Kurt Shintaku's Blog

Most people are aware that SharePoint Online storage is not “unlimited” in the same way that OneDrive for Business is. 

SharePoint Online storage is a higher “quality” of storage in that it’s performance, availability & connectivity is higher than OneDrive for Business.  It’s a superior storage medium in every way for multi-user access and consequently a most costly service.

Specifically, customers of Office 365 E3/G3/E5/G5 get:

• 1TB baseline storage
• 10GB of additional storage for each licensed user

…that allows a 10,000 User Subscription License owner to consume 101TB in its current SharePoint Online service at no additional cost.

(Additional storage may be purchased as needed under a agreement subscription SKU called “Office 365 Extra File Storage” for a rough retail cost of $0.20/GB/month or $200/TB/mo)