Let's start by learning how to manage
storage in SharePoint Online. The storage
every organization has in their tenant for
SharePoint Online really depends on the
number of licensed users inside that
tenant. The formula today is 1 TB base for
every tenant plus 10 GB for each user that
is licensed. So if we take an example, a
company with 500 users, you would have 1
TB plus 500 times 10 GB, which would give
you roughly 6 TB of SharePoint Online
storage. You will often see the storage in
SharePoint Online documents referred to as
pooled storage, so it just refers to all
of the total storage for all of your
users. To manage the storage, you can
either put it in Automatic or Manual mode,
where Automatic you basically allow each
site collection to take the storage it
needs, and with Manual, you can set a
limit per site. In order to do that
change, you can go to the admin center, in
Settings, and then Site storage limits,
and then you can set it really between
Automatic and Manual. Those are the only
options that you have in there. If you set
it to Manual, a new option will appear in
the admin center in the site management
page where you can change the storage
limit for that specific site, and you can
also choose to email site owners when a
certain percentage of the storage is used.
You can also modify the site storage limit
with PowerShell by using the Set-SPOSite
PowerShell cmdlet and then using the
StorageQuota and StorageQuotaWarningLevel
parameters. The numbers provided are in
megabytes, so I'm currently setting the maximum to 50 GB and the warning at 48 GB.