The Virtualization Practice

Data Center Virtualization

Data Center Virtualization covers virtualizing servers, networks, and storage delivering server consolidation, CAPEX savings, IT agility, and improved management. Major areas of focus include the tradeoffs between various virtualization platforms (VMware vSphere, Microsoft Hyper-V and Red Hat KVM), the evolution of hypervisors into data center management platforms, ...
VMware’s Software Defined Data Center strategy, and how the SDDC is spurring innovation in storage, networking and server hardware. Covered vendors indlude VMware, Microsoft, Red Hat, CloudPhysics, Hotlink, Tintri, and VMTurbo.

Virtualizing tier 1 business critical and performance critical applications will require that the virtualization team be able to provide assurances about infrastructure performance and applications performance to the applications teams and their constituents. This is a dauntingly complex requirement to meet due to the fact that meeting it requires the integration of tools that are not integrated today, and that virtualization adds risk to the equation due to the dynamic behavior of virtualized systems.

The security companies are looking into all aspects of virtual environment introspection to label, tag, or mark all objects for compliance reasons, inspect the contents of virtual machines for asset management (CMDB), and an early form of Root Kit detection.

Virtualization Security is not just about the firewall, it is about the entire ecosystem, auditing, compliance, and object management.

While doing a quick Google search to find what a Cloud is, I have found several different definitions which depend on which vendor site you pull up. One thing is for sure despite the frequent use of the term, it still means different things to different people and or companies. For my reference point I am going to use the National Institute of Standards and Technology definition referenced by Texiwill’s NIST Cloud Computing Definitions Final article.

As of Service Pack 1, SUSE Linux Enterprise Server 11 (SLES) supports KVM for SUSE guests. This post follows on from our previous post regarding the demise of Xen in Red Hat Enterprise Linux, and perhaps suggests the beginning of the end for Xen-based virtualization in Linux, but the story is far from clear. A complex set of agreements with Microsoft mean that Novell is bound to preferentially support Windows guests, and it may be a while before KVM support is adequate, although Novell has a project called Alacrity to help get it there. In the meanwhile Novell may get split up into pieces by a private equity house and SLES find itself a new owner.

VMware has now announced two new advanced certifications that will be available for registration in the very near future. VMware Certified Advanced Professional 4 – Datacenter Administrator (VCAP4-DCA) and VMware Certified Advanced Professional 4 – Datacenter Design (VCAO4-DCD). Both these certification and exams are a stepping stone for the VMware Certified Design Expert on vSphere 4. These new exams are in all intensive purposes an updated version of the exams needed for the VCDX certification for ESX 3 but with the added bonus of advanced certifications during the journey to achieving the coveted VCDX certification. Let’s take a quick overview of the new certifications.

Is the CMDB Irrelevant in a Virtual and Cloud Based World?

The CMDB’s that were designed and architected for static physical systems appear to be unwieldy, too difficult to keep up to date, and not real-time enough to make the transition into the virtualized and cloud based world. Virtualized environment change too fast for existing CMDB’s to keep up, and the notion of keeping a CMDB up to date as assets are moved into and out of public clouds seems hopelessly beyond the intended original use case of a CMDB. A new category of datastore is needed that will address the needs of virtualized and cloud based environments, while incorporating performance information with configuration information.

PhD Virtual has gained its second round of funding with investment from Citrix amongst others as discussed within our post News: esXpress is no more but what does this mean for XenServer? Up until this point it looked like Citrix was out of the server hypervisor wars and backing Microsoft’s Hyper-V play. Yet this looks on the surface like a basic shift to that direction. Yes, XenServer was placed into the OpenSource community and the latest improvements, such as the Open VSwitch integration and a new releases emphatically say that XenServer is alive and well and that its ecosystem is growing for that matter so is Hyper-V’s.