This article describes how to update Office SharePoint Server farms with minimal downtime. By following the procedures in this article, you can update servers to add the latest service pack or cumulative update without incurring significant downtime for users. This article describes a step-by-step process for Office SharePoint Server farms that incorporate SQL Server database mirroring.
It often takes several teams or roles in an organization to configure, upgrade, and maintain a server farm environment. To implement this solution, you must confer with network engineers, SQL Server database administrators, and all affected SharePoint farm administrators.
This article is written for IT professionals who maintain server farms that are running Microsoft Office SharePoint Server 2007 with Service Pack 2 (SP2) .
The complete step by step instruction can be found here: http://technet.microsoft.com/en-us/library/ee514459.aspx
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