What does MS Exchange Server 2010 Service Pack 2 offer when it says it supports "hybrid deployments"?


The new Service Pack 2 for Exchange was just released, and one potentially notable introduction is new support for "hybrid deployments". I know Microsoft is trying to establish itself as a strong player "in the cloud", but what exactly do they mean by supporting hybrid deployment? One that is sort of in the cloud and sort of not, I assume, but what new functionality are they providing with this Service Pack that was missing before?

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Adding to what was already posted, I think that it's part of an overall Microsoft effort to migrate customers to the cloud, and Service Pack 2 has a new configuration wizard that should make it easier to configure deployments that are both at their physical location and in the cloud, as well as let the local Exchange connect to the cloud version.  Remember Microsoft's Ballard said recently that MS was "all in on the Cloud".  


Ars Technica had a piece about Exchange Service Pack 2 recently that explained a little about hybrid deployments:  "Hybrid deployments were first introduced with the RTM release of Exchange 2010. They allow companies to migrate from on-premises Exchange installations to cloud-based ones in a piecemeal fashion. In a hybrid deployment, mailboxes, calendars, and contacts can reside locally or in the cloud; Exchange will ensure that messages are routed appropriately and shared data is available to users of both systems."



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Hi pwarren,

See this paragraph from the release announcement:

"Hybrid Configuration Wizard Organizations can choose to deploy a hybrid scenario where some mailboxes are on-premises and some are in Exchange Online with Microsoft Office 365. Hybrid deployments may be needed for migrations taking place over weeks, months or indefinite timeframes. This wizard helps simplify the configuration of Exchange sharing features, like: calendar and free/busy sharing, secure mailflow, mailbox moves, as well as online archive."

Here's the link to the full article:


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