I saw a question get posted on twitter that kind of intrigues me a little. The question was pretty straight forward. “How many virtual machines should I be able to run on a host?” That is really a fair question in itself but what I find intriguing is that this is the first question he asks. Is this really the first thing administrators think to ask when designing their environment? After all there is no set formula on how many virtual machines you can run on a host. You can be a little more exact when working with VDI because for the most part all the virtual machines would be set up pretty much the same way and the numbers can be a little more predictable. That would not be the case when working with server virtualization. You are going to have servers all with different configurations and amount of resources provisioned to the virtual machines. This variation is what will change your slot count and the amount of virtual machines you can run on the host.
Pano Logic announced today the release of Pano System 3.5, which adds support for Microsoft Hyper-V the alongside VMware vSphere.
When we talk about Cloud Security, the main concept is to separate, as an example, Coke from Pepsi. This implies that Tenant’s cannot impact the availability of each others data, the integrity of that data, and the confidentiality of that data. But what does this actually mean? Does this apply to all types of clouds in the same way?
There are three types of cloud families: Private, Hybrid, Public. There are at least 3 types of clouds: SaaS, PaaS, and IaaS. Do the same rules for one cloud family work for all cloud families? as well as for the types of clouds?
I believe the answer is yes.
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Although virtualization technologies have been a great help to data center managers looking to reclaim power in an overburdened environment, virtualization can also create problems. As IT organizations complete their server virtualization initiatives and as their virtualization management skills mature, use of the physical server power management features and dynamic workload shifting capabilities will increase. This, coupled with increased adoption of server hosted desktop virtualization, will create new opportunities for improving the efficiency of data center power and cooling systems, as well as new challenges for keeping up with increasing demand.
VMware and Citrix are partners – they have just not announced it. Both companies have realized that customers want the market leading application delivery suite (Citrix) to work on the market leading data center virtualization platform (vSphere) and with the cooperation of the partners who implement both solutions have made it happen.
Last month at VMworld, VMware took a major step forward in its desktop virtualization vision with the introduction of View 4.5. On hand for the launch was Gartner Research Vice President Chris Wolf who confirmed that View 4.5’s improved scalability coupled with the addition of role-based delegated administration change auditing features and the ability to support Windows 7 meant that View 4.5 joined Citrix XenDesktop 4.0 in fulfilling Gartner’s requirements for an enterprise-class server hosted virtual desktop platform. Although, View 4.5 is more notable for a feature that is not required to obtain Gartner’s blessing.
Christofer Hoff (@Beaker) and I had a short discussion on twitter the other day about the VMware Cloud Director (vCD) security guidance. We both felt it was a bit lite and missed the point of Secure Multi Tenancy. However, I feel even more strongly that people will implement what is in the vCD Guidance, vBlock Security Guidance, and the vSphere Hardening Guidance, and in effect have a completely insecure cloud. These three guides look at the problem as if they were singular entities and not as a whole.
I can remember, in what seems like a really long time ago, about the creation of a new company, Acadia, that will support the coalition of VMware, Cisco and EMC’s vBlock product. I had really long forgotten about the new company that was going to be formed when EMC really started their hiring blitz and campaign to get all the well known talent that EMC could get their hand on. That had been the news and buzz in the industry, as well as a nonstop twitter topic speculation about who was going to be the next person to enroll in Chad’s Army as a vSpecialist. It really appeared that the EMC crew was going to be in the best position to support and sell vBlock technology.
Buying the Managed Objects assets of Novell would give VMware a credible entry into the Business Service Management realm with product assets that could compete head to head with those from CA, IBM, HP and BMC – especially on the VMware platform. However there were significant issues with BSM as implemented by all of these vendors, and acquiring a BSM product set would not in an of itself address those all of those (Integrien helps with root cause) issues. The real answer here remains a virtualization and cloud competent performance assurance capability which should be attainable without recreating the baggage of BSM.