Impact of SQL Server 2012 cu installation on SP 2013 on premise

Question

I have to install the KB4019090 on my SQL Server 2012.

My SharePoint 2013 farm with MS Project 2013 depends of it.

What are the best practice to follow to make sure my farm will be up and running after the update?

Thanks a lot !

Regards,

Answer 1

I have installed tons of SQL-Server Updates on lots of SharePoint farms. SharePoint never got broken.

But if you heavily rely on that environment, you should have a testing-environment that matches prod environment as close as possible. You can install updates there and check if everything works as expected. Checklists are very helpful to standardize this process. You should also get your application-owners involved to help you building those checklists!

I would recommend to install Cumulative Update 10 for SQL-Server 2012 ServicePack 3 (KB4025925) instead of KB4019090. The hotfix is contained in the CU. CUs are tested way more intensive by Microsoft than a hotfix.

The process of installing the update is very straightforward:

• Make sure you have a working full backup!
• Shut down your SharePoint-Server. This makes sure every database-connection is closed. Just stopping IIS will still keep lots of connections open.
• Install the Update on SQL-Server. If necessary, restart the Server
• Make sure SQL Server works as expected (e.g. by connecting via SQL Server Management Studio)
• Start SharePoint and check if everything works as expected.