Cloud Computing will rely upon adequate Internet bandwidth being available to ensure that users of cloud computing services have an acceptable end user experience, and that providers of these services can promise that acceptable experience to their customers. The Internet needs a funding model that ensures that the right capacity is available to the applications (cloud services) that need it. We face a choice as to whether or not FCC regulation will help or hurt the progress towards the correct funding (and ultimately payment for Internet services model). Choosing incorrectly may severely inhibit the growth of Cloud Computing services due to confusion over bandwidth and pricing decisions.
Implementing IT as a Service requires a virtualization platform, and virtualization aware configuration and change management, secure multi-tenancy, provisioning and lifecycle management, orchestration and automation, and service catalog. These capabilities are available from VMware, DynamicOps, Embotics, Eucaplyptus, ManageIQ, newScale, Quest, rPath and Reflex Systems.
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The acquisition of Cloudlick by Rackspace points out the need for IaaS cloud vendors to get serious about offering an Infrastructure Performance Management solution to their customers – but fails to deliver such a solution to the customers of Rackspace. Cloud customers should focus upon finding true cloud ready Infrastructure Performance Management and Applications Performance Management solutions as a part of putting performance critical applications in public clouds.
The question of whether and how to replace DRS is really a part of the question of what is in the virtualization platform and what is not. Clearly the virtualization platform consists of much more than the hypervisor. VMware would like to define the virtualization platform as all of vSphere Enterprise Plus, and then suggest that vCloud Director and its own performance management solutions are logical extensions of that platform. Enterprises need to be careful about where they draw their own lines in this regard. As VMware is a clear market leader both in terms of product functionality and enterprise installations, VMware needs to be given full credit for the quality of vSphere and its success. However full credit does not need to imply that one is 100% locked in to VMware solution as there is room to pursue third party IT as a Service, Performance Management, and Service Assurance strategies as well as replace/augment components in vSphere.
For a developer, and subsequently the team of people that has to support certain kinds of applications in production, a PaaS cloud can be a wonderful thing. Why can a PaaS cloud be so wonderful? Because if you have a web based application based upon Java, Ruby-on-Rails, or .NET you can find a cloud provider that handles the entire hardware and software platform for your application.
Can you use Desktop Virtualization in your organization to improve IT delivery? Desktop Virtualization, as a concept, is straightforward – separate the desktop environment from the physical machine. This gives you benefits in terms of speed of delivery, how you can provide access to mobile and remote workers, how you can ensure security and compliance.
As business critical applications move into production virtualized environments, the need arises to ensure their performance from a response time perspective. Legacy Applications Performance Management tools are in many cases not well suited to make the jump from static physical systems, to dynamic virtual and cloud based systems. For these reasons enterprises need to consider new tools from vendors that have virtualization aware and cloud aware features in their APM solutions. Vendors like AppDynamics, BlueStripe, dynatrace, New Relic, OPNET, Optier, Quest, and VMware (AppSpeed) are currently leading this race to redefine the market for APM solutions.
Cloud Computing ...
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vCloud Director is a good start at an IT as a Service platform for enterprises looking for a VMware specific solution that does not integrate with existing physical or non-VMware provisioning mechanisms. Enterprises looking for IT as a Service solutions that span multiple virtualization platforms and that span provisioning across virtual and physical resources should look at alternatives from Platform Computing DynamicOps, newScale, Embotics, Euclyptus, ManageIQ and rPath as these vendors all offer heterogeneous enterprise class IT as a Service platforms.
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In a virtual system the tenancy to translate over-provisioning physical CPU’s into over-provisioning virtual CPU’s can be very harmful as the graph above shows. Assigning four vCPU’s to a VM makes it harder for that VM to get scheduled in as the hypervisor has to wait for four vCPU’s to become available at the same time. It is therefore the case that configuring a smaller number of vCPU’s for an application can actually improve the amount of CPU resource that it actually gets and therefore improve its performance. Investing in tools (like VMTurbo) that do this work for you automatically can help you convince applications owners of this, and thereby help their applications perform better.
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