2018-05-21

This article will break down the storage allocation for the various Office 365 Enterprise workloads like SharePoint Online, OneDrive for Business, Microsoft Teams, Exchange Online and  Office 365 Groups.

SharePoint Online (SPO)

SPO storage is based on the number of licensed users you have in Office 365. The storage per user used to be .05 GB per user, now this has increased to 10 GB per user adding additional storage for your tenant. The site storage is automatically allocated from a pooled storage model so the admins do not have to divvy up storage for SPO.

SharePoint Site collocation can store up to 25 TBs. You can purchase additional storage if needed and your Office 365 plan is eligible. You must be a Global Admin or Billing Admin on the tenant to add more storage. $0.20 gigabyte/month for additional storage. SharePoint Online Limits

OneDrive for Business (ODB)

OneDrive has its own dedicated storage that is separate from SPO that consist of 1TB per user which can be increased to 5TB if needed via the OneDrive Admin Center. OneDrive for Business Limits

Microsoft Teams

Files stored in a Teams conversation are stored in the associated SharePoint site. Files added to a Chat in Teams are stored in the users’ OneDrive. So Teams uses a combination of OneDrive and the SharePoint site for files uploaded. Please see the SPO and ODB storage limits.

Exchange Online (EXO)

The mail storage will differ from your licenses you have assigned to your tenancy and the type of mailbox in use. Example: Users mailbox maximum size is 50GB and you can set the limits from the Exchange Admin Center or PowerShell. Configure Quotas for Mailboxes

Exchange Online Limits

Office 365 Groups

The Office 365 Group storage allocation consist of a combination of Mailbox storage and SharePoint storage. Since each Office 365 group gets a shared mailbox and a SharePoint Site, please refer to the Exchange Online Limits and SharePoint Online Limits for more information or the Office 365 Group support site.

If you need to request additional storage, please see the Adding Additional Storage article.

About the author 

Johnny Lopez

I have been working in SharePoint 2007, 2010, 2013 and 2016 as a SharePoint Administrator/Architect role for 8 years. I have been heavily working with Microsoft Office 365 across all of the workloads from SharePoint, OneDrive, Identity, Exchange, AAD, Teams, O365 Groups and many more. I have experience working in Service Oriented organization and I am ITIL v3 certified. I have 7+ years in Management and/or a leadership role. I served 10 years total in the U.S. Navy.