SQL 2014 AG with 2012 Replica

  • Hi all,

    Is it possible to have a 2014 Availability Group with a read-only secondary Replica in SQL 2012. The replica will never be failed over to or written to, just used as a readable replica.

    Thanks in advance 🙂

  • slim.richard (5/7/2014)


    Hi all,

    Is it possible to have a 2014 Availability Group with a read-only secondary Replica in SQL 2012. The replica will never be failed over to or written to, just used as a readable replica.

    Thanks in advance 🙂

    No, you cannot replicate down versions. You could have a 2012 AO group with a 2014 replica, this would be used for migration purposes.

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

  • Thanks for that. It was what i was expecting but haven't found anything in the documentation.

    Cheers.

  • No, it should be detailed under backup\restore databases. You cannot move down versions, only upwards

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

  • Found it. The "Compatibility Support" section of this link details the following

    RESTORE (Transact-SQL)


    Note

    No SQL Server backup be restored to an earlier version of SQL Server than the version on which the backup was created.

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

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