"Do you think VMware and Microsoft run their cloud on open source solutions?"
No I don't. That's understandable given their solution portfolio and commercial interest. They'd slit their own throats otherwise.
I'd submit 2 data points to demonstrate SCALE difference - Amazon EC2 and Rackspace cloud infrastructure. What do BIG IaaS providers use?
Amazon EC2 is powered by over 454,000 Red Hat derivative Linux servers, running Xen as their hypervisor.
Rackspace owns and operates their own data centers worldwide - not just a data center private enterprise or CSP tenant. They use Xen as their hypervisor.
The difference between 1000s of VM and up to MILLIONS of VMs dictates different hypervisor solution.
Sources:
https://www.quora.com/What-are-the-hypervisors-used-by-big-IaaS-providers
http://www.zdnet.com/article/amazon-ec2-cloud-is-made-up-of-almost-half-a-million-linux-serversup
We are all here to learn and share perspectives. Presumption can go too far, and closes the mind. Personally, I deal with networking solution where 10GE is the slowest supported "client signal". The networks I help design and implement have throughput measured in tens to hundreds of Terabits. Tier 4 DR sites must span the continent and the globe.
No I don't. That's understandable given their solution portfolio and commercial interest. They'd slit their own throats otherwise.
I'd submit 2 data points to demonstrate SCALE difference - Amazon EC2 and Rackspace cloud infrastructure. What do BIG IaaS providers use?
Amazon EC2 is powered by over 454,000 Red Hat derivative Linux servers, running Xen as their hypervisor.
Rackspace owns and operates their own data centers worldwide - not just a data center private enterprise or CSP tenant. They use Xen as their hypervisor.
The difference between 1000s of VM and up to MILLIONS of VMs dictates different hypervisor solution.
Sources:
https://www.quora.com/What-are-the-hypervisors-used-by-big-IaaS-providers
http://www.zdnet.com/article/amazon-ec2-cloud-is-made-up-of-almost-half-a-million-linux-serversup
We are all here to learn and share perspectives. Presumption can go too far, and closes the mind. Personally, I deal with networking solution where 10GE is the slowest supported "client signal". The networks I help design and implement have throughput measured in tens to hundreds of Terabits. Tier 4 DR sites must span the continent and the globe.