We're starting the due diligence process to migrate a 2003 Small Business Server utilized as Domain Controller and Exchange server. Due to migration limitations, we will be migrating to Server 2008 R2 and Exchange 2010. New server/hardware has not been purchased.
Currently we have about 85 users and Exchange database is maxed out at 75GB. We would prefer purchasing/utilizing 1 server. It appears there are various configuration options utilizing Hyper-V on one hardware platform. This is where I get confused. What options are preferred and recommended?
1. Configure 2 VM’s one as Domain Controller. One as Exchange server. (What happens when physical machine is restarted? Is the DC available when the physical machine boots? Does this cause issues if the VM Domain Controller hasn't started?
2. Configure the domain controller for physical hardware, (joined to domain). Configure Exchange as VM.
3. Utilize 2 RAID configurations – One RAID 1 for OS and domain controller roles. One RAID 5 or 10 for Exchange.
4. Utilize one RAID 5 or 10. Create separate Volumes from RAID controller for DC and Exchange. (Wouldn't this limit the ability to grow/increase VM’s storage dynamically?)
Any thoughts or suggestions would be appreciated.