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NT File Systems

NT File Systems. by Eunice Swinson Southeastern University Professor: Mort Anvari June 3, 2000. Introduction. - Overview of NT History - Defining a file system. NT History. Developed by Microsoft in early 1980s It was developed to run on top of MS-DOS operating system

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NT File Systems

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  1. NT File Systems by Eunice Swinson Southeastern University Professor: Mort Anvari June 3, 2000

  2. Introduction - Overview of NT History - Defining a file system

  3. NT History • Developed by Microsoft in early 1980s • It was developed to run on top of MS-DOS operating system • Microsoft joined forces with IBM to create a more powerful DOS • NT resemble the UNIX operating system

  4. NT History con’t • Microsoft split from IBM to work on more advanced 3.x version • Sales for Win 3.1 skyrocketed, but sales for NT 3.1 failed • In 1994, cost of PC dropped

  5. Defining a File System • OS using to manage the data on a drive • Before installing Windows NT decide what system to use • FAT - File Allocation table • NTFS - New Technology File System

  6. Choosing a file System • FAT has four components- boot record, FAT, directories, and data files • NTFS has 64-bit entries and core master file table • FAT is backward compatible with DOS and Windows 95 • NTFS is more fail-safe; more secure; and more efficient for large hard drives

  7. FAT • Supported by DOS, OS/2, Windows 95 and Win NT • Can be converted to NTFS at any time • Less overhead than NTFS, works best with hard drives <500 MB • Maximum partition size of 4GB

  8. FAT con’t • Does not support file compression • No local security available • Does not support Macintosh files • Does not support NetWare file/permission during migration

  9. NTFS • Local security is available • Supports Macintosh files • Supports NetWare file/permission during migration • It supports large-volume drives

  10. NTFS • Only supported under the NT Operating System • Can’t be converted to FAT

  11. NT Security and Permission • Way to control resources user and group accounts • Required logon based on given permission • Two types of of security - local and network • Local governs user to log on where resources are located

  12. NT Security and Permission con’t • Permission can be applied to file or folder • Users can access resources over the network

  13. Other File Systems • Virtual File Allocation Table (VFAT) • Network File System (NFS) • Virtual Storage Access Method (VSAM) • High Performance File System (HPFS)

  14. Using Workgroups and Domains • Workgroup are a logical group of computer and users that share resources • Domain is a group of networked computers that share a centralized directory database of user account information and security • PDC stores and controls database called directory database or SAM • Each computer with a backup directory database is called BDC

  15. References • Andrews, Jean, A+: Certified Computer Technician, Certification Insider Press: Albany, NY, 1998. • Donald, L. and Chellis, James. NT Server 4 in the Enterprise Study Guide, 2nd SYBEX, Inc.: San Francisco, CA, 1998 • www.ewweb.com/articles/0399ew01.html and www.Microsoft.com

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