GAPTHEGURU

Geek with special skills

How to: Apply a service pack or hotfix SQL Server 2008 to a failover cluster instance

Installing Service Pack SQL Server 2008 in failover cluster is very different than the SQL Server 2005 cluster failover.

With SQL Server 2005, when you start installing cluster service pack (or hotfix), it must be launched on the active node (node that hosts the instance). When installing the Setup will launch simultaneously  “remote silence” on all passive nodes. All nodes in the cluster containing the SQL Server instance are updated in the same time.

With SQL Server 2008, to reduce the downtime, we have revised the method of deployment. Now if you want to apply a service pack (or hotfix), you must install in first on the passive nodes. The passive nodes are updated before the active node.

Therefore, for your instance SQL Server 2008  in failover cluster, you must follow the scenario below for the application of Service Pack, Cumulative Update or Hotfix :

1.  Apply the hotfix on pasive node N2
2.  Reboot the passive node N2
3.  Failover on SQL resource : the passive node become the active node
4.  Apply the hotfix on the passive node N1
5.  Reboot the passive node N1

Advertisements

08/10/2012 - Posted by | Sql Server | ,

No comments yet.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: