Before you migrate your database using the Configuration wizard, consider how the different requirements for stand-alone systems and Windows clusters can impact where the SMTP and MTA queues and the report directories should reside.
The SMTP and MTA queue location
The Simple Mail Transfer Protocol (SMTP) and Message Transfer Agent (MTA) queues are used by Exchange. Ensure that these files do not reside on the same LUN as your Exchange databases.
For stand-alone systems, the SMTP and MTA system files can be placed on any disk, or on a LUN that does not contain Exchange databases (the default location of the original local installation disk is acceptable).
For Windows clusters, the SMTP and MTA system files must be moved to a shared LUN that does not contain Exchange databases. This is the data directory that Exchange prompts you to specify when you create a new Exchange virtual server on a cluster. The data directory becomes the default system path. The Configuration wizard places the MTA and SMTP queues there by default.
Note: In Exchange Server 2007, the SMTP queue is valid only if the bridgehead, or the Hub Transport server role is installed. The MTA queue is not applicable to Exchange Server 2007 and Exchange Server 2010.
Report directories in a Windows cluster
In a Windows cluster you might want to have one set of report directories, no matter which node SnapManager runs on. Move your report directory to a shared disk resource that does not contain Exchange data or SnapManager data.