Examining the In-Place Upgrade Scenario

The first and most straightforward option for upgrading to SharePoint 2010 is the in-place upgrade option. With this option, an existing SharePoint 2007 server is upgraded in place to SharePoint 2010. The advantage to this approach is that it is easy to perform and utilizes existing hardware and preserves custom farm settings such as Audiences or Search customization. The main disadvantage to this approach is that the hardware must be SharePoint 2010-capable and there is no going back when the migration starts.

The key to this approach is that the existing servers must be SharePoint 2010-compliant, which means they must be running the following minimum levels of OS and software:

• Windows Server 2008 x64 or Windows Server 2008 R2 x64.

• SQL Server 2005 x64, SQL Server 2008 x64, or SQL Server 2008 R2 x64 for the database.

• Service Pack 2 for WSS 3.0 and MOSS 2007, if using those products. For a list of other compatible upgrade versions of SharePoint, reference Table 5.1.

More on this option, including step-by-step instructions on how to perform an in-place upgrade, are provided later in this chapter.

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