Best/Suitable Virtualization technique/technology?
We brought 4 physical servers with the following specs:
140GB RAM, ~2TB HDD, Intel processor which supports virtualization.
We used to have 20 physical servers(these host virtual machines)which run citrix xen and with a SAN(5TB) attached.
But, now we have 4 servers(as i mentioned above)with 8 300GB Hard disk(~2TB). So we are thinking we can dump our STORAGE(SAN) and we want to use the local Hard disks on each servers for storing the virtual machines images.
1.we are checking KVM and to use Openstack if possible.
2. Gluster or cehp.
Please help me.
I'm not much familier with these technologies, so if you find anything wrong in my question please correct me.