Thanks Kelly - that was very useful. I ended up using the following links along with some additional text:
- "CloudStack vs. OpenStack": http://www.cloudops.com/2013/06/cloudstack-vs-openstack-a-personal-experience/ - "Is CloudStack more enterprise ready than OpenStack": http://www.datamation.com/cloud-computing/is-cloudstack-more-enterprise-ready-than-openstack-1.html - "CloudStack Overview": http://www.slideshare.net/gavin_lee/cloud-stack-overview - OpenStack architecture diagram: http://vmartinezdelacruz.com/wp-content/uploads/2013/01/openstack-logical-arch-folsom.png On 21.06.2013, at 18:45, Kelly Hair <[email protected]> wrote: > Prodosh, > > > High level comparison of CloudStack vs. OpenStack: > > * Product vs. project focus > * Simplicity vs. Complexity > * Scalable vs. non-scalable > * Enterprise & "Amazon style" vs. "Amazon style" workload support > * AWS compatibility vs. OpenStack specific API > * Maturity of CloudStack vs. OpenStack > > Product vs. project focus > > > CloudStack is an integrated product complete with a working portal and > multiple APIs (CloudStack API or AWS EC2). OpenStack is a promising set > of projects (think there's 15 now but I may be corrected). > > > Simplicity vs. Complexity > > > See: > http://vmartinezdelacruz.com/wp-content/uploads/2013/01/openstack-logical-a > rch-folsom.png A picture is worth a thousand words :) Anyhow, this > translates to longer POCs and longer integration cycles, so while that's > great for integrators, it's not so wonderful for the end customer. > > Scalable vs. non-scalable > > > I may need to be updated on this but I think OpenStack's Nova can only > support ~ 500 physical hosts. This may have increased in Grizzly but not > sure. Anyhow, Apache CloudStack (ACS) can scale ~ 5K hosts per management > server. In addition, ACS is horizontally scalable so just keep adding as > you need to and load balance the Management servers. > > Two workloads > > Apache CloudStack can support not only the newer "Amazon style" > architectures but also traditional architectures generally deployed on > VMware vSphere. OpenStack is focused on the "Amazon style" only. > > AWS EC2 Compatibility > > Both Apache CloudStack & Eucalyptus have emphasized AWS EC2 API fidelity. > One can use either the CloudStack API or EC2 API so there's a choice. > OpenStack has its own API that's different. Some of that may be > historical as Rackspace is competing with AWS. However, there has not > been an emphasis in the OpenStack community to support EC2. We all know > Amazon is the 800lb gorilla! > > Maturity > > OpenStack is making excellent strides in this department but maturity > happens over years. Apache CloudStack has a history that dates back to > 2008 when a startup called VMOps set out to provide software for companies > to build their own Amazon like clouds. VMOps bought the name cloud.com, > and then in 2011, Citrix bought cloud.com. Over the years, the product > matured and Citrix alone has over 150 paying customers that have used the > software to build IaaS clouds. In 2012, the software was donated to the > Apache Software Foundation & it graduated in March 2013 as a full fledged, > top level project. > > Again, OpenStack has a number of big name vendors spending a massive > amount of money to promote it. The difference with CloudStack is that it > is much more of a member/user driven community rather. > > Extra Bonus: > > I'd suggest reading this article as well: > http://www.datamation.com/cloud-computing/is-cloudstack-more-enterprise-rea > dy-than-openstack-1.html Both Chris & Ilya from WebMD frequent the > mailing lists. > > Hope this helps! > > Best, > Kelly > > > > > > > > On 6/21/13 12:20 PM, "Prodosh Banerjee" <[email protected]> wrote: > >> Hi, >> >> A potential client is looking for a comparison between CloudStack and >> OpenStack. So far, I came up with the following: >> >> http://www.cloudops.com/2013/06/cloudstack-vs-openstack-a-personal-experie >> nce/ >> >> I was wondering if you had any more or better suggestions? >> >> This is useful information for all of us who are trying to sell >> CloudStack based solutions and it might be useful to have a package of >> such information in circulation for all of us to use. >> >> Thanks in advance and best regards >> Prodosh >> >> Prodosh Banerjee >> Managing Partner, Anolim GmbH >> >> Tel: +41 43 541 5704 >> Email: [email protected] >> Web: http://anolim.com >> Skype: p.banerjee >> >> Alte Landstrasse 64 >> 8800 Thalwil >> >
