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NT File Systems

Learn about the history and defining features of Windows NT file systems, including FAT and NTFS. Explore their differences, compatibility, security, and permissions. Discover other file systems and how to use them in workgroups and domains.

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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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