In this white paper, a series of mailbox building blocks were tested using Microsoft Exchange Server 2007 Enterprise Edition. The building blocks were used to measure performance of a virtualized mailbox server role using VMware Infrastructure 3, running on an HP ProLiant DL580 G4 server. - Deploying Microsoft Exchange Server 2007 mailbox roles on VMware Infrastructure 3 using HP ProLiant servers and HP Storage works. - White Paper - 4AA1-5890ENW.pdf
You can download the file clicking here.