The Virtualization Practice

Author Archive for Bernd Harzog

Bernd Harzog
Bernd HarzogBernd Harzog is the Analyst at The Virtualization Practice for Performance and Capacity Management and IT as a Service (Private Cloud). Bernd is also the CEO and founder of APM Experts a company that provides strategic marketing services to vendors in the virtualization performance management, and application performance management markets. Prior to these two companies, Bernd was the CEO of RTO Software, the VP Products at Netuitive, a General Manager at Xcellenet, and Research Director for Systems Software at Gartner Group. Bernd has an MBA in Marketing from the University of Chicago.

In a world where you are changing everything – by moving applications in whole or in part from physical to virtual, to private cloud and ultimately (at least for some applications) to a public cloud, having an external reference point from which to judge the performance of these applications is essential. That reference point might best be the end user’s workstation, laptop or mobile device. Real User Monitoring solutions are likely to play a prominent role here.

Monitoring SQL Server Performance on VMware vSphere

Attempting to infer the performance of a database server by looking at resource utilization metrics will fail technically and organizationally. In a shared and dynamic environment, the only way to truly assess the performance of an element of the infrastructure or an application is to measure how long it is actually taking to do its job. This makes response time and its companion metric latency into the two most important metrics for virtualized and cloud based systems.

VMTurbo has delivered a new free vSphere performance and capacity management solution that is neither time nor size of environment limited, and that breaks new ground in terms of capacity management functionality delivered in a free solution. The automatically generated VM Rightsizing Recommendations should prove to be of particular value to vSphere administrators.

Public Cloud SLA’s are worthless. They need to be replaced by metrics that measure the responsiveness of what the cloud provider owns to the layer of software from the customer running in the cloud. Developing these metrics will require significant changes to existing APM approaches in order to be able to separate time spent in the application from time spent in the application framework or OS.

Running VMware on legacy infrastructure is like driving a Ferrari on a gravel road. If you look at what is run in most production VMware environments today, the only really new things in the environment is VMware vSphere, and possibly some new monitoring, security and backup tools. We have barely started to reinvent everything that needs to be reinvented in order to properly take virtualization, IT as a Service and public clouds to their logical and most beneficial conclusions.

Veeam Survey on using Enterprise Management tools for Virtualization

Many enterprises see virtualization as an opportunity to dump what they perceive as expensive, inflexible, and difficult to use enterprise management tools in favor of ones built for the new dynamic data center. Other enterprises simply view virtualization as one more silo that that needs to be managed with existing tools. Veeam’s nworks products clearly cater to the group who fall into the latter category.

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