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SQL 2014 AG with 2012 Replica


SQL 2014 AG with 2012 Replica

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slim.richard
slim.richard
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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 Smile
Perry Whittle
Perry Whittle
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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 Smile

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" ;-)
slim.richard
slim.richard
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Thanks for that. It was what i was expecting but haven't found anything in the documentation.

Cheers.
Perry Whittle
Perry Whittle
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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" ;-)
Perry Whittle
Perry Whittle
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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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