Virtualization Skills Are In Demand and How to Develop Them
Cloud computing and virtualization has become more than a concept on the drawing board. As data centers seek to curb expenses and think long term strategy and forecast positioning, the move to a virtualized center becomes a reality. This move becomes an easier decision as advances in virtualization technology brings faster memory, more powerful routers, stability in the virtual cloud, and other factors.
The simplest description of virtualization is the division of a software service from the physical hardware to a non-physical environment resembling the original hardware and software system.
Virtual local area networks can act as a non-physical platform, a group of networks and switches operating as if they were in the same physical location. Software handles the configuration of the virtual LAN instead of hardware devices. Routers handle the security, filtering, addressing and management of traffic flow.
Platform virtualization uses a control host software application to create the simulated virtual environment. This type of virtualization is recognized as being very cost-efficient, reducing power consumption, the amount of servers employed and cooling expenses. Green computing at its best. With platform virtualization, access to the actual physical assets, such as a printer or hard drive may be restricted by limitation policies set by the host software.
Application virtualization executes as a subset of the runtime environment, where the virtualized layer readdresses file and registry processes to the non-physical location, such as a solitary file. With the processes operating from a single location, the platform can execute on a completely different machine. Different applications that can't operate on physical hardware systems execute on virtualized systems seamlessly. This type of situation is perfect for isolating applications from one another. Test environments, increased security, application mirroring, less resource consumption, and application streaming are some of the advantages.
Storage virtualization is exactly as it sounds. Through the utilization of combining and sharing storage resources into a single source, virtualized systems can be achieved. The usual savings in cost, efficiency, asset usage, a reduction in the number of managed systems, and improved application and information availability are immediately recognized.
As more and more companies realize the advantages of virtualization, the number of vendors providing virtualized solutions will also increase. Some of the mainstream heavy hitters leading the field include Microsoft, VMware, Citrix and others. These companies also offer certification courses for individuals interested in gaining knowledge in this growing field.
Citrix offers XenServer server virtualization classes. Their Citrix Certified Administrator (CCA) substantiates the applicant's ability to use a specific Citrix product, such as XenServer Enterprise edition. The Citrix Certified Advanced Administrator (CCAA) certification track takes the CCA a step forward, in demonstrating the ability and in-depth skill set in troubleshooting, optimizing and monitoring specific Citrix products.
Microsoft provides their M icrosoft Certified Technology Specialist (MCTS): Windows Server Virtualization, Configuration exam for interested professionals seeking to advance their abilities in virtualization products and technologies. Installation, configuring, optimizing, deploying and managing a virtualized system in covered in the certification course.
VMware has their VMware Certified Professional series, including vSphere4 (VCP4), VMware Certified Professional (VCP3), and VMware Certified Design Expert (VCDX3). VMware certification courses include the vSphere Install, Configure and Manage module, the vSphere Fast Track module and the VMware vSphere Troubleshooting course. Upon reaching the Design Expert level, applicants must pass the Enterprise Administration exam, live labs and tests that are more stringent than the earlier courses, pass a design exam focusing on actual design situations, simulations and questions, and submit, present and defend a VMware Infrastructure design and implementation plan.
With time, virtualization will continue to prove it dramatically improves the efficiency and availability of resources and applications in enterprise to medium sized organizations. Certifications in this dynamic technology will increase for professionals who want to expand their knowledge base, enhance their career and distinguish themselves as possessing the core competencies necessary to carry virtualization technology forward.
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