VIRTUAL CLUSTERS AND RESOURCE MANAGEMENT
A physical cluster is a collection of servers (physical machines) interconnected by a physical network such as a LAN. In Chapter 2, we studied various clustering techniques on physical machines. Here, we…
I/O Virtualization
I/O virtualization involves managing the routing of I/O requests between virtual devices and the shared physical hardware. At the time of this writing, there are three ways to implement I/O…
Memory Virtualization
Virtual memory virtualization is similar to the virtual memory support provided by modern operating systems. In a traditional execution environment, the operating system maintains mappings of virtual memory to machine memory using page tables,…
CPU Virtualization
A VM is a duplicate of an existing computer system in which a majority of the VM instructions are executed on the host processor in native mode. Thus, unprivileged instructions…
VIRTUALIZATION STRUCTURES/TOOLS AND MECHANISMS
In general, there are three typical classes of VM architecture. Figure 3.1 showed the architectures of a machine before and after virtualization. Before virtualization, the operating system manages the hardware.…
Levels of Virtualization Implementation
A traditional computer runs with a host operating system specially tailored for its hardware architecture, as shown in Figure 3.1(a). After virtualization, different user applications managed by their own operating…
Types of Virtualization
1.Application Virtualization. 2.Network Virtualization. 3.Desktop Virtualization. 4.Storage Virtualization. 1.Application Virtualization:Application virtualization helps a user to have a remote access of an application from a server. The server stores all personal…
BENEFITS OF VIRTUALIZATION
1.More flexible and efficient allocation of resources.2.Enhance development productivity.3.It lowers the cost of IT infrastructure.4.Remote access and rapid scalibility.5.High availability and disaster recovery.6.Pay per use of the IT infrastructure on…
Cloud Computing Virtualization
Virtualization is a technique, which allows to share single physical instance of an application or resource among multiple organizations or tenants (customers). It does so by assigning a logical name to a physical…
Type of Web Service
There are mainly two types of web services. SOAP web services. RESTful web services. In order for a web service to be fully functional, there are certain components that need…
