Q: Can I migrate
services from my Windows Server x cluster to a Windows Server 2012 R2 cluster?
A: Microsoft provides
an n-2 cluster migration support. This means the migration of clustered
services is supported from two versions back.
This
means that for a Windows Server 2012 R2 target, cluster then services can be
migrated from Windows Server 2012 clusters (n-1) and from Windows Server 2008
R2 clusters (n-2). It's important to note that migrating cluster services
doesn't copy storage--when migrating services, the cluster storage is moved
from one cluster to another. Only the configurations, which are effectively
registry values, are moved from the source to the target cluster.
If
you have an older cluster, for example Windows Server 2003 R2, and want to move
to Windows Server 2012 R2, then one option is to stand up a temporary Windows
Server 2008 R2 cluster and use that as an interim hop for the migration of
services to Windows Server 2012 R2.
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