failover cluster between win 2008 and win 2012

Yacine Yacine 1 Reputation point
2021-03-17T12:13:48.113+00:00

Hello currently I have 3 exchange 2010 server under windows 2008 r2 in a DAG configuration, I want to add a new exchange 2010 server under windows 2012 r2. is it possible to do that ?? Let's know, I couldn't add this new win2012 server in the failover cluster already created under windows 2008 thank you for your help

Windows Server Clustering
Windows Server Clustering
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Clustering: The grouping of multiple servers in a way that allows them to appear to be a single unit to client computers on a network. Clustering is a means of increasing network capacity, providing live backup in case one of the servers fails, and improving data security.
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  1. Xiaowei He 9,876 Reputation points
    2021-03-18T06:10:46.68+00:00

    Hi,

    Cluster nodes should have the same OS version.

    Mixed version cluster only exists in a few scenarios, such as cluster rolling upgrade. So, it's not recommended to add Windows Server 2012 server into Server 2008 R2 cluster.

    About cluster rolling upgrade:

    https://learn.microsoft.com/en-us/windows-server/failover-clustering/cluster-operating-system-rolling-upgrade

    Thanks for your time!
    Best Regards,
    Anne

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