The Pros and Cons of Private and Public PaaS
June 14, 2013
Grazed from Virtualization Practice. Author: Mike Kavis.
I just returned from attending the Cloud Expo in New York City this week. The conference was dominated by private and hybrid cloud topics. There were several private Platform as a Service (PaaS) vendors attending whom I spent a great deal of time talking to as I walked the floor. It seems these days that many enterprises default to private and hybrid clouds and therefore insist on private PaaS as well. It is critical that consumers of PaaS services understand the pros and cons of both public and private PaaS before making a commitment to a PaaS deployment model.
Public PaaS
Public PaaS solutions are platforms that run on the public cloud. The first PaaS solutions in the market place dictated both the stack that the code would be written in and the location of the datacenter that the code would be run on. For example, Force.com requires a proprietary language called Apex, and all of the Apex code runs on Force.com’s datacenter. Google’s PaaS forces developers to write in Python and runs the code in the Google datacenters. Microsoft’ PaaS requires .NET and runs in their datacenters…
The downside of these PaaS solutions is if the customer refuses to put their data in the public cloud, their choices are to either use a private PaaS or to architect their solution to leverage APIs from within the public PaaS to access the data inside their datacenter. This strategy can create latency issues, network issues, and other less than optimal performance issues. The big advantage of public PaaS is that the consumer of PaaS services does not have to manage and maintain the infrastructure or the application stack (operating system, application server, database, and programming language). The PaaS provider does all of this on behalf of the customer. The customer simply focuses on building their application, which allows the developers to become more agile and get to market faster…
Read more from the source @ http://www.virtualizationpractice.com/the-pros-and-cons-of-private-and-public-paas-21961/