Dirty little secrets of virtualization

27.04.2011
This vendor-written tech primer has been edited by Network World to eliminate product promotion, but readers should note it will likely favor the submitter's approach.

The virtualized has accelerated the pace of operational change. Virtual machines are reconfigured, computing loads are moved, and are scaled up and down rapidly. We know that with rapid rates of change come high levels of mistakes; analysts estimate that 60% to 80% of data center problems are caused by management mistakes. How can you ensure the stability of your data center while at the same time taking maximum advantage of the flexibility of ?

Virtualization promises to improve data center operations and indeed it does. consolidation has great benefits. The ability to migrate loads without stopping them greatly eases hardware management. The ability to deploy new virtual machines in a fraction of the time of a physical machine makes application development and deployment more rapid and effective.

ANALYSIS:

However, the advantages of virtualization bring some associated costs. The hypervisor adds another level of complexity in the software stack and imposes requirements on the servers, the storage system, and especially on the network. While the hypervisor offers some automation for simplifying operations of servers, the environment around the virtual cluster was impacted without being made any simpler.

In a recent survey of Infoblox customers, 70% reported that virtualization put more pressure on their network operations. It's easy to see the source of this pressure. Every virtualization initiative is surrounded by physical resources: