Moving Database Files to Another Drive
You may occasionally have the need to relocate database files. What are some reasons that may prompt the need for this type of change? First, someone might have discovered that the database files are on the same drive as the operating system. For a discussion of why you don’t want to do this see this post. Second, your database might simply be outgrowing its current drive. Third, perhaps someone installed the transaction log file on the same drive as the mdf file.