Server Spec for Virtualization
I've just been given the go ahead for updating our servers, and have decided on the virtualization route for consolidation. I am after peoples opinions on what spec servers I should get for hosting the VMs.
First a bit of background, we are a 3 form primary with approx, 480 users, and 160 PCs / Laptops. We currently have 9 physical boxes serving our network, with all the usual roles: DC x 2, DHCP, DNS, WSUS, App / Print Server, Antivirus, MS SQL, MIS, Exchange, Web Server, and Spam / Web filter, etc.
I'm eventually looking at virtualizing all these roles, although I'm planning on keeping one of the DCs as a physical box.
Our current storage usage is around 300GB inclusive of user areas / profiles / exchange / shared areas / WSUS etc. but excluding OS space requirements.
Given our current space usage, and projected growth, I cannot really justify the cost of going down the SAN route (although I would like to in the future). So I'm thinking local replicated storage (drbd, etc.) which should also allow for failover in case of hardware failure.
Reading through similar threads, I have cobbled together the following spec on which to host the VMs:
Dell PowerEdge R710 x 2
2x Intel Xenon E5530
PERC H700 RAID
Raid 1 (SAS) For host OS
Raid 5 (SAS) - undecided on size) For VM storage
Embedded Gigabit NIC 4 Port
2x Intel Gigabit NIC 4 Port
Now it's been a while since I've had to spec any hardware, and I don't have too much experience of server virtualization, so would appreciate any input that anyone can give.
Appologies for the verbose post!