HyperV Role and how many machines

Question

I'm trying to find out if what I am thinking about can be done using Hyper V on 2008 R2..I have 1 physical box running Server 2008 R2..I have the Hyper V role installed on that box..I have server 2008 R2 running on 2 virtual machines within Hyper V..One
is the domain Controller with DNS, DCHP..The other is my Terminal Server with 2 apps published..My question is, can I have 8 virtual machines running within the Hyper V.The Domain Controller and the Terminal Server, also 6 machines running windows 7 ultimate,
and connect to each machine threw the remote desktop services..
SirVid

Answer 1

If you just wanted to buy licenses from NewEgg, sure, I believe that would work. I don't know if there are any block license purchases you would be eligible for, but that may be worth exploring from a cost-perspective
Regarding hardware, there's a few factors. CPU is largely down to how many cores you have. You can run 2-3 virtual CPUs per core without  too much hassle at all. RAM - well, ideally as much as you're committing to VMs. You can over-allocate memory,
just note that you'll run in to issues if all those VMs then request that memory. 1GB is not a huge amount per Windows 7 instance, so you may well find those VMs request and use all 1GB you would be assigning them. Assuming you're giving the two server VMs
1GB RAM, you'd want 8GB in there at a minimum, but factor in the Hyper-V itself is going to require some resources as well.
Hard drive wise, it's more the I/O on the drive and only having one spindle. If each VM is trying to write to disk, it's going to really cause some latency as it's waiting to do so. There's only drive that can be written to at a time. The more spindles,
the more I/O can be distributed across them (to a point - you then have a slight RAID penalty due to writing out the parity bit...). But, ideally - yes, add in at least one or two more disks and configure a RAID set, the choice of RAID set being dependent
on how many disks you end up with and what your tolerance for failure is. If you only have one or two disks, you don't have anything other than RAID 1 that will allow you to recover from a drive failure, and RAID 1 isn't going to improve your performance.
If you were able to upgrade to Windows Server 2012, you could use storage spaces to distribute your storage rather than hardware/software RAID at the underlying hardware level, but with only running Server 2008 R2 that unfortunately is not an option.