Microsoft License Mobility & Limitations
By Scott Rosenberg, Miro Consulting
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What is License Mobility?
License Mobility refers to the ability to move virtual instances from host to host and between server farms without the constraints of Microsoft’s license reassignment rule. Microsoft restricts reassigning a license from one server to another or from one device to another more frequently than every 90 days (This is often referred to as Microsoft’s “reassignment rule”). License Mobility is a Software Assurance benefit.
The limitations of License Mobility
Microsoft’s Product Use Rights state very clearly that you may not reassign licenses on a short-term basis (within 90 days of the last assignment). However, licenses can be reassigned sooner if the licensed device or server is retired due to a permanent hardware failure. That’s a constraining and very strict rule that talks about when the 90-day timeframe is set aside and it talks specifically about hardware failure.
It’s complex and easily misconstrued but it’s a trend that we’re seeing over and over again. Microsoft is associating Software Assurance to many, many new benefits – License Mobility is just one of them.