Below is a list of how Microsoft recommends that the disk subsystem be structured on a high performance Exchange Server to minimize disk I/Os.
|C:||Direct-attached storage (RAID 1)||Windows, Exchange system files|
|D:||Direct-attached storage (RAID 1)||Pagefile|
|E:||SAN RAID 0+1||MTA queues and SMTP queues|
|F:||SAN RAID 1||Log files for first storage group|
|G:||SAN RAID 0+1||Databases for first storage group|
If your server contains multiple Exchange Server storage groups, Microsoft recommends that you create extra volumes. For each Exchange Server storage group, the Exchange log files should be placed on a SAN-based RAID 1 array, while the Exchange databases should be placed on a SAN-based RAID 0+1 array.
BEST PRACTICES GUIDE: EXCHANGE SERVER DISK PERFORMANCE
Part 1: Disk performance best practices for Exchange Server databases
Part 2: Disk performance best practices for Exchange Server transaction logs
Part 3: Disk performance best practices for MTA and SMTP queues
Part 4: Disk performance best practices for Windows pagefiles
Part 5: Disk performance best practices for Exchange Server indexing
Part 6: Disk performance best practices for deleted Exchange database pages
Part 7: Microsoft recommendations for an Exchange disk subsystem
Part 8: Related links on Exchange Server performance management
|ABOUT THE AUTHOR:|
| Brien M. Posey, MCSE
Brien M. Posey, MCSE, is a Microsoft Most Valuable Professional for his work with Exchange Server, and has previously received Microsoft's MVP award for Windows Server and Internet Information Server (IIS). Brien has served as CIO for a nationwide chain of hospitals and was once responsible for the Department of Information Management at Fort Knox. As a freelance technical writer, Brien has written for Microsoft, TechTarget, CNET, ZDNet, MSD2D, Relevant Technologies and other technology companies. You can visit Brien's personal Web site at http://www.brienposey.com.