Were looking into our first virtual server setup. I have always configured servers with the OS on one array (usually Raid 1) and data on another array (either raid 1 or 5). I am not quite sure how this works in a virtual setup though.
1. Would the Hyper-V management be on a separate array or virtual disk?
2. Do virtual servers take up the same amount of disk space for the OS with each virtual server or are some things shared?
3. Is it still a good idea to try and put the OS on one array and data on another, or does this change with a virtual environment?
In our case, we would be looking to put 4-5 virtual servers on the machine. Exchange 2010 (approx 100 users), Sharepoint, and 2-3 very low usage virtual servers on the same box. What would you recommend?
Option #1 – 1 Raid 10 array for Exchange & HyperV management and 1 Raid 10 for Sharepoint and everything else.
Option #2 – Raid 1 for Hyper V management, 1 Raid 10 for Exchange, 1 Raid 10 for Sharepoint, and a Raid 1 for everything else
Any other suggestions? Yes, cost is an issue, but we don’t want a slow server either. Using 2 Raid 10 arrays also would require a DAS box which adds a lot to the price. We need to allow room for growth though. We are trying to find a good balance between performance and price.