SQL Server Enterprise cluster replication and Service Pack level consideration

Hi People,

I'd like to know if it is possible to make the DB replication between sites with different version of SQL Server 2008 like the following:

Production site: Active-Passive SQL Server 2008 R2 SP1
DR site: Active-Passive SQL Server 2008 SP2

if that is not possible can I actually install two types of SQL Server in the DR sites same servers as a cluster ? so it will be like:
DR site:
Active-Passive SQL Server 2008 SP2 - Instance1
Active-Passive SQL Server 2008 R2 SP1 - Instance2

and also if I patch one of the DB 1 within the Production instances SQL Server with SP1 does that affects the other instance as well ?

Production site:
Active-Passive SQL Server 2008 R2 SP1\Instance1\DB1
Active-Passive SQL Server 2008 R2 SP1\Instance1\DB2

Thanks.
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Senior IT System EngineerIT ProfessionalAsked:
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Kent DyerConnect With a Mentor IT Security Analyst SeniorCommented:
You want all of your SQL Boxes to be the same SP level as much as possible.

I would very carefully read the following chart to insure that you are able to complete the task with your version of SQL server:

http://msdn.microsoft.com/en-us/library/cc645993.aspx#Replication

More information on Active Passive, etc.

http://social.msdn.microsoft.com/Forums/en/sqldisasterrecovery/thread/05cf41b7-c558-44bf-86c6-12f5c2b2ffe2

Here is a Word Doc that goes into more detail for you for SQL 2008..
http://download.microsoft.com/download/6/9/D/69D1FEA7-5B42-437A-B3BA-A4AD13E34EF6/SQLServer2008FailoverCluster.docx

HTH,

Kent
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