| Important operating systems like Windows NT, | | | | USN journal to keep track of all the changes done |
| 2000 and XP is based on NTFS file system. The | | | | on the volume. |
| purpose for developing file systems is to | | | | 4. By using the facility provided by NTFS 5.0, |
| administer files, folders and to manage all that | | | | administrators of the computer can limit storage |
| information needed to access the files from local | | | | capacity of a specific volume. |
| or remote computers. Two versions of NTFS | | | | Structure of NTFS File System |
| have been released up till now- NTFS 4.0 and | | | | NTFS disk is partitioned into two parts, 12% of it |
| NTFS 5.0. First version NTFS 4.0 supports | | | | constitutes by MFT that doesn't make to save |
| Windows NT while NTFS 5.0 with some new | | | | any thing and remaining 88% is used for the |
| exciting features supports windows 2000 and | | | | purpose of files storage. |
| windows XP. Most common features which are | | | | What is MFT? |
| found in both of them are listed below | | | | Every component of the system and information |
| 1. It provides support to Mac files | | | | related to operating system is considered to be a |
| 2. It helps in compression of files which are | | | | file. The most important file of NTFS is MFT |
| readable and writeable while the process is in | | | | (Master File Table) containing all the necessary files |
| progress. | | | | of system. This table is divided into some fixed |
| 3. NTFS file system can recover the files lost due | | | | size of records of 1 byte. These all records refer |
| to power failure or system breakdown. | | | | to some files and first 16 files are directly linked |
| Some of the salient features of NTFS 5.0 are as | | | | with operating system and only operating system |
| under: | | | | can access those files. |
| 1. It can encrypt or decrypt the data during | | | | The first 16 files are named metafiles which are |
| reading and writing any file from hard disk | | | | basically the system files. These files are basically |
| automatically. | | | | meant for some basic functions of operating |
| 2. NTFS 5.0 lets you write files of maximum | | | | system. Such metafiles exist in the root directory |
| length but only occupies the required and | | | | of NTFS and can only be searched by appending |
| necessary space. | | | | "$" sign in start of the file. For example if you |
| 3. This version of NTFS file system is given with | | | | want to locate log file you have to write $LogFile. |