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notes of cloud computing how to store data in cloud
Typology: Exercises
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Virtualization is a partitioning of single physical server into multiple logical servers. Once the physical server is divided, each logical server behaves like a physical server and can run an operating system and applications independently. Many popular companies’s like VmWare and Microsoft provide virtualization services, where instead of using your personal PC for storage and computation, you use their virtual server. They are fast, cost-effective and less time consuming.
VM technology allows multiple virtual machines to run on a single physical machine. Hardware Virtual Machine Monitor (VMM) / Hypervisor Guest OS (Linux) Guest OS (NetBSD) Guest OS (Windows) VM VM VM App App App App App Xen VMWare UML Denali etc.
1) Hardware Virtualization 2) Software Virtualization 3) Network Virtualization 4) Server Virtualization 5) Storage Virtualization
Software virtualization is just like a virtualization but able to abstract the software installation procedure and create virtual software installations. Example of software virtualization is VMware software, virtual box etc.
It is a method of combining the available resources in a network by splitting up the available bandwidth into channels, each of which is independent from the others and each channel is independent of others and can be assigned to a specific server or device in real time.
Server virtualization is the masking of server resources like processors, RAM, operating system etc, from server users. The intention of server virtualization is to increase the resource sharing and reduce the burden and complexity of computation from users.
A hypervisor is a function which isolates operating systems and applications from the underlying computer hardware. This abstraction allows the underlying host machine hardware to independently operate one or more virtual machines as guests, allowing multiple guest VMs to effectively share the system's physical compute resources, such as processor cycles, memory space, network bandwidth and so on. A hypervisor is sometimes also called a virtual machine monitor.
