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Stack wars: OpenStack v. CloudStack v. Eucalyptus
http://www.slideshare.net/bizalgo/cloudstack-vs-openstack-vs-eucalyptus-iaas-private-cloud-brief-comparison
Kranowski described CloudStack as having a monolithic architecture, installation processes that required a medium level of time and expertise, a strong GUI and Amazon EC2-like command line interface, offering baseline security ties and offering some load balancing capabilities.
Kranowski said that Eucalyptus’ architecture comprises five parts, similar to AWS, a medium level of install difficulty, and a limited administrative GUI that needs quite a bit of help from a command line counterpart. Also, Eucalyptus has a key management model of security in which the five architectural components need to register with each other.
He described OpenStack as having a fragmented, distributed architecture, rated it as difficult to install, and said it gets driven by multiple CLIs, has a strong, token-based security system, and uses Swift – the OpenStack massively scalable redundant storage system as the linchpin of its high availability story.
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