With the increasing numbers of Cloud Service Providers it is very important to know how each Cloud Management Platforms (CMPs) performs in an open cloud ecosystem. OpenNebula, OpenStack, CloudStack all are Cloud Management Platforms with different flavours.
| CATEGORY | OPENNEBULA | OPENSTACK | CLOUDSTACK |
|---|---|---|---|
| Cloud APIs and User Interface |
OCCI (Open Cloud Computing Computing Interface) and EC2 API
| NOVA API compatible with EC2(Elastic Compute Cloud) and S3 AWS | Amazon Web Services |
| Development Model | Public development | Public development | Public development |
| Production Readiness | Enterprise-ready and direct support from developers | No, only available through any of the several vendor specific stacks | Enterprise-ready and direct support from developers |
| Programming Language | Java and Ruby | Python | Java |
| Networking Model | VLAN |
Flat
Flat DHCP
VLAN DHCP
| VLAN’s, security groups |
| Architecture |  |  |  |
As per the users if we compare these then it is seen that Openstack has the largest active population then comes Cloudstack followed by OpenNebula. Peder Ulander, vice president of product marketing for cloud platforms at Citrix says Openstack is a technology in itself. JC Martin is a cloud architect at eBay runs 50% of the site’s business on Openstack. In this Stack Wars Openstack has definitely made its way through into the Ites kingdom.
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