I am contemplating whether this setup will be sufficent for a Exchange Server 2003 Deployment. Please look over the following hardware configuration and see if it will meet my performance expectations.
Enviroment: Windows 2003 Server with AD. 25 users with a planned expansion to 150 within next three years. All users use email and MSN Messenger.
Intel P4 3.2E GHz Processor with HT
4GB of DDR 400 ECC
WD Raptor 36.7GB Drives in RAID 1 Array (OS Drive)
Segate 36.7GB U320 Drives in RAID 5 Array (Database and Logs Drive in Two Drive Letters)
Intel Gigabit Ethernet Adapter
Intel Server Board
Will the configuration meet my needs? Would you change anything about this configuration and why? At what point do I need to go dual processor?