Any Issues with ArcSDE 9.3.1 and SQL Server 2008 R2 64-bit?

[RandyKreuziger]

We are running 64-bit ArcSDE 9.3.1 with 64-bit SQL Server 2008.  Are there any issues with upgrading SQL Server to R2?

[ThomasDunn]

This is a supported platform.  Please see the System Requirements page at
http://wikis.esri.com/wiki/display/ag93bsr/ArcSDE+Microsoft+SQL+Server+Database+Requirements

There should be no issues upgrading from SQL Server 2008 (RTM through SP2) to R2.  Nevertheless, always back up your databases before performing any upgrade.  When possible, test your upgrades on a development system before upgrading your production system.