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.

In a slightly strange “didn’t they already have Xen in the kernel” kind of way, Novell has certified Suse Linux Enterprise Server as a “perfect guest” running on Citrix XenServer, allowing joint support of the combined solution. The deal is asymmetric (it wouldn’t really make sense to run XenServer on SLES) but it reflects an open approach characteristic of the way Novell operates, in embracing the reality that customers will want to use one of a number of possible hypervisors, and that Novell has to get along with everyone. In return Novell is starting to push it’s PlateSpin Recon product through the Citrix channel.

Rethinking vNetwork Security

Brad Hedlund of Cisco asked the question, should the physical network security policy be different than the virtual network security policy? The answer is obviously no, but why are they treated separately? I and other have pushed the concept that to gain performance, redundancy, and security that you should use multiple network links to your virtualization host to separate traffic. However, does this really give you security?

The End of ESX is Near – Is ESXi Ready for the Enterprise?

Well the worse kept secret in virtualisation is now finally out in the open, have a read of VMware ESX to ESXi Upgrade Center:Planning your Upgrade to the next-generation hypervisor architecture where they state that “In the future, the superior architecture of ESXi will be the exclusive focus of VMware’s development efforts. This means that not only will the ESXi hypervisor superceed the classic ESX hypervisor in a new version of vSphere; what the time scale is, is currently unknown however it is most likely to be vSphere 5 or whatever they decide to call the next major release. What is more interesting in statement is that VMware expects their customers to upgrade their existing installations of vSphere based on the ESX hypervisor to the new ESXi hypervisor.

I had an interesting conversation with Vizioncore yesterday about how backup is not as much a decision about what software to use but what process to use. In addition, this process needs to be considered from the very beginning of your virtualization architecture. With the quantity of virtual machines being used today by the SMB and Enterprise customers, the backup window has grown to nearly an all day event. What you say? An all day event? My backups happen with the window I set.

Those of you who attended VMworld this year will remember the stack of servers and storage on display happily serving VM’s to the vistors, exhibitors and Staff at the conference, well one of the key components of that stack was provided by Xsigo. Their product the I/O Director offers signficant savings in large environments by effectively virtualising the I/O stack. I am not going to go into the ins and outs of I/O virtualization in this article. Well it now appears that they are expanding their partnerships.