Via Greg Lowe, I see there’s a new white paper out on disk partition alignment for SQL Server:
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=5b343389-f7c9-43d0-9892-ddcf55890529
Of course its main focus is the SQL Server relational engine, but it’s all equally relevant to Analysis Services. If you’re running Analysis Services on Windows 2003 or before (or even if you’re running Windows 2008 but your partitions were created on an earlier OS) then this is a must-read.
