Apache CloudStack vs. Cloudzatic

Whether our clients are VPS hosting providers or operate private cloud infrastructure for their internal enterprise requirements, CloudStack provides solutions in an easy to implement and operate way that is simple to provide training for. The learning curve for our customesr adopting CloudStack for the management of their cloud infrastructure is shallow, enabling our clients to come up to speed quickly without having to outsource their administrative functions any longer than necessary

• Low-cost solution
• Open-source
• Engaged community
• Solid documentation
• Is a very reliable tool for orchestration with good usability

Incentivized

• Sometimes you can find undocumented bugs that can compromise the entire infrastructure.
• [If] you don't have an official support channel, you have try to find out the source of the problem by yourself.
• Volume size limitation. Other players allow you to create volumes up to 64TB while ACS allows only 2TB volumes

The University, my first large implementation, had a big issue with 149 small data centers spread on São Paulo State, this data centers costs to university were very high, the consolidation idea in two data centers were awesome, but were worried with the management, so we adopted ACS to management of all 576 physical hosts. Now a days the university is delivering IaaS for all staff, students, teachers and researchers, they are using these resources to delivery services to their clients and have a great results in research area

• Low-cost solution (free and open-source)
• More than 2000 users using it simultaneously
• Stable and reliable
• Up and running since 2012

Incentivized