Storage virtualization, like server virtualization, abstracts the services provided by hardware. Rather than expect Storage Virtualization for VM For example, a Java application server may be configured differently if we expect heavy, moderate, or light use. Applications may have different configurations depending on how the application is used, and this could also warrant having multiple versions. Also, different configurations of an application may require different versions of supporting libraries, so we may need to support several versions of similar images. Building Virtual Machine Imagesīuilding virtual machine images is a straightforward task, but we must be careful to analyze application dependencies to ensure all necessary supporting software is in place. Please read the architectures of three VM configurations. However, the basic concepts of virtualized resources, such as VMs, virtual storage, and virtual networking and their virtualization software or middleware, need to be introduced first. In particular, a cloud of provisioned resources must rely on virtualization of processors, memory, and I/O facilities dynamically. We need to aggregate those resources, and hopefully, offer a single system image. Today, to build large clusters, grids, and clouds, we need to access large amounts of computing, storage, and networking resources in a virtualized manner. A Virtual machine (VM) offer novel solutions to underutilized resources, application inflexibility, software manageability, and security concerns in existing physical machines. Some software running well on one machine may not be executable on another platform with a different instruction set under a fixed OS. This offers a rigid architecture that tightly couples application software to a specific hardware platform. A conventional computer has a single OS image.
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