I need a Server for hosting several virtual machines.
I want to run 3-5 Linux systems (mostly Debian) VMs for webserver, database, GitLab, ldap and also a fileserver.
I can choose between these two servers:
1. IBM x3650 M3 Rackserver
1x Intel Xeon E5645 Hexa Core 2.40GHz
64GB DDR3 RAM ECC R
2x146GB SAS 2.5"
2. IBM x3650 M3 Rackserver
2x Intel Xeon E5620 QUAD Core 2.40GHz
32GB DDR3 RAM ECC R
1x146GB SAS 2.5"
The HDD space isn't that important, I'm going to extend it anyway.
Now my questions:
1. Which configuration of the IBM x3650 M3 Rackserver should I choose for my use case and why?
2. Is extending the HDD Space a big deal? Can I just use any 2.5" SAS HDD, for example a HP one or only IBM HDDs?
3. Can both of these Server run Windows Server 2012 R2?
Thank you very much.