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Installing SPs & CUs in Clusters Expand / Collapse
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Posted Wednesday, April 17, 2013 4:50 AM
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This Knowlege Base article describes the procedure for installing Service Packs & Cumulative Updates on SQL Clustered instances.

Is says that before installing the update on a passive node, it should be removed from the list of possible owners on the cluster. In Windows 2008 R2, I don;t see a list of possible owners, I see preferred owners. Is this the same thing? Or does it mean I have to remove a node from a cluster before updating, then add it back in again?
Post #1443183
Posted Wednesday, April 17, 2013 5:22 AM
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in failover cluster manager, select the SQL service.

right click the server name select properties. possible owners are on the advanced policies tab. Untick the passive node.

don't remove the node from the cluster before patching.


edit - its not the same thing as preferred owners


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Post #1443195
Posted Wednesday, April 17, 2013 6:11 AM
Mr or Mrs. 500

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Found it - Thanks.

Unfortunately, the CU upgrade is still failing.

Post #1443212
Posted Wednesday, April 17, 2013 7:12 AM


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the reason for removing the passive node as a possible owner on the networkname resource is to avoid the situation where you're patching the passive node and half way through the installation the clustered instance attempts to failover to the node you are midway through patching, this could cause severe corruption.

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Post #1443245
Posted Wednesday, April 17, 2013 7:28 AM
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Does pausing the passive node you're installing on have the same effect and is an equally valid action?
Post #1443255
Posted Wednesday, April 17, 2013 7:32 AM
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in my experience pausing the node causes it to fail the pre-installation checks.

removing from possible owners is the best way to go.


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Post #1443257
Posted Wednesday, April 17, 2013 7:47 AM


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dan-572483 (4/17/2013)
Does pausing the passive node you're installing on have the same effect and is an equally valid action?

This was only really necessary under Windows 2003 clusters. Windows\sql 2008 have many improvements.


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Post #1443267
Posted Thursday, April 18, 2013 7:30 AM


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Well, I have patched via SP and CU's on SQL2008 and SQL2008R2 clusters doing the passive node first, then failing SQL Server over and then patching the other node without any isues quite a bit.




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