Running Windows Server 2003 under Exchange 2007 on an HP ProLiant ML110. I am utilizing RAID 1. I would like to add another hard drive, break the mirror, and separate the transaction logs from the system drive. It has come to my attention that the disc mirror is causing the hard drive to actually work harder with more read operations and breaking that mirror will actually improve performance and reduce paging. Currently paging at 2GBs. Also planning a 2GB memory upgrade.