NTFS AND HYPER V The New Technology File System (NTFS) is the standard file structure for the Windows NT operating system. It is used for retrieving and storing files on the hard disk. The NTFS introduced a number of enhancements, including innovative data structures that increased performance, improved metadata, and added expansions like security access control, reliability, disk space utilization, and file system journaling. The NTFS replaced the OS/2 High-Performance File System and the Windows 95 file allocation table (FAT), which was used in MS-DOS and earlier operating system versions. NTFS is also used with Windows 2000, Windows XP, and Windows Server 2003.NTFS was initially designed for the Intel i860 XR processor released by Microsoft in 1993. Although IBM and Microsoft worked together to create the graphical operating system known as the OS/2, they disagreed on many important issues and they eventually separated. IBM continued to work on the OS/2, while Microsoft started working on Windows NT. The OS/2 HPFS had many new features that were also used with Windows NT. Both HPFS and NTFS share the same disk partition identification type code (07), which is unusual because there are dozens of codes available. The new reliable features of the NTFS include a fault tolerance system that automatically repairs hard drive errors without error messages. The NTFS also retains detailed transaction records that keep track of hard drive errors. This feature is beneficial in recovering files if the hard drive crashes; it also helps to prevent hard disk failures.
Virtualization is best understood by considering that all systems in your virtual infrastructure are available to any systems who request it and therefore those resources could potentially run out. By using virtualization, the physical characteristics of a host system are now kept hidden from the way in which other systems and applications interact with it. Virtualization is a broad term and can lead to more confusion as more components are virtualized and added to your infrastructure, or to help create the infrastructure. A great example is the virtual switch and networking. The trouble with working in a virtual environment is that is can be tricky to understand all the different types of virtualization, how they are configured and how they interact with the system when you configure them for use.
There are currently three major types of virtualization that are available for use with Windows Server 2008 with Hyper-V role installed. They are server, network and storage virtualization. Server virtualization is what we have been explaining up until now; you are creating a virtual environment out of physical resources in which slices of each resource can be given to specifically configured hosts. By building your servers in a cluster and scaling up your systems with hardware and power, you can exponentially grow your resource pool and virtual infrastructure as needed.
When using virtualization, you create virtual machines, each of which capable of running a different operating system on a single physical machine while the virtual machines run without interference behind partitions. This can be used to simulate multiple native environments and most of the benefits that would normally require multiple machines and deployments. This allows a single machine to run multiple operating systems simultaneously while allowing you to dynamically add physical and virtual resources to those machines as needed. For example, you can install multiple virtualized operating systems on the host computer and each virtualized operating system will run in isolation from the other operating systems installed. Windows Server 2008 Hyper-V is the hypervisor-based virtualization feature included as a role of Windows Server 2008. It contains everything needed to create a virtual network. These virtual networks enable IT organizations to reduce costs, to improve server utilization and to create a more-dynamic IT infrastructure. This enables you to create a nimble and multifunctional datacenter and progress toward achieving self-managing dynamic systems