The following validation messages can appear when Exchange Server data or log files are stored on the same disk or SAN volume that does not meet Exchange Server recommendations or requirements:

Typically, one of these adjustment messages appears when you have modified a capacity model and chosen to store a combination of log files, data files, replica data, and replica log files on the same disk or SAN volume.

To make the required adjustments, use the following procedure:

If you need to add additional disks to a server's hardware configuration, see the How to Modify a Computer or Device Configuration in the Hardware Editor topic.

Capacity Planner sizes storage for Exchange Server 2007 with the following criteria:

For more information about Exchange Server storage sizing, see Mailbox Server Storage Design on the Exchange Server TechCenter (

The Exchange Server 2007 Mailbox Server Role Storage Requirements Calculator can help you to determine your storage requirements, such as I/O performance and capacity, and an optimal LUN layout based on a set of input factors. For more information about the storage calculator, including details about using it, see the Exchange 2007 Mailbox Server Role Storage Requirements Calculator on the Exchange Team blog (

See Also