB, it's probably okay to go for a lower disk storage option. However, if you use many tools or plugins, ensure you have enough disk space.