upgrade 2012 from 2008 to add to always on solution

  • I have a sql 2008 log shipping solution which will be changed to always on soon. It is sql2008r2 on windows 2012. Should a simple upgrade of the sql server to 2012 work on this box before adding it to the solution, or is it really necessary to remove and the install 2012?

  • an upgrade is perfectly viable as long as it's between supported editions. What is the state of each node for cluster membership? Is the current instance a Failover Cluster Iinstance of sql server?

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    "Ya can't make an omelette without breaking just a few eggs" 😉

  • should have elaborated plan is

    have a win2008/sql2008r cluster log ships to a stand alone 2012/sql2008r2 server.

    Plan on killing log shipping upgrade win2012/sql2008r2 box to win2012/sql2012

    Take one node out of win2008/sql2008r2 cluster, blow box away, make win2012/sql2012 cluster

    Move databases to new cluster.

    Kill remaining win2008 node, rebuild as 2012 and add node to new cluster.

    Create always on.

    All nodes will be sql enterprise edition

  • do you want the AlwaysOn solution to reatin a failover cluster instance as a replica? There are restrictions by doing this 😉

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    "Ya can't make an omelette without breaking just a few eggs" 😉

  • the cluster is a standard active/passive cluster, the other node will actually be used for reporting. Forgot to mention will add a stand alone win2012/sql2012 machine for DR

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