This has been blogged about by a number of sources, but to make sure that everyone has see this, I figured I would also blog about it.

This white paper details some of the frustrations with Exchange 2003 storage design and how Exchange 2007 addresses them. It then discusses some best practices for storage design such as:

• Eliminate critical single point of failures
• Using Enterprise-class storage
• Using the Keep It Simple Stupid (KISS) principle
• Create standards for all servers
• Design storage not just for capacity but also performance
• Creating monitoring standards
• Limiting database size
• Performing backups

If you want more information on these best practices, check out the entire paper here.