Increase OneDrive for Business Storage 1 TB to 5 TB

https://support.office.com/en-us/article/Set-your-OneDrive-for-Business-storage-quota-7448173d-a38c-48cf-acbb-09ac1b6237d4?ui=en-US&rs=en-US&ad=US

To increase OneDrive for Business storage for particular user 

Connect-SPOService -Url https://domain-admin.sharepoint.com -credential admin@domain.onmicrosoft.com

Set-SPOSite -Identity "https://domain-my.sharepoint.com/personal/user1_domain_onmicrosoft_com" -StorageQuota "5120000"

To increase OneDrive for Business storage for all users

References:

https://gallery.technet.microsoft.com/scriptcenter/How-to-update-the-quota-bb2684be

Also

https://gallery.technet.microsoft.com/scriptcenter/How-to-update-ODFB-Storage-7e816710