How can you build a cloud with 1 hypervisor? Thats just a VPS node. You'd need 2-3 to start with, along with a management server. Where will the cloud instance cold migrate to in event of hardware failure? I do agree it will still be scalable.
Originally Posted by hostus-ryan
You will need storage, this can be in a SAN or more reliably Onapp now offers onboard storage utilizing the hard drives in hypervisors themselves. Reason it's more reliable, SAN goes down/breaks/dies, your cloud is down! SSD's or high performance SAS is recommended for storage.
You will then need a few higher end switches, to plug in network and storage. You will need stacking modules to stack these together. And you will need a lot of network cabling.
It can be pretty complicated as it is not just plug and play like the way you plug a normal server into a switch, there is a fair bit or network/storage engineering required. You are better off just "hiring" a private cloud infrastructure service, unless you do want to fork about £10k or so on hardware/switches and a rack.
For software you really have a choice between OnApp or Openstack, a lot of larger providers opt for OnApp as it's supported by OnApp/UK2, so it has business/corporate support. I believe RHEL actually offers support packages for openstack as well, however.
Here's what OnApp suggest: http://onapp.com/cloud/requirements/ http://onapp.com/storage/
Last edited by codu; 11-10-2013 at 07:00 AM.
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