|Since you are an admin of a Salesforce org on the EU11 instance, we want to inform you that we are performing a site switch on the instance on June 9, 2018.
The maintenance is scheduled between:
22:00 – 23:00 UTC on June 9, 2018
This site switch will help ensure that you continue to receive the same levels of performance you have come to expect from Salesforce, and this is especially true in advance of your upcoming instance refresh. Performing this site switch is important to the health of the EU11 instance as it allows us to switch to the ready instance that has received additional improvements. The additional work we are performing on EU11 will also affect your instance refresh date. More details will be provided in another email communication we will be sending in the next week.
After this site switch, your active instance location will be in our Paris, France data center and your ready instance location will be in our Frankfurt, Germany data center. Your instance name will not change.
During the maintenance, your instance will be available in read-only mode, meaning users can’t add, edit, or delete data on their org(s) during this window. For more information on what read-only access allows, see our Read-Only Mode Overview article.