When you click on the Configure Quotas and Locks Link, you will land on Site Collection Quotas and Locks page. This page will let you change the quota template or individual quota values for a Web site collection, or clear a lock set by an application or caused by exceeding a quota or locked manually for some reason.


Direct link to Site Collection Quotas and Locks page is (/_admin/sitequota.aspx)

On this page, we can control the Site collection lock status as well as the site collection storage.

We can control the site collection storage, resources usage for the sandbox solutions and more over we can lock a site collection. Initially, when a new site collection provisioned, we assign some storage quota to it.

There are a couple of reasons why we reach this page on central admin.

We can use the lock status option to control the status of site collection. There are 4 lock types available in SharePoint 2016.

  1. No Lock: this mean site is not locked at all and is accessible for all operations (read / write).
  2. Adding content prevented
    In this lock type, user will not able to add the content to the site collection but still they can update or delete the items.

  3. Read-only (blocks additions, updates, and deletions)
    If site collection locked as read only then user cannot perform any action expect the reading the content. User cannot add, update, delete or move them. There are two types of read lock,

    1. site collection administrator controlled
    2. farm administrator controlled

  4. No Access
    Once a site collection is locked as No access then no one can access it, user cannot see anything rather they will see an error in the browser that cannot show the web site.

To lock a site collection

In this section, we will lock the site with no access.

To Change a quota of site collection

Please follow the below steps to change quota of the teamwaqas site collection.

And 4500 MB in the warning box.

In this article, we follow the steps to lock the site with no access and also increase the quota of site collection.