Upgrading from SQL 2005 to SQL 2012

  • Hello,

    We are planning to upgrade our SQL server from 2005 to 2012, and we also have to move our SQL Server data to a different datacenter.

    I was thinking I could just set up an identical SQL server 2005 in the new datacenter, and start log shipping from the current one to the new one, then set up a new instance of SQL Server 2012. When all the log shipping is caught up and we are ready to make the switch, I would simply turn off log shipping, detach the databases from SQL 2005, and attach them to SQL 2012.

    I was wondering if anyone knew of any complications I might have with upgrading using that method. I know it will take awhile since I need to move about 1.8 tb of data and the network from the old datacenter to the new one is kind of slow.

    Thanks,

    Sam

  • That's a good strategy. Let me ask, why not ship the logs to 2012 directly?

    Also, remember that upgrading an instance is much more than just upgrading the databases: you will have many other objects to migrate (logins, credentials, jobs, maintenance plans...)

    -- Gianluca Sartori

  • Agree with Giancarlo. Log ship directly to 2012. If this may have to work as DR, log ship to both 2005 and 2012, but when you switch, just switch to 2012 and then disable log shipping.

  • I didn't realize I would be able to ship directly to 2012. I did just test it, and it worked just fine, so that is what I will do.

    I realize I will have to update the other objects that are currently in my SQL 2005, and that shouldn't be a problem.

    Thanks for your help.

    Sam

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