The issue of data sovereignty arises a lot with cloud computing so it’s good to stay up-to-date with plans for local datacentres. Offering Office 365 services from local datacenters helps customers feel more confident about complying with regulations that require data to be kept in their own region. Microsoft has a regionalised data centre strategy with Office 365 and the billing address of the customer, which the customer’s administrator inputs during the initial setup of the services, typically dictates the Office 365 region and the primary storage location for that customer’s data. You can view these regions on the Microsoft Office 365 Data Maps page. For example, customer’s in Asia Pacific will have their Office 365 hosted in datacentres in Hong Kong and Singapore, however some data may reside elsewhere such as Active Directory and Global Address Book data.
Microsoft announced they’ll be launching Office 365 services from datacenters in Japan (December 2014), Australia (March 2015) and India (late 2015) and these regions will replicate data across datacenters in a single country only.
Customers should be able to create new tenants inside these additional regions as soon as they’re online (for example Japan is available now). Existing customers in the affected regions will have their data moved to the new Office 365 datacenters from September 2015 and will be given six weeks advance notice of their move date.
No news about a UK datacentre as yet.