Is the Software Defined Data Center the Future?

VMware purchased Nicira, backed the Openflow Community, and is now touting software defined data centers (SDDC). But what is a software defined datacenter? Is it just virtualization or cloud with a software defined network? Or is it something more than that? Given heavy automation and scripting of most clouds, do we not already have SDDC? If not where are we going with this concept? What does SDN add to the mix?

AppFog – Polyglot Public/Private PaaS goes GA

AppFog (the company formerly known as PhpFog) has become the latest enthusiastic adopter of CloudFoundry to go to General Availability with a value-added implementation of the open source stack. The key differentiator is the RAM-based pricing policy around the Public Cloud offering – roughly $25 per GByte per month (first 2Gbytes are Free).

Private PaaS Update – Stackato 2.0 and Cumulogic 1.0

ActiveState Stackato and CumuLogic are private PaaS. Over the last few weeks Stackato has moved to a 2.0 version and CumuLogic has moved out of Beta to a 1.0 release. CumuLogic 1.0 is a Java-only PaaS with support for Amazon, HP Cloud Services, and private clouds including Citrix CloudStack, Eucalyptus, OpenStack and VMware vSphere. Stackato has a similar range of public and privae IaaS on which it operates (vSphere, KVM, XenServer, OpenStack, EC2 AMI, HP CS) but it has a much broader set of language compatibilities including .NET.ther new features in Version 2.0 are a centralized web-based management console and some support for charge-back (i.e. billing) through API. Performace management is through integration with New Relic. There is additional security support in multi-tenancy by using Linux Containers (LXC).