I am going to build a new VMware server that will host10-15 Virtual machines (one SBS2011, several Windows 2008R2/2012 Servers, a few Windows 7 or Windows 10 when it comes out).
In the past, I have been buying 600GB 16K SAS (I might add that I have had a bad experience with enterprise SATA drives in terms of performance) and put them on RAID 1 or 10 depending on the space requirements.
A 600GB SAS 15K Drive costs $350 when ordered with DELL servers.
(1) Has SAS become more affordable?
(2) What brand would you recommend?
(3) To generate the disk space of more than 2TB (to house all these VMs), do you suggest that I get qty. 10 of 512MB SSDs or get qty. 4 of 1TB SSDs and put them on RAID 10? Or since SSDs are faster than SAS, RAID 5 is a viable configuration? Of course I would prefer RAID 5 to save $ on # of disks required.
(3) When I checked DELL R Series Rack Servers, there are so many CPUs to choose from. Cores: 4 core to 8 core Speed: from E5-2603 v3 1.6GHz,15M Cache,6.40GT/s QPI,No Turbo,No HT,6C/6T all the way up to E5-2698 v3 2.3GHz,40M Cache,9.60GT/s QPI,Turbo,HT,16C/32T for $3,200 more.
Since I am getting 64GB RAM and fast SSDs (compared to 15K SAS HDs), I can just pick lower end CPUs with 4 core or more?
Thanks for your input in advance.