Additionally, when there are multiple tempdb data files, if the tempdb data files do not have the same initial size or autogrowth size, an informational message that resembles the following is logged in the SQL Server error log:
The equal sizing of data files is important because the proportional fill algorithm is based on the size of the files. If data files are created with unequal sizes, the proportional fill algorithm tries to use the largest file more for GAM allocations instead of spreading the allocations between all the files. This defeats the purpose of creating multiple data files.
This update helps you check whether you are following the best practices recommendations in the Working with tempdb in SQL Server 2005 TechNet article.
This update is included in the following service packs for SQL Server:
Concurrency enhancements for the tempdb database
SQL Server urban legends discussed
Compilation of SQL Server TempDB IO best practices
Learn about the terminology that Microsoft uses to describe software updates.